## 3.27.1

- Enabled `select_region` to converge across multiple passes (CFE-3866)
- Fixed buffer overflow in the files promise
- Fixed memory leak in `isreadable()` policy function
- Fixed segfault when `cf-secret` print-headers is called without an encrypted file
  (CFE-4647)
- Fixed bug causing files promise to fail copying files on vfat file system
  (ENT-13809)

## 3.27.0

- Added evaluation order option in body agent control (ENT-13295)
- Added findlocalgroups() policy function (CFE-4550)
- Added getgroupinfo() policy function (CFE-4512)
- Added getgroups() policy function (ENT-12722)
- Added isnewerthantime() policy function (CFE-2815)
- Added missing recording of changes/failures when cf-agent is flipping the immutable bit
  (ENT-13179)
- Added policy function classfilterdata() (CFE-3421, ENT-6193)
- Added policy function getacls() (CFE-4529)
- Added sys.policy_version variable (ENT-4043)
- Added sysvinit cf-php-fpm service script for Mission Portal (ENT-13234)
- Atomic permissions during file copy
  Temporary file is now set to promised permissions before replacing it
  with original during remote copy from (ENT-13163)
- Files promise can now modify immutable bit in file system attributes
  (CFE-1840, ENT-10961)
- Fixed assertion error in classfilterdata()
- Fixed bug in getacls() where no ACLs caused error
- Fixed a bug where a successful files content promise causes remaining
  files promise attribute handling to be skipped. (CFE-4569)
- Remote file copy with the `copy_from` attribute now only preserves
  source file permissions if the `preserve` attribute in `body copy_from`
  is true. Otherwise it will use the permissions of the destination file
  if it already exists and default permissions if it does not. (ENT-11988)
- Fixed bug where rename fails to reset temporarily cleared immutable bit
  (ENT-13179)
- Fixed cf-support usage of coredumpctl matching (ENT-13272)
- Fixed crash in readyaml when parsing an empty file (CFE-4595)
- Fixed file descriptor leak in sys.cpusockets (CFE-4536)
- Fixed file descriptor leak when creating the am_policy_hub file
- Fixed move_obstructions support when using content and edit_template attributes
  (CFE-4591)
- Fixed bug causing rendered files can result in erroneously empty files
  as a result of promise locking (ENT-9980)
- Removed useless output from cfengine3 init script (ENT-13234)
- The policy profiling logic is now implemented natively within the cf-agent,
  replacing the previous reliance on cf-agent logs and the cf-profile.pl
  script for faster execution (ENT-8096)
- The acl attribute of the files promise can now override the immutable
  bit (CFE-1840, ENT-10961)
- Classfilterdata() now supports `object_of_objects` and `object_of_arrays`.
  The class expression can be stored in either the key to the object
  itself, or key/index inside object (CFE-4562)
- The content attribute of the files promise can now override the
  immutable bit (CFE-1840, ENT-10961)
- The copy_from attribute of the files promise can now override the
  immutable bit (CFE-1840, ENT-10961)
- The delete attribute of the files promise can now override the immutable
  bit (CFE-1840, ENT-10961)
- The edit_line and edit_xml attributes of the files promise can now
  override the immutable bit (CFE-1840, ENT-10961)
- The perms attribute of the files promise can now override the immutable
  bit (CFE-1840, ENT-10961)
- The rename attribute of the files promise can now override the immutable
  bit. The disabled file will inherit the immutable trait of the original
  file (CFE-1840, ENT-10961)
- The touch attribute of the files promise can now override the
  immutable bit (CFE-1840, ENT-10961)
- The transformer attribute of the files promise can now override the
  immutable bit (CFE-1840, ENT-10961)
- Added default_directory_create_mode to body agent control (CFE-4590, ENT-13239)
- Added cf-profile.py script for processing profiling output
- Added evaluation_order option in body file control (CFE-4598)
- Added tag `derived-from-file` to Alpine, Amazon Linux, Arch, Debian,
  EOS, Fedora/Red Hat, Gentoo, Mandrake/Mandriva, Manjaro, OpenVZ,
  Oracle Linux, Oracle VM Server/Red Hat, Red Hat, Slackware, SuSE,
  Sun Cobalt, United Linux, VMware, Xen, have_aptitude, and other
  OS classes/variables (CFE-4531)
- Fixed potential buffer overflow when creating tables using the databases
  promise type (ENT-13552)
- Fixed buffer overflow in build XPath for edit_xml (ENT-13550)
- Fixed buffer overflow in cf-secret when using multiple keys of different sizes
  (ENT-13591)
- Fixed heap buffer overflow in files edit_line (ENT-13590)
- Fixed json policy parsing by adding new field "evaluation_order" to the expected output
- Fixed length checking in StatFile (ENT-13542)
- Fixed potential buffer overflow when computing chroot path
  (ENT-13551)
- Fixed potential buffer overflow when converting strings to GIDs/UIDs
  (ENT-13551)
- Packages promiser is now escaped when using shell commands
  (ENT-13535)
- Renamed changelog file to CHANGELOG.md (ENT-13497)

**Security fixes:**

- CVE-2026-24712 - Injection in CFEngine Policy Language:
  https://cfengine.com/blog/2026/cve-2026-24710-and-cve-2026-24711-and-cve-2026-24712/

## 3.26.0

- Improved error message in abortbundleclasses, for example when there are
  no matches due to using a space in the regular expression (CFE-4075)
- Updated syntax description to include new protocol_version values
  (CFE-4483)
- Switched to using current process ID to investigate proc filesystem
  to workaround in-container non-root owned symlinks (CFE-3429)
- Modified getindices() to return positional index from a list
  (CFE-2930)
- Changed `cf-net connect` to return exit code 1 in case of error (CFE-4414)
- Added http_port and getattr selinux permissions as needed for selinux
  policy on rhel-8 and rhel-9 (ENT-12954)
- Added feature class for libpam (CFE-3371)
- Added hardclasses for log levels notice, warning and error (CFE-4126)
- Added sys.cf_edition variable that keeps track of whether cfengine is
  community or enterprise. (ENT-10078)
- Added sys.cpusockets variable (CFE-30)
- Added sys.moduledir variable (CFE-1484)
- Added sys.keydir variable (CFE-2822)
- Added getbundlemetatags() policy function to get the list of metatags
  of a bundle, in the same manner as getclassmetatags and getvariablemetatags
  (CFE-4019)
- Added is_type() policy function to check type of a variable (CFE-3641)
- Added useringroup() policy function that returns whether a user
  is a member of a group. (ENT-12721)
- Added findlocalusers() policy function that returns all the local users
  matching certain attributes (CFE-2318)
- Added hostswithgroup() policy function to get hosts from a group,
  selecting a specific field. This function is enterprise only
  (ENT-11325)
- Added isconnectable() policy function to check if a port is
  connectable within a time limit in seconds. (ENT-10666)
- Added an optional parameter strict for validjson and validdata policy
  functions. This makes the functions evaluate to false on json
  primitives. (CFE-4163)
- Added missing "BEGIN meta promises" verbose logging (CFE-2829)
- Added option to print rsync performance stats in cf-net
- Added php-fpm systemd service files to enable http2 in Mission Portal
  (ENT-11440)
- Fixed an issue where rhel >8 packages would not have correct openssl
  dependency version (ENT-12587)
- Fixed a bug causing a file to be closed twice in CopyRegularFileDiskPerms() (CFE-4489)
- Fixed a bug in parsing process_select for Windows (ENT-12751)
- Fixed a bug which removed performance benefits of rsync in file
  transfers (basis file was truncated on remote copy)
- Fixed a bug where remotely copying large files consisting of random
  bytes would cause internal server error. (CFE-4507)
- Fixed incorrect handling of exit code in cf-runagent (ENT-12712)
- Fixed junk printed in case of internal server error (CFE-4507)

## 3.25.0

- Various SELinux fixes (ENT-12466):
  - Added create capability on cfengine_var_lib_t:dir to cf-hub
  - Added filesystem and files unconfined access to cf-monitord in cfengine-enterprise SELinux policy
  - Added getattr access for cf-serverd to socket file in CFEngine SELinux policy
  - Added getattr capability for cert_t:dir as needed to CFEngine components in cfengine-enterprise SELinux policy
  - Added sys_ptrace access for apachectl to run ps in CFEngine SELinux enterprise policy
  - Adjusted CFEngine SELinux policy to allow cf-execd to run ps command with policy version 33
  - Adjusted SELinux policy to allow components which run cf-promises to getattr everywhere and read symlinks
  - Granted more access to certificates directory for CFEngine components in SELinux policy
- Adjusted cf-support for exotic UNIX platforms (ENT-9786)
- Adjusted cf-support to not fail if core dumps are available and gdb is missing
  (ENT-9786)
- Agent now also ignores interfaces listed in ignore_interfaces.rx when
  looking for IPv6 interface info. Variables such as
  `default:sys.hardware_mac[<INTERFACE>]` will no longer be defined for
  ignored interfaces.
  (ENT-11840)
- Made copy_from more atomic in files promises:
  - The new file (i.e., `<FILENAME>.cfnew`) is now created with correct
    permission during remote copy. Previously it would be created with
    default permissions.
  - The destination file (i.e., `<FILENAME>`) is no longer deleted on
    backup during file copy. Previously it would be renamed to
    `<FILENAME>.cfsaved`, causing the original file to dissappear. Now an
    actual copy of the original file with the same permissions is created
    instead.

  As a result, there will no longer be a brief moment where the original
  file is inaccessible. (ENT-11988)

- The file stream API now unlinks the destination file (i.e.,
  `<FILENAME>.cfnew`) before opening it with the `O_EXCL` flag. Previously
  the agent would fail if the destination file already exists.
  Fortunately, the File Stream API unlinks this file afterwards, both on
  success and error, causing the agent to recover. Both the
  `cf-net get <FILENAME>` command and the `copy_from` attribute were affected.
- The file stream API now writes sparse files (ENT-12414)
- Re-enabled DB migration support for LMDB
  - Now creates backup before LMDB migration
  - Handle LMDB migration failures
  - In case of LMDB migration failures, the respective database file is
    moved to the side, and a fresh database is created.
- Changed `cf-net get` to no longer unlink original file (ENT-12511)
- SELinux: Allowed cf-serverd to set its own limits (ENT-12446)
- commands promises with exit codes not matching any
  `_returncodes` attributes from classes body now log an
  error message not just an info message. (CFE-4429, ENT-12103)
- Added acknowledged field to lastseen DB (ENT-11838)
- Added logging CFEngine component related SELinux denials in cf-support
  (ENT-12137)
- Added option to choose protocol version in cf-net (ENT-12519)
- Added a new network protocol version v4 - filestream (ENT-12414)
- Fixed bug causing LMDB database corruption
- Fixed possible segfault when backing up LMDB databases

## 3.24.0

- Added a sanity check to policy parser that checks for and warns
  in case of promise declarations with no actions. The motivation
  for this check is to aid policy writers in detecting semantic
  errors early. (ENT-11137)
- Added sys.os_name_human variable for Alpine, postmarketOS, OpenBSD and NetBSD
- Added warning log message when OS is not recognized (CFE-4342)
- Adjusted locale settings in masterfiles stage common script to
  handle more cases (ENT-11885)
- Adjusted package module inventory to include quotes around
  fields when needed (CFE-4341)
- Added `sys.os_name_human` and `sys.os_version_major` variables
  for Amazon. Additionally changed value of `sys.flavor` from
  `AmazonLinux` to `amazon_linux_2`, so that it is similar to other
  supported Linux distros. This change was necessary, due to the
  fact that the `sys.os_version_major` variable is derived from
  it. However, the `AmazonLinux` class previously derived from
  `sys.flavor` is still defined for backwards compatibility.
  (ENT-10817)
- CFEngine now uses PCRE2 for regular expressions (ENT-10629)
- CFEngine processes no longer suffer from the "Invalid argument"
  issues when working with LMDB (ENT-11543)
- Changed cf-apache systemd unit to reload configuration gracefully
  (ENT-11526)
- Changed cf-execd's sleep behavior so it attempts to wake up at
  the beginning of every minute (ENT-11765)
- File copying now uses more efficient implementation on Linux
  platforms (CFE-4380)
- Fixed bug in double expansion of foreign list variables with namespaces
  (ENT-11923)
- Fixed bug related to failing backwards directory traversial when
  using forward slashes in path argument of the findfiles_up()
  policy function on Windows.
- Fixed bug where `default:sys.fqhost` contained many spaces when domain is
  set in body common control (CFE-4053)
- Fixed cf-support call to cf-promises to collect all classes and vars
  (CFE-4300)
- Fixed package promises with only promisers and no other attributes
  (CFE-4315, CFE-4398, CFE-4408)
- Modified package promise default. If platform_default is present
  use that package module. (CFE-4315)
- Ownership of symlinks is now handled properly (ENT-11235)
- SELinux no longer breaks exporting large reports as PDF (ENT-11154)
- The `arglist` attribute in the `commands` promises now preserves
  whitespaces in the arguments. Whitespaces are currently not preserved on
  Windows, or if the `useshell` attribute is set to anything other than
  `"noshell"`. (CFE-2724, CFE-4294)
- Trailing newline on insert_tree promisers no longer removes
  ending tag for select_xpath (CFE-3806)
- cf-agent has two new options --no-augments and
  --no-host-specific-data to skip loading augments
  (def.json or def_preferred.json) and host-specific
  data (host_specific.json), respectively (ENT-10792)
- cf-agent now has a new option --skip-bootstrap-service-start to
  skip starting CFEngine services during the bootstrap process
  (ENT-11932)
- cf-runalerts.service no longer exists, alerts are now
  periodically run by cf-reactor (ENT-11538)
- depth_search acting on a non-directory promiser now handles such
  file as if the promise didn't use depth_search. A warning is issued in this case.
  (ENT-8996)
- masterfiles-stage.sh now supports a new --check-only option
  (ENT-9386)
- Added new policy variable `sys.cfengine_roles`. This
  variable is a string list, containing "Reporting hub" if cf-hub
  exists (hub package installed), "Policy server" if the host is
  bootstrapped to itself (`policy_server` class defined), and just
  "Client" if none of the other options are true.
- Added 2 new classes correlating to the values in `sys.cfengine_roles`:
  `cfengine_reporting_hub` and `cfengine_client`.

## 3.23.0

- Added selinux policy to allow cf-hub to initiate scheduled reports
  (ENT-10696, ENT-9825)
- Added version_compare() policy function (CFE-3991)
- Bodies can now inherit attributes containing global variables
  (CFE-4254)
- Cached policy function results now take into account number of arguments
  and function name (CFE-4244)
- Fixed infinite loop on error bug while reading interface exception file
- Fixed inventoried policy release id when masterfiles-stage.sh deploys with cfbs
  (ENT-10832)
- Improved locale override in masterfiles stage scripts (ENT-10753)
- Improved syntax description for validjson() (ENT-9759)
- Made cf-support use coredumpctl for core analysis only when configured in kerenl.core_pattern
  (ENT-9985)
- Modified classesmatching() function to search parent bundles with inherit => true
  (ENT-5850)
- Moved expected location of ignore_interfaces.rx from $(sys.inputdir) to
  $(sys.workdir). If the file is found in $(sys.inputdir) but not in
  $(sys.workdir), we will still process it for backwards compatability,
  but issue a warning prompting the user to move it to the appropriate
  location. (ENT-9402)
- Only CFEngine processes are now killed as expired lock owners
  (CFE-3982)
- SELinux no longer blocks CFEngine deamons in reading security parameters from /proc/sys/kernel
  (ENT-9684)
- cf-hub is now allowed to use the TLS kernel module on
  SELinux-enabled systems (ENT-9727)
- cf_lock.lmdb is no longer restored from backup on
  every boot (CFE-3982)
- packagesmatching() and packageupdatesmatching() now look for the software
  inventory databases in the state directory and use them if found. This
  change enables the usage of these functions in standalone policy files
  without the demand for specifying the default package inventory attribute
  in body common control. However, you still need the default package
  inventory attribute specified in the policy framework for the software
  inventory databases to exist in the first place and to be maintained.
  (ENT-9083)
- CFEngine locks are now purged dynamically based on the local locks DB
  usage/size ranging from no purging (<=25% usage) (ENT-8201, CFE-2136, ENT-5898)
- `cf-check repair` now rotates DB files with high usage (>95%) (CFE-3374)
- Full LMDB files are now handled gracefully by moving them aside and using new
  empty LMDB files (ENT-8201)
- `cf-check repair` now supports the `--test-write` option to check if DBs can
  be written to as part of identifying DBs that need repairing (CFE-3375)
- `cf-check diagnose` now shows DB usage and a hint if rotation is required
- /usr/bin/getent is now attempted to be used if /bin/getent doesn't exist (CFE-4256)

## 3.22.0

- Added --help option to cf-support and aligned output with other
  components (ENT-9740)
- Added classes and vars to cf-support (CFE-4160)
- Added condition to runalerts service to require stamp directory
  (ENT-9711)
- Added mctp_socket class to selinux policy (ENT-10206)
- Added native core dump handling in cf-support for Solaris (ENT-9786)
- Added needed SELinux class lockdown for latest RHEL 9 hosts (ENT-9685)
- Adjusted cf-support for exotic/legacy POSIX systems (ENT-9340)
- Adjusted cf-support for hpux mktemp command (ENT-9786)
- Directories are now created with correct perms (CFE-4114)
- Variables & classes modules automatically tagged (ENT-7725)
- Changed bootstrap policy to preserve log level for debug, verbose,
  and info (CFE-4121)
- Created new policy function isreadable (ENT-9380)
- Enabled expireafter attribute for custom promise types (CFE-4083)
- Enabled install-time SELinux policy compiling (ENT-9685)
- Expired agents now terminate custom promise modules (CFE-4083)
- Fixed debug module expand logging for scalars (CFE-4122)
- Fixed syntax description of validjson() (ENT-9759)
- Prevented cf-support from searching more than 1 level for core files
  (ENT-9981)
- Started checking status of all cf- prefixed systemd services in
  cf-support (ENT-9804)
- validjson() no longer accepts trailing bogus data (CFE-4080)

## 3.21.0

- Added cf-support utility for generating support information
  (ENT-9037)
- Adjusted cf-check and package module code for empty updates list
  (ENT-9050)
- `$(this.promiser)` can now be used in `files` promise
  attributes `if`, `ifvarclass` and `unless`
  (CFE-2262, ENT-7008)
- Fixed storage promise for nfs on MacOS (CFE-4093)
- Fixed definition of `_low_ldt` class from cf-monitord (CFE-4022)
- Insertion of contents of a file with blank lines into
  another file with blank lines no longer results in
  mixed content (ENT-8788)
- Added suggestion to use a negative lookahead when non-convergent edits
  are attempted
  (CFE-192)
- Unresolved function calls that return scalar values
  are now considered OK for constraints expecting
  strings during syntax check (CFE-4094)
- cf-monitord now honors monitorfacility in body monitor control
  (ENT-4492)
- cf-serverd now periodically reloads its policy if it
  contains unresolved variables (e.g. $(sys.policy_hub)
  in `allowconnect`). (ENT-8456)
- cf-serverd now starts in the network-online.target on
  systemd-based systems (ENT-8456)
- edit_line bundles can now use the new
  $(edit.empty_before_use) variable mirroring the value of
  edit_defaults=>empty_before_use of the related files promise
  (ENT-5866)
- Package modules with unresolved variables in their
  names are now skipped in package queries (ENT-9377)
- Removed unsupported name_connect capability for udp_socket class
  (ENT-8824)
- `meta` attribute can now be used in custom promises (CFE-3440)
- Custom promise modules can now support the `action_policy`
  feature allowing promises of their custom types to be used
  in dry-run and simulation modes and in combination with
  `action_policy => "warn"`. (CFE-3433)
- Use of custom promise modules that don't fully specify
  protocol now results in warning (CFE-3433)
- Warnings are logged if levels of log messages from
  custom promise modules don't match results of their
  related promises (CFE-3433)
- Adjusted SELinux policy for RHEL 9 (ENT-8824)
- Fixed SELinux policy to allow hub to send emails (ENT-9557, ENT-9473)
- SELinux no longer breaks SQL queries with large result
  sets on RHEL 8 hubs (ENT-9496)
- Added SELinux LDAP port access for Mission Portal (ENT-9694)
- Allowed ciphers are now properly split into TLS 1.3
  cipher suites and ciphers used for TLS 1.2 and older
  (ENT-9018)
- Fixed git_cfbs_deploy_refspec in masterfiles_stage leaving temp dir
  (ENT-9039)

## 3.20.0

- `rxdirs` now defaults to "false". This means that the read permission
  bit no longer implies execute bit for directories, by default.
  Permission bits will be exactly as specified. To restore the old behavior
  you can still enable `rxdirs` explicitly. (CFE-951)
- `N` or `Ns` signal specs can now be used to sleep
  between signals sent by `processes` promises
  (CFE-2207, ENT-5899)
- Directories named .no-distrib are no longer copied from policy server
  (in bootstrap/failsafe) (ENT-8079)
- Files promises using content attribute or template method now create
  files by default unless `create => "false"` is specified. (CFE-3955,
  CFE-3916)
- template_method mustache and inline_mustache now create file in promiser,
  if template rendering was successfull and file does not exist. (ENT-4792)
- Added support for use of custom bodies in custom promise types
  (CFE-3574)
- Custom promise modules now never get promise data with unresolved variables
  (CFE-3434)
- Custom promises now use standard promise locking and support ifelapsed
  (CFE-3434)
- Enabled comment-attribute for custom promise types (CFE-3432)
- cf-secret encrypt now encrypts for localhost if no key or host is
  specified (CFE-3874)
- CFEngine now builds with OpenSSL 3 (ENT-8355)
- CFEngine now requires OpenSSL 1.0.0 or newer (ENT-8355)
- Moved Skipping loading of duplicate policy file messages from VERBOSE to DEBUG
  (CFE-3934)
- CFEngine processes now try to use getent if the builtin user/group
  info lookup fails (CFE-3937)
- No longer possible to undefine reserved hard classes (ENT-7718)
- Unspecified `rxdirs` now produces a warning (CFE-951)
- Fixed wrong use of log level in users promises log messages (CFE-3906)
- Fixed default for ignore_missing_bundles and ignore_missing_inputs
  The issue here was that these attributes should default to false,
  but when they are assigned with an unresolved variable, they
  would default to true. (ENT-8430)
- Added protocol 3 (cookie) to syntax description (ENT-8560)
- Moved errors from data_sysctlvalues from inform to verbose (CFE-3818)
- Fixed inconsistencies with methods promises and missing bundles
  Previously, methods promises acted differently depending on if
  you specify the bundle with usebundle or in the promiser string.
  This change removes the inconsistent checking which was only
  happening on promises with usebundle. It also ensures that
  the agent will abort if trying to use an undefined bundle,
  regardless of whether it was using promiser string or usebundle.
  This change, combined with the fix for ignore_missing_bundles
  and ignore_missing_inputs, allow you to use inputs and bundles
  conditionally (like we do for the enterprise federation policy)
  and still have the agent abort in the correct situations
  (when a bundle is actually missing and you haven't enabled
  ignore_missing_bundles). The downside is that there are some
  potential situations where undefined bundles would be detected
  earlier previously (both correctly and incorrectly). (ENT-8430)

## 3.19.0

- -N/--negate now prevents persistent classes from being defined
  (ENT-5886)
- `null` JSON value is now handled as empty data in augments/host-specific data
  (ENT-7434)
- Added a new common control attribute `system_log_level`
  For specifying the minimum log level required for log messages to
  go to the system log. (ENT-7594)
- Added support for cfbs managed policy set to masterfiles staging script (ENT-7709)
- Trailing commas can now be used in policy argument lists (CFE-3734)
- Changed cf-key option --print-digest to take an optional argument.
  cf-key now defaults to the public key file in workdir, if no argument
  is specified or an empty string is given as the argument. (CFE-3682)
- Cached functions are now always called inside promises with `iflapsed => "0"`
  (CFE-3754)
- Enabled `handle` attribute for custom promise types (CFE-3439)
- Enabled `depends_on` attribute for custom promise types (CFE-3438)
- Enabled `with` attribute for custom promise types (CFE-3441)
- Don't fail on new file creation when backups are enabled
  (CFE-3640)
- Extended `hostsseen()` policy function to return host keys (CFE-2546)
- Moved httpd.pid to root of httpd workdir (ENT-7966)
- Only real changes in files now produce info messages (CFE-3708)
- Reports with unexpanded variable references are now
  attempted to be held off until the reference expands
  (CFE-3776)
- Set apache umask to 0177 (ENT-7948)
- The --skip-bootstrap-policy-run option now skips the update policy
  (ENT-7500, ENT-7511)
- Added measurement names in cf-check dump (ENT-7452)
- Value of `$(with)` is now expanded even if it contains unresolved variable references
  (CFE-3776)
- cf-serverd now binds to both IPV6 and IPV4 if bindtointerface is unspecified
  (ENT-7362)
- cf-serverd now reports if fails to bind to all possible addresses/interfaces
  (ENT-7362)
- Fixed dbm_quick.c DBPrivRead() argument type (CFE-3737)
- Fixed dbm_tokyocab.c DBPrivRead() argument type (CFE-3737)
- Fixed crashes (Segfaults) in VariableIsSecret() (ENT-7678)
- Fixed crashes (Segfaults) in VariablesMatching() (ENT-7678)

## 3.18.0

- "No action for file" warning is no longer triggered when only
  `content => "something"` is used (CFE-3507)
- "source=promise_iteration" variables are no longer created in
  foreign bundles (ENT-7029)
- `cf-remote install` now supports the `--trust-keys` option for
  pre-establishing trust before bootstrap (CFE-3485)
- `cf-remote spawn` now supports adding new VMs to an existing group
  (CFE-3502)
- `rename => newname()` now supports relative paths (CFE-3537)
- `variables` and `classes` in CMDB and augments data now support
  `comment` fields (CFE-3638)
- Included custom promise type libraries in src tarball
  (CFE-3575, CFE-3576)
- --ignore-preferred-augments now sets a hard class; ignore_preferred_augments
  This class makes it easy for cf-agent / cf-execd policy to
  propagate the option to other binaries (CFE-3656)
- Added `classes` body support for custom promises (CFE-3437)
- Added a new --simulate=manifest-full mode
  New simulation mode that manifests all changed files as well as
  all other files evaluated by the agent run which were not skipped
  (by file selection rules) (CFE-3506)
- Added a new runagent_socket_allow_users body executor control attribute
  A new attribute that tells cf-execd to grant access to the
  runagent.socket to the specified users (ENT-6735)
- Added checks to return value from getpwuid & getgrgid (CFE-3521)
- Added int() policy function (CFE-3616)
- Added new command line option: --ignore-preferred-augments
  This option causes the agent to ignore def_preferred.json
  always reading def.json (old behavior) (CFE-3656)
- Added policy function type()
- Added policy function findfiles_up (CFE-3577)
- Added policy variable sys.os_name_human (CFE-3569)
- Added policy variable sys.os_version_major (CFE-3569)
- Added shell library for custom promise types with cp example
  (CFE-3516)
- Added string() policy function (CFE-3476)
- Augments data now supports meta information for classes
  and a new `variables` object for variables with meta information
  (CFE-3633)
- Fixed case where malformed input could trigger buffer overflow
  in policy function format (CFE-3525)
- Ability to report some number of lines from the END of a file by
  specifying number_of_lines as a negative number using printfile
  (CFE-3558)
- CFEngine binaries now load host specific data
  ($(sys.workdir)/data/host_specific.json) before Augments relative
  to policy entry (def.json) (ENT-6789)
- CFEngine processes are now properly identified in syslog on
  non-GNU/Linux systems (ENT-7100)
- CMDB data now supports meta information for classes
  and a new `variables` object for variables with meta information
  (CFE-3633)
- Changed custom promise type interpreter attribute to be optional
  (CFE-3562)
- Changed files promise repaired log level to verbose (CFE-3631)
- Changed log message about whitespace in class expressions to be error
  (CFE-3560)
- Changed sys var attribute names:
  "OS type" was changed to "Kernel", "OS kernel" was changed to "Kernel Release"
  (ENT-6551)
- Clarified error log message about untrusted state directory not being private
  (CFE-3599)
- Classes from augments are now defined as soft classes
  within the `namespace` context instead of being hard
  classes. Policies using classes from augments in policy files
  using namespaces need to be updated to refer to the augments
  classes with the `default:` prefix (CFE-3632)
- Custom promise modules using JSON protocol now support data attributes
  (CFE-3654)
- Custom promise modules using JSON protocol now support slist attributes
  (CFE-3444)
- Custom promise types can now be declared in separate files (CFE-3510)
- Custom promise types can now report back result classes (CFE-3515)
- Custom promises now support the `log_level` attribute (CFE-3436)
- Each custom promise module is now only spawned once
  and handles all promises of its matching type(s) (CFE-3572)
- Early failing custom promises now properly set result classes
  (CFE-3645)
- Exit code from remote agent run is now sent to cf-runagent (CFE-3594)
- Fixed crash when attempting to put methods promises in bundles
  which are not agent bundles (CFE-3672)
- Fixed memory leak in package module code (ENT-5752)
- Fixed memory leak in simulate mode (CFE-3498)
- Fixed some more sign-compare warnings (CFE-3415)
- Improved error handling / logging of data received from promise module
- Improved log messages for commands promise outcomes and return codes
  (CFE-3604)
- Made errors about failed validation of custom promises less noisy
- Namespace and bundle can now be specified in augments and CMDB data
  (CFE-3633)
- New observations of root owned SETUID programs moved from WARN to NOTICE
  (ENT-6519)
- Policy function format() no longer truncates strings lager than 4KiB
  (CFE-2686)
- Policy function storejson() no longer truncates strings lager
  than 4096 bytes (CFE-2507)
- Promise type is now sent to custom promise modules (CFE-3563)
- Reduced the noise caused by packages promises being skipped in
  evaluation passes 2 and 3 (ENT-6553)
- Set Filedescriptor Limit to a more practial Size (CFE-3625)
- Stopped emitting warning and recording result when observing new
  SETGID files (ENT-6750)
- Stopped updating files promise result with WARN (notkept) when
  setuid files are encountered (ENT-6519)
- Unspecified `files` constraints no longer cause `_kept` classes
  to be defined (CFE-3578)
- Updated contrib/masterfiles-stage scripts and instructions to be
  accurate (ENT-6165)
- Fixed using a custom promise module with two different
  interpreters results in an error (CFE-3572) - Value of the
  `files_single_copy` body control attribute is now logged in
  verbose logging mode (CFE-3622)
- Variables and classes defined in cmdb cannot be re-defined in
  augments (ENT-7079)
- Verbose log now contains comments associated with `vars` and
  `classes` promises (CFE-2442, CFE-2443)
- cf-agent now checks that promise module logs expected errors
- cf-agent now sends correct information to promise module in header
- cf-execd now executes cf-agent for "localhost" requests via the
  runagent.socket (ENT-7090)
- cf-execd now handles requests to run cf-runagent on given hosts
  (ENT-6182)
- cf-execd now runs cf-agent from a child process instead of a
  thread on POSIX systems (ENT-6182)
- cf-runagent now exits with a code reflecting remote agent run
  status(es) (CFE-3594)
- cf-serverd now supports systemd-based socket activation
- def_preferred.json is now used instead of def.json if it exists
  Old clients will ignore it, allowing you to have 2
  versions of the augments file, 1 for compatibility
  with old clients, and 1 for utilizing the new feautres.
  (CFE-3656)
- files_single_copy body agent control attribute can now be an
  empty list (CFE-3622)
- files_single_copy no longer treats paths of copied files as
  regular expressions (CFE-3621)
- log_level is properly sent to promise modules in both validate
  and evaluate requests (CFE-3564)
- unless can now be used with custom promise types (CFE-3431)
- CFEngine processes now reuse log facility from previous run for
  early logging before policy is loaded (ENT-6955)

## 3.17.0

- cf-agent can now simulate the changes done to files in a chroot, printing
  diff or manifest information about what it would do in a normal evaluation.
  Use the new command line option: `--simulate=diff` or `--simulate=manifest`.
  Please note that only files and packages promises are simulated currently.
- Custom promise types can now be added using promise modules (CFE-3273)
- cf-monitord now uses `/proc/net/*` files to get network information if
  possible (CFE-2945)
- Added new policy function execresult_as_data() (CFE-3315)
- Added optional argument to execresult for choosing between stdout and
  stderr (CFE-3108)
- Outcome classes are now always defined for promiser in files promises
  (CFE-3369)
- and(), or(), not() now return boolean and cannot be used directly in
  slist vars. They can now be used in other places where a boolean is
  expected. (Most notably and / or promise attributes). The return values
  can be converted to strings using concat(), if necessary (CFE-3470)
- Backgrounded commands are now correctly executed in the child process
  (CFE-3379)
- CFEngine policy bodies can now be completely empty
- Directory listings in files changes monitoring are now only updated
  when there is a change (CFE-3382)
- Promises with `action => bg()` no longer break reporting data (ENT-6042)
- Spaces inside square brackets (slist/data index) are now allowed in
  class expressions (CFE-3320)
- Variables specifying data/list names in @() references are now expanded
  (CFE-2434)
- Added warnings when trying to use {{.}} to expand containers in mustache
  templates (CFE-3457, CFE-3489)
- Limited unqualified host and domain name to 511 characters (CFE-3409)
- AVCs are no longer produced for CFEngine processes accessing /proc/net
  (CFE-3240)
- Fixed how we check for `--cols` argument to `ps` (ENT-6098)
- Fixed a memory leak in users promises
- Fixed a small memory leak in cf-promises (CFE-3461)
- Fixed expansion of variables in data/list references (CFE-3299)

## 3.16.0

- Added `cf-secret` binary for host-specific encryption (CFE-2613)
- `cf-check diagnose --test-write` can now be used to test writing
  into LMDB files (ENT-4484)
- `if` constraint now works in combination with class contexts
  (CFE-2615)
- Added $(sys.cf_version_release) variable (ENT-5348)
- Added new macros to parser: else, maximum_version, between_versions,
  before_version, at_version and after_version. Version macros now
  accept single digits (CFE-3198)
- Added cf-postgres requirement to cf-apache and cf-hub systemd units
  (ENT-5125)
- Added files promise content attribute (CFE-3276)
- Added string_trim() policy function (CFE-3074)
- Added warning if CSV parser parses nothing from non-empty file
  (CFE-3256)
- All changes made by `files` promises are now reported. Also,
  directory and file creations are now properly reported as `info`
  messages. And failures in edit_xml result in promises marked as
  failed not interrupted. Purged dirs and files are reported as
  repaired (ENT-5291, CFE-3260)
- Bootstrap to loopback interface is now allowed, with a warning
  (CFE-3304)
- Client initiated reporting was fixed on RHEL 8.1 (ENT-5415)
- Fixed rare crashing bug when parsing zombie entries in ps output. The
  problem was only ever observed on AIX, but could theoretically happen
  on any platform depending on exact libc behavior. (ENT-5329)
- Fixed an issue causing duplicate entries in sys.interfaces, and
  sys.hardware. (CFE-3046)
- Fixed ifelse() to return fallback in case of unresolved variables
  (ENT-4653)
- Fixed locking of promises using log_repaired / log_string with
  timestamps (CFE-3376)
- Fixed memory leak in handling of inline JSON in policy evaluation
- Fixed memory leak in readlist functions (CFE-3263)
- Fixed race condition when multiple agents are acquiring critical
  section locks simultaneously (CFE-3361)
- Fixed selection of standard_services when used from non-default
  namespace (ENT-5406)
- Fixed service status cfengine3 on systemd managed hosts (ENT-5528)
- Fixed some memory leaks and crashes in policy evaluation (CFE-3263)
- Improved error message for invalid body attribute names (CFE-3273)
- Improved management of secondary groups to avoid intermediary state
  failures (ENT-3710)
- LMDB files are now created with correct permissions (ENT-5986)
- Log messages about broken Mustache templates are now errors (CFE-3263)
- Made classfiltercsv() fail properly on invalid class expression index
- Measurements promises with no match no longer produce errors
  (ENT-5171)
- Moved error reading file in countlinesmatching() from verbose to error
  (CFE-3234)
- Added new data validation policy functions validdata() and validjson()
  (CFE-2898)
- New version checking convenience policy functions (CFE-3197)
  Added the following policy functions to check against local CFEngine version:
  - cf_version_maximum()
  - cf_version_minimum()
  - cf_version_after()
  - cf_version_before()
  - cf_version_at()
  - cf_version_between()
- Removed (USE AT YOUR OWN RISK) from cf-key help menu for -x (ENT-5090)
- Rewrote helloworld.cf to use files promises content attribute
  (CFE-3276)
- The outcome classes are now defined for the top-level directory when
  `include_basedir` is `false` (ENT-5291)
- Variable references with nested parentheses no longer cause errors
  (CFE-3242)
- cf-check: Added a more user friendly message when trying to print
  unknown binary data (ENT-5234)
- cf-check: Added data validation for cf_lastseen.lmdb (CFE-2988)
- cf-check: Added nice printing for nova_agent_executions.lmdb
  (ENT-5234)
- cf-check: Added validation for timestamps in cf_lock.lmdb (CFE-2988)
- cf-check: Added validation for timestamps in lastseen.lmdb (CFE-2988)
- cf-check: Fixed issue causing repair to target the wrong database file
  (ENT-5309)
- cf-check: Symlinked LMDB databases are now preserved in repair
  Performs diagnosis and repair on symlink target instead of symlink.
  Repaired files / copies are placed alongside symlink target.
  In some cases, the symlink target is deleted to repair a corrupt
  database, and the symlink is left as a broken symlink. This is
  handled gracefully by the agent, it will be recreated. Broken
  symlinks are now detected as an acceptable condition in diagnose,
  it won't try to repair them or delete them. (ENT-5162)
- storage promises managing nfs mounts should now correctly mount
  after editing fstab entries

## 3.15.0

- New policy function basename() added (CFE-3196)
- Added read_module_protocol() policy function
  This function reads module protocol from a file, and can be used
  for caching the results of commands modules. (CFE-2973)
- The @ character is now allowed in the key of classic arrays defined
  by the module protocol (CFE-3099)
- nth() policy function now supports negative indices (CFE-3194)
- Fixed .xy floating point numbers parsing in eval() (CFE-2762)
- Added inform constraint to commands promises, to allow suppression of
  INFO log messages (CFE-2973)
- Changed unless constraint to be more consistent with if
  For any situation where if would NOT skip a promise, unless
  will cause the promise to be skipped. When there are
  unresolved variables / function calls, if will skip, unless
  will NOT skip. (CFE-3160)
- Default minimum allowed TLS version is now 1.1 (ENT-4616)
- Network protocol version 2 is now called "tls"
  "tls" or "2" can be used in places where you specify network
  protocol. Log messages were altered, to show "tls" instead of
  "latest". (ENT-4406)
- Introduced protocol version 3 - "cookie"
  This protocol is identical to version 2 ("tls"),
  except it allows the enterprise reporting hub to send
  the COOKIE command to enterprise hosts. This command is used for
  detecting hosts using duplicate identities. Protocol version "latest"
  now points to version 3. For community installations, it should not
  make a difference, policy servers will not send this command. The only
  visible difference is the new version number (in logs and policy).
  (ENT-4406)
- Package modules now hit network when package cache is first initialized
  (CFE-3094)
- Fixed promise skipping bug in unless (CFE-2689)
- Fixed error message for unexpanded variables in function calls in unless
  (CFE-2689)
- Prevented buffer overflow when policy variable names are longer than
  1024 bytes
- Zero bytes in class guards no longer cause crashes (CFE-3028)
- Fixed bug in ps parsing on OpenBSD / NetBSD causing bootstrap to fail
- Fixed crash in policy/JSON parsing of numbers with too many decimal
  points (CFE-3138)
- copy_from without preserve now respects destination mode (ENT-4016)
- Removed stime_range and ttime_range constraints from promise hash
  (ENT-4921)
- Fixed promise result when using process_stop in processes type promises
  (ENT-4988)
- cf-execd now sends SIGKILL to the agent process in case of
  agent_expireafter, after attempting SIGINT and SIGTERM (CFE-2664)
- cf-serverd now tries to accept connection multiple times (CFE-3066)
- Fixed multiple measurements tracking growth of same file (ENT-4814)
- Set create permissions of monitord files in state directory to 0600
  0600 matches the permissions enforced by policy.
  Affected files:
  - `state/cf_incoming.*`
  - `state/cf_outgoing.*`
  - `state/cf_users`
  - `state/env_data`

  (ENT-4863)

- Clarified descriptions of io_writtendata and io_readdata (ENT-5127)
- Clarified log message about process_count and restart_class being used
  concurrently (CFE-208)
- Agent runs that hit abortclasses now record results (ENT-2471)
- An ID of rhel in os-release file will now define both rhel and redhat
  classes (CFE-3140)
- Version specific distro classes are now collected by default in
  Enterprise (ENT-4752)
- redhat_8 and redhat_8_0 are now defined on RHEL 8 (CFE-3140)
- Added derived-from-file tag to hard classes based on /etc/redhat-release
  (CFE-3140)
- Added sys.bootstrap_id policy variable containing the ID from
  /var/cfengine/bootstrap_id.dat, if present (CFE-2977)
- sys.interfaces now contains interfaces even when they only have
  IPv6 addresses (ENT-4858)
- IPv6-only interfaces added to `sys.hardware_(addresses,mac)` (CFE-3164)
- IPv6 addresses are now added to policy variable sys.ip_addresses
  (CFE-682)
- IPv6 addresses now respect ignored_interfaces.rx (CFE-3156)
- Hostname now allowed in bindtoaddress (CFE-3190)
- Fixed issue when removing comments from files in various policy functions
  This also fixes many erroneous occurences of the error message
  mentioning:

  [...] because it legally matches nothing

  (A warning can still appear if a comment regex actually matches nothing).
  Also made this comment removing logic faster.
  Affected functions include:
  - readstringlist()
  - readintlist()
  - readreallist()
  - peers()
  - peerleader()
  - peerleaders()
  - data_readstringarray()
  - data_readstringarrayidx()
  - data_expand()
  - readstringarray()
  - readstringarrayidx()
  - readintarray()
  - readrealarray()
  - parsestringarray()
  - parsestringarrayidx()
  - parseintarray()
  - parserealarray()

  (CFE-3188, ENT-5019)

- Fixed memory leak in JSON / env file parsing (CFE-3210)
- Fixed memory leak in handling of nfs / fstab (CFE-3210)
- Fixed memory leak in string_replace() and regex_replace() (CFE-3210)
- Fixed memory leak when using with constraint (CFE-3210)
- Fixed minor memory leak in policy evaluation (CFE-3210)
- Fixed small memory leak in SQL database promises (CFE-3210)
- Received SIGBUS now triggers a repair of local DBs (CFE-3127)
- Corrupted LMDB files are now automatically repaired (CFE-3127)
- Keys in the lock database, cf_lock.lmdb, are now human-readable
  (CFE-2596)
- Local databases now use synchronous access on AIX and Solaris (ENT-4002)
- Report corrupted local database with a critical log message (CFE-2469)
- Local DB errors are now logged with the particular DB file path (CFE-2469)
- cf-check: repair now preserves readable data in corrupted LMDB files
  (CFE-3127)
- cf-check: --dump option was added to the backup command
- cf-check: Added --no-fork to diagnose command (CFE-3145)
- cf-check: Added -M manpage option and other common options (CFE-3082)
- cf-check: No DB files in state dir now causes errors
- cf-check: dump command now dumps DB contents to JSON5 (CFE-3126)
- cf-check: help command can now take a topic as argument

## 3.14.0

- A bootstrap_id.dat file is now generated on every bootstrap
  (CFE-2977)
- Added options to cf-net to set minimum TLS version and ciphers
  (ENT-4617)
- Added --no-truncate option to cf-key
  This option, when used with --show-hosts changes the formatting
  of the output. Instead of padding and truncating each of the
  fields, they are printed, in full, with no padding, and separated
  by a single tab character. The output is not as pretty, but should
  be more useful for parsing by other scripts / tooling. (CFE-3036)
- Added a new option --skip-db-check to agent and execd
  This option allows you to enable/disable database (LMDB) consistency
  checks. Initially it is disabled by default, but this will likely
  change. (CFE-2893)
- Added a new utility to contrib: cf-remote
  cf-remote is a python + fabric tool to log in to remote hosts
  you have ssh access to. It can be used to download, transfer,
  and install CFEngine packages as well as bootstrapping etc.
  At this point, cf-remote is not packaged with CFEngine, but can be
  installed separately from:
  https://github.com/cfengine/cf-remote
  (CFE-2889)
- Added derived-from-file tags to hard classes based on /etc/debian_version and /etc/issue
- Added a function to filter CSV-files by classes (CFE-2768)
- Forward slash is now an allowed character in module protocol commands
  (CFE-2478)
- Augments files can now handle class expressions by appending `::`
  A condition in an augments file is treated as a class expression
  if it ends in ::. Otherwise it is treated as a regular
  expression. (CFE-2954)
- Internal ps command can now handle longer usernames (CFE-2951)
- Made copylink_pattern honor `/../` in copy source (CFE-2960)
- CSV parser now supports CRLF inside double quotes (ENT-4504)
- Added an error when a function defining a variables still fails at
  pass 3 (CFE-2983)
- Documented cf-execd and cf-serverd response to SIGHUP in manpage
  (CFE-2853)
- Stopped trimming leading zeroes in ubuntu minor version class
  The old version detection logic (using /etc/debian_version) was
  converting the minor version part to an integer, defining
  ubuntu_18_4 instead of ubuntu_18_04. The new platform detection
  (based on /etc/os-release) defines ubuntu_18_04. Since both old
  and new methods are running to maximize compatibility, both
  ubuntu_18_04 and ubuntu_18_4 were defined.
  This commit ensures that the old detection logic treats the
  minor version (the 04 part) as a string, not an integer. The
  change is specific to Ubuntu, and should affect Ubuntu 18.04,
  16.04, 14.04, etc. (CFE-2882)
- SUID log permissions are now properly enforced (CFE-2919)
- Agent log file names are now always lowercase
- Extended module with file protocol for data (CFE-3050)
- Fixed a segfault in `cf-promises -p json-full` (CFE-3019)
- Added cf-key help output to indicate ability to delete by key digest
  (CFE-2997)
- Fixed disabling TLS 1.0 (CFE-3068)
- Fixed growing memory footprint of daemons (CFE-3032)
- Fixed the log message about setting collect_window (ENT-4238)
- Fixed the log message when parsing TIME in `ps` output fails
- Fixed parsing of YAML values starting with numbers (CFE-2033)
- Fixed sys.flavor on AIX (ENT-3970)
- Fixed 6 cases where promises could get the wrong outcome
  All cases were related to error handling and detected using
  static code analysis (LGTM). They were limited to cf-monitord
  and cf-agent (guest_environments and files promise types). Due
  to a programming mistake, promise results would sometimes be
  overwritten with `skipped` outcome. Keeping the previous
  value or making the promises `not kept` is expected behavior.
  Added a query to our CI (LGTM) to make sure we catch this error
  on new contributions.
- Fixed an issue while parsing ps output on AIX (ENT-4295)
- Fixed a memory leak in filesexist function (ENT-4313)
- Fixed a memory leak in mustache rendering (ENT-4313)
- Fixed a memory leak in: differences(), intersection(), unique()
  (ENT-4586)
- Fixed a segfault in policy parser (ENT-4022)
- Connection cache is now global (CFE-2678)
- Increased verbosity of AcquireLock permission error (ENT-4395)
- Message about invalid class characters from module protocol moved to VERBOSE
  (CFE-2887, CFE-3008)
- Prevented buffer overflows in cf-monitord data parsing
- Private keys generated by cf-key are no longer encrypted
  Private key files encrypted with a broken cipher and default
  hard coded passphrase provide no real security, and is only an
  inconvenience. Maybe it was intended to add a password prompt
  later, but it's been 10 years now, and the cipher and passphrase
  remain untouched. The function which reads keys still supports
  both encrypted and unencrypted keys, it will decrypt if necessary.
- Reduce SSL/TLS shutdowns on bad networks (CFE-3023)
- Removed programming error in handling of process_count body
  Previously, having a failing function call inside in_range_define
  or out_of_range_define would cause a programming error when
  trying to define that as a class. Fixed it by detecting the
  case, printing a normal error, and skipping defining the class. (CFE-2067)
- Set policy->release_id to "failsafe"/"bootstrap" when running failsafe.cf
  (CFE-3031)
- Switched permissions of various temporary files in state to 0600
  These files were created with 0644 permissions, and then
  repaired in policy. However, since they are deleted / recreated
  periodically, it causes INFO noise. Safer and better user
  experience to create them with restricted permissions to
  begin with.
  Affected files:
  - `$(sys.statedir)/cf_procs`
  - `$(sys.statedir)/cf_rootprocs`
  - `$(sys.statedir)/cf_otherprocs`

  (ENT-4601)

- string_split segments are now truncated to 1024 bytes instead of
  crashing (CFE-3047)
- Unresolved function calls in process_select body are now skipped
  Function calls which always fail, like getuid("nosuchuser"), are
  never resolved. Previously this would cause a programming error,
  since the body is expected to have a list of strings, not
  unresolved function calls.
  The function calls are silently skipped (with a verbose message)
  as this matches the behavior of calling the functions in a vars
  promise, and using that as a body parameter.
  (CFE-1968)
- cf-check directories can now be controlled from ENV vars (CFE-2994)
- cf-check: Added backup command
  This command copies lmdb files to a timestamped backup directory.
  (ENT-4064)
- cf-check: diagnose and backup now use state directory by default
  (ENT-4064)

## 3.13.0

- Added support for TLS 1.3 and its ciphersuites
- Added `feature` hard classes for supported TLS versions
  Different versions of TLS are supported depending on what version
  of OpenSSL CFEngine was compiled and linked with. Newly added
  feature hard classes bring that information to the
  policy. Classes like these are now defined (for supported
  versions of TLS):
  feature_tlssource=agent,hardclass
  feature_tls_1 source=agent,hardclass
  feature_tls_1_0 source=agent,hardclass
  feature_tls_1_1 source=agent,hardclass
  feature_tls_1_2 source=agent,hardclass
  feature_tls_1_3 source=agent,hardclass
- Added a new variable $(sys.default_policy_path)
  A new sys variable that provides the path of the default policy
  file evaluated when no file is specified with the `-f` option.
- Added an option to skip the initial policy run on bootstrap
  In some cases it may not be desired to run the policy as the last
  step of the bootstrap. This can be done with the new
  `--skip-bootstrap-policy-run` option for cf-agent. (CFE-2826)
- Trigger promises.cf as the last step of bootstrap (CFE-2826)
- Added support for overriding the package module`s path (CFE-2103)
- Added support for setting package module interpreter (CFE-2880)
- Added --log-level option to all components
  This allows you to specify any log level (info, verbose, debug etc.).
  It is also less strict, allowing different spelling. As an example,
  --log-level i, --log-level INFO, --log-level inform are all the same.
- Added a new binary: cf-check
  Corrupt local databases (LMDB) continues to be a problem.
  cf-check will be used to diagnose and remediate problems
  with corrupt databases. It is a standalone binary, which
  doesn't evaluate policy or use the local databases, thus
  it can be used in situations where the other binaries
  like cf-agent would hang.
  cf-check replaces our lmdb database dumper, lmdump.
  cf-check lmdump or symlinking / renaming it to lmdump
  will make cf-check have the exact same behavior as lmdump.
  cf-check will include much more functionality in the future
  and some of the code will be added to other binaries,
  for example to do health checks of databases on startup.
  (ENT-4064)
- Added function string_replace. (CFE-2850)
- Allow dots in variable identifiers with no such bundle
  As described and discussed in CFE-1915, defining remote variables
  (injecting variables into remote bundles) is dangerous and must
  be blocked. However, using a dot-separated common prefix for
  variables raises no security concerns and can be considered
  valid. (CFE-1915)
- Allow requiring TLS 1.3 as the minimum version
- Apply augments after vars, classes and inputs in def.json
  (CFE-2741, CFE-2844)
- Bundle name is now part of the log message when aborting a bundle
  (CFE-2793)
- Class names set by module protocol are automatically canonified
  (CFE-2877, CFE-2887)
- Classes failsafe_fallback and bootstrap_mode are now reported by default
- Correct log level for `data_readstringarray*` (CFE-2922)
- Do not iterate over JSON objects` properties in mustache (CFE-2125)
- Do not render templates when passed invalid data (CFE-2194)
- Eliminated error messages caused by attempting to kill expired processes
  (CFE-2824)
- Fixed cf-runalerts systemd unit conditions so the service will run
  (ENT-3929)
- Fixed the off-by-one error in cf-runagent background process spawning
  (CFE-2873)
- Fixed OOB read / heap buffer overflow in evaluator (ENT-4136)
- Fixed a memory leak which occured when reloading RSA keys from disk
  (CFE-2857)
- Fixed a memory leak which occured while loading augments files
  (CFE-2913)
- Fixed an issue with splay time in cf-execd (CFE-2931)
- Fixed error handling and memory leak in cf-key (CFE-2918)
- Fixed memory leak in JSON to policy conversion (ENT-4136)
- Fixed memory leak in lmdb cleanup (CFE-2918)
- Fixed memory leaks in cf-agent during bootstrap (CFE-2918)
- Fixed memory leaks in variablesmatching() and findfiles() (CFE-2918)
- Fixed missing class with mustache templates in warn_only mode
  (CFE-2600)
- Fixed small memory leak in cf-serverd (CFE-2918)
- Fixed small memory leak in cf-upgrade (ENT-4136)
- Fixed small memory leaks of environment variable strings (CFE-2918)
- LMDB database dumper, lmdump, no longer creates empty databases
  (ENT-4064)
- Made variablesmatching functions treat args regexes more correctly
  variablesmatching() and variablesmatching_as_data() no longer
  use string comparison to find matches. The documentation is clear;
  arguments should be regexes (so you have to escape special
  characters).

  ```
  bundle agent main
  {
    vars:
      "myvar"
        string => "example",
        meta => {"os[linux]"};
      "matches" slist => variablesmatching(".\*", "os\[linux\]");

    reports:
      "Match: $(matches)";
  }
  ```

  The above example is correct. If you don't escape the brackets
  like above, it will no longer work. (You probably shouldn't use
  brackets in tags anyway).

- Prevent the init script from managing processes inside containers
  (ENT-3800)
- Read mustache-rendered files in text mode when comparing digest
  (ENT-2526)
- Reload persistent classes on config reload in cf-execd and cf-serverd
  (CFE-2857)
- Fixed issue with @if macro failing when it is on the first line.
  (CFE-2817)
- Fixed issue with cf-agent intermittently hanging on windows
  sometimes (ENT-3756)
- Change GIT_BRANCH to GIT_REFSPEC and remove Design Center vars
  (ENT-4023)
- os-release file is now used for hard classes and sys.flavor on all linuxes
  This will improve platform detection on newer operating systems where
  /etc/os-release (or /usr/lib/os-release) is present.
  A hard class will be set for the value of the ID key (canonified with
  underscores), if it exists. If both ID and VERSION_ID exist, multiple
  hard classes will be set for all parts of the version number. The
  special variable sys.flavor will also be set by determining major
  version from VERSION_ID.
  Example os-release file:
  ```
  ID=coreos
  VERSION_ID=1185.3.0
  ```
  For the example above, sys.flavor will be coreos_1185 and 4 hard
  classes will be set; coreos_1185_3_0, coreos_1185_3, coreos_1185,
  and coreos.
  For backwards compatibility, older distribution specific logic is still
  executed and may overwrite sys.flavor and define hard classes as before.
- Refactor use of atexit to use custom cleanup function instead. On Windows
  atexit() unloads DLLs before and/or during atexit functions being called
  which causes bad behavior. (ENT-3756)

## 3.12.0b1

New Features:

- Added a --key-type option to specify RSA key size to cf-key
- New hash_to_int policy function (CFE-2733)
- Issue a warning on ignored locking attributes (CFE-2748)
- Added IPv6 hard classes with the `ipv6_` prefix (CFE-2310)
- Introduce "missing_ok" attribute in body copy_from
  This allows to ignore missing sources in file copy operations (CFE-2365)
- Enabled Xen hypervisor detection on all x86 platforms (CFE-2203)
- Added sys.policy_entry variables (CFE-2572)
- Added inline_mustache template method (CFE-1846)
- New component cf-net (cf-net is a CLI for the CFEngine network protocol,
  useful for debugging, testing etc) and accompanying policy variable
  sys.cf_net containing path to cf-net binary

Changes:

- Load augments at the end of context discovery
  This means that classes defined as part of the context discovery
  (e.g. `am_policy_hub` and `policy_server`) can be used in the
  augments (CFE-2482)
- Open measurements promise type from enterprise cf-monitord
- Transform filesexist() into a collecting function (CFE-2744)
- Load process table when actually needed for a processes promise (ENT-2536)
- Ignore commented out entries in fstab when edit_fstab is true (CFE-2198)
- Do not move obstructions in warn policy mode (CFE-2740)
- Made the max bytes parameter to file reading functions optional (CFE-2656)
- Do not tag large volatile variables for inventory
  sys.interfaces_data, sys.inet and sys.inet6 are commonly larger than the
  maximum data size allowed to be collected by cf-hub. Data larger than 1k
  is truncated. Instead of reporting truncated data this change stops
  tagging the variable so that it will not be collected to the Enterprise
  hub and will not be available in Mission Portal. (ENT-3483)
- cf-execd now re-parses augments on policy reload (CFE-2406)
- Improved misleading verbose message
  For constraints if/ifvarclass/unless, we now print the whole rval of the constraint.
  Previously the message was just "skipping variable because ifvarclass is not defined" while the variable itself was defined.
  Old message example:
  ```
  verbose: Skipping promise `mailto` because `if`/`ifvarclass` is not defined
  ```
  Changed to:
  ```
  verbose: Skipping promise `mailto` because `ifvarclass => not(isvariable("mailto"))` is not defined
  ```
  (CFE-2697)
- Promise comments for file changes moved to verbose (ENT-3414)
- Suppress output from systemctl based restart of services in
  bootstrap/failsafe (CFE-1459)
- Parser can now handle larger inbut buffers (CFE-1886)
- Improved logging of ACL errors (ENT-3455)
- cf-execd systemd service now only kills cf-execd itself (ENT-3395)
- Load multiple augments from "augments" string array in def.json
  (CFE-2084)
- Improved support for Alpine Linux
- Set the exit value when running cf-key
  When running cf-key to generate new keys, set the exit value of the
  program to be 0 on success and 1 on failure. This makes it easier to
  catch errors during setup of a new machine.
  Change the default behavior of the program to not write anything to stdout,
  opting to use the Log() function which can write to stdout and will also
  allow output to be sent to syslog.
  Add a --inform option to set the global log level to LOG_LEVEL_INFO.
  Change the permissions of the randseed file to 600 and catch the exception
  if the chmod call fails.
- Properly reverse-resolve DNS names longer than 63 chars (ENT-3379)
- Properly redirect init script to systemd on debian systems (ENT-3326)

Bug fixes:

- Disallow modifications of variables from a remote bundle (CFE-1915)
- Speedup evalution by not copying variables table when expanding a promise
  (CFE-2524)
- Resolve subkey conflicts when converting to JSON
  Whenever there is a conflict of array variable definitions prefer
  the container subkeys over simple values when converting to JSON
  (CFE-2536)
- Do not ignore meta promises in server bundles (CFE-2066)
- Added a debug log for computed class in splayclass
- Don't error when calling isexecutable on broken link (CFE-741)
- Fixed segfault when no show-evaluated-vars/classes is specified
- Fixed memory leak in cf-execd, triggered when sending email failed (CFE-2712)
- Fixed IPv6 parsing to be un-reversed (CFE-2580)
- Fixed bug preventing permission changes on Unix sockets (CFE-1782)
- Fixed storage mount promise when existing mountpoint has a similar path
  (CFE-1960)
- Fixed segfault when cf-promises -p is called against a file with syntax
  errors (CFE-2696)
- Fixed rare cf-execd hang (CFE-2719)
- Fixed mergedata segfault when called on a non-container (CFE-2704)
- Do not segfault if policy_server.dat only contains whitespaces and/or line breaks
- Fixed segfault on JSON policy files with no bundles and bodies (CFE-2754)

## 3.11.0

New Features:

- Allow function calls in promiser using universal "with" attribute
  (CFE-1092)
- Added example of with attribute (CFE-1092)
- Detect Amazon Linux and set "AmazonLinux" hard class and
  sys.flavour variable
- New sysctlvalue() and data_sysctlvalues() functions from /proc/sys
  (CFE-2513)
- readdata() also auto-detects .yml files as YAML
- Added support for ENV and CSV file parsing (CFE-1881)
- Added vars and classes for CoreOS (ENT-3043)
- cf-agent: implement --show-evaluated-vars and --show-evaluated-classes
- Support for custom ports and host names as policy hub (CFE-953)
- cf-promises: allows --show-vars and --show-classes to take an optional filter
- Added a new tool: cf-net. cf-net is a CLI for the CFEngine
  network protocol, useful for debugging, testing etc (CFE-2493)
- New policy variable: sys.cf_net contains path to cf-net binary
- Read /etc/os-release into sys.os_release (CFE-1881)

Changes:

- readintlist() now prints an error if the
  file contains real numbers, not integers, and aborts; previously it was
  printing an info-level error message, was half-reading an integer out of
  the real, and was continuing successfully.
- "make tar-package" should create a tarball with the contents of
  "make install" (ENT-3041)
- Allow opening symlinks owned by root or by the current user
  (CFE-2516)
- Change warning message about depth_search on a non directory to
  DEBUG level
- Ensure synchronous start and stop with systmectl (ENT-2841)
- Put logs in /var/log and PID files in /var/run when using FHS layout
  (CFE-2449)
- readstringlist(), readintlist(), readreallist(): Print
  verbose instead of error message if file can not be read
- cf-serverd: Do not close connection when file does not exist
  (CFE-2532)
- policy_server.dat now appends a newline and supports host & port
- Allow string_head and string_tail to take negative arguments
- getvalues(inexistent_var) returns an empty list.
  Restores 3.7.x and earlier behaviour. (CFE-2479)
- Partially restore old getvalues(array) behaviour
  Bugfix: getvalues() now behaves correctly for old CFEngine
  arrays of depth 1
  Behaviour change: it always returns a list now. Even when v is a simple
  string (i.e. not an iterable) it will return an slist with one element:
  the value of the string variable.
  Known issues: getvalues() still misbehaves with double-indexed arrays
  (see CFE-2504, CFE-2536)
- The source version of CFEngine now installs binaries into
  bin folder instead of sbin folder (CFE-2448)
- Don't error during dry run for proposed execution (CFE-2561)
- Print verbose instead of error message when readfile() fails (CFE-2512)
- cf-serverd: Auto configure max open files ulimit according to
  maxconnections (CFE-2575)
- Made the max bytes parameter to file reading functions optional.
  Affects readfile(), readenvfile(), readcsv()

Bug fixes:

- Fixed insert_lines related memory corruption (CFE-2520)
- Prevent LMDB assertion on AIX by ensuring nested DB calls are
  not occuring during signal handler cleanup (CFE-1996)
- Fixed a bug which could cause cf-execd to believe there was
  an error when sending the email report, when there really wasn't
- zendesk#3204: Fix "lastseenexpireafter" 32-bit signed int overflow
- Fixed cf-execd not exiting immediately with SIGTERM on AIX (ENT-3147)
- Fixed automatic service stops based on runlevel (redhat/centos)
  (CFE-2611)
- Fixed cf-serverd crash when reporting corrupted data (ENT-3023)
- Fixed rare output truncation on Solaris 10/11 (CFE-2527)
- Fixed crash on Solaris when ps ucb variant is not available (CFE-2506)
- Fixed logic to detect when running under a Xen Hypervisor (CFE-1563)
- Fixed "lastseenexpireafter" 32-bit signed int overflow (zendesk#3204)
- Fixed IPv6 parsing to be un-reversed (CFE-2580)

## 3.10.0

New features/additions:

- All new features/additions for 3.8 and 3.9 are also included in 3.10.
- Add: Classes body tailored for use with diff
- New feature: Classes promise: allow classes without an expression to default to defined.
- Support for custom ports and host names as policy hub (CFE-953)
- Add: Definition of from_cfexecd for cf-execd initiated runs
  (CFE-2386)
- Added < <= > >= operators to eval().
- Added testing jUnit and TAP bundles and include them in stdlib.cf
- New function isipinsubnet() (ENT-7949)
- LogDebug(): implement module-based debug logging.
  Now most DEBUG messages are **NOT** printed even when "-d" is in use, but
  the specific debug module has to be enabled on the command line. For
  example to enable all log modules, run:
  cf-agent -d --log-modules=all
- Add: edit_line contains_literal_string to stdlib
- Added variablesmatching_as_data() function paralleling variablesmatching()
  (Redmine #7885)
- Allow specifying agent maxconnections via def.json (CFE-2461)
- Added getuserinfo() function
- Added body agent control select_end_match_eof option. (CFE-2390)
- Added class to enable post transfer verification during policy updates
- Added ability to append to bundlesequnece with def.json (CFE-2460)
- policy_server.dat now appends a newline and supports host & port

Changes:

- Rewrite iteration engine to avoid combinatorial explosion with nested variable expansions.
  This speeds up enormously the execution of policies that included long
  slists or JSON containers, that in the past didn't even terminate.
  Change: `"cf_null"` string literal was changed to not be something
  special, and it's now a string that can be used anywhere, like
  in slists or part of bundlesequence etc.
  NOTE: Old policy should be grep'ed for `"cf_null"` and in case such
  occurences were handled specially, they should be reworked.
  Change: "--empty-list--" is now never printed by format(),
  an empty list is now printed as `{ }`.
  Change: Order of pre-evaluation was slightly changed, A new "vars" pass
  at the beginning of pre-evaluation was added. It used to be
  classes-vars, but it was changed to vars-classes-vars. As a
  result some classes or variables might be evaluated at a
  different time than before. As always try to write policy code that works no matter what the
  order of execution is.
  One way is to always **guard** the execution of functions to avoid
  bogus function results. For example the following will avoid
  running execresult() bevore the file has been created:
  execresult("cmd /path/to/filename") if => fileexists("/path/to/filename");
  C internals: NULL Rlist is now perfectly valid, in fact it is the only
  way to denote an empty Rlist.
  C internals: Since a slist variable can be NULL, API of
  EvalContextVariableGet() changed: The way to detect if a
  variable is found, is not to check return value for NULL,
  but to check returned **type** for CF_DATA_TYPE_NONE.
  Fixed what I could find as wrong API uses. (CFE-2162)
- Allow arbitrary service policies (CFE-2402)
- Behaviour change: cf-execd: Do not append -Dfrom_cfexecd to exec_command .
  (CFE-2386)
- Failsafe/Bootstrap no longer copy files starting with .git (like .gitignore) or .mailmap
  (CFE-2439)
- Change: Enable strict transport security
- Change: Disable http TRACE method
- Change: Verify transfered files during policy update
- Allow getvariablemetatags() and getclassmetatags() to get a specific tag key
- Change: Use more restrictive unix socket perms (ENT-2705)
- Added sys.user_data container for user starting agent.
- Pass package promise options to underlying apt-get call (#802)
  (CFE-2468)
- Change: Enable agent component management policy on systemd hosts
  (CFE-2429)
- Change: Switch processes restart_class logging to verbose
- Change: Log level for keeping verbatim JSON to DEBUG (CFE-2141)
- Change: Require network before CFEngine services (CFE-2435)
- Behaviour change: getvalues(inexistent_var) returns an empty list.
  Restores 3.7.x and earlier behaviour. (CFE-2479)
- Behaviour change: when used with CFEngine 3.10.0 or greater,
  bundles set_config_values() and set_line_based() are appending a
  trailing space when inserting a configuration option with empty value.
  (CFE-2466)
- Behaviour change: getvalues() always returns a list now. Even when v is a simple
  string (i.e. not an iterable) it will return an slist with one element:
  the value of the string variable.
- Behaviour change: readintlist() now prints an error if the
  file contains real numbers, not integers, and aborts; previously it was
  printing an info-level error message, was half-reading an integer out of
  the real, and was continuing successfully.
- Ensure synchronous start and stop with systemctl (ENT-2841)
- Change select_region INI_section to match end of section or end of file
  (CFE-2519)

Bug fixes:

- Fixed files promise not setting ACL properly on directories. (CFE-616)
- Upgrade CFEngine dependencies to the following versions:
  - lixml2 2.9.4
  - OpenSSL 1.0.2j
  - LibYAML 0.1.7
  - Curl 7.50.3
- Fixed cumulative() to accept up to 1000 years, like it's documented.
- Fixed parsing of host name/IP and port number in cf-runagent
  (CFE-546)
- Fixed intermittent error message of type:
  "error: Process table lacks space for last columns: <cmd>" (CFE-2371)
- storage: Properly initialize the list of current mounts (CFE-1803)
- Fixed `contain` attribute `no_output` having no effect when
  the `commands` promise is using `module => "true"`. (CFE-2412)
- Fixed bug which caused empty emails to be sent from cf-execd
  if there was no previous output log and the new log was fully filtered
  by email filters. (ENT-2739)
- Allow ifelse(FALSE, $(x), "something else") to work. (CFE-2260)
- Fixed connection cache, reuse connections when possible. (CFE-2447)
- Fixed rare bug that would sometimes prevent redis-server from launching.
- Fixed bug in files promise when multiple owners are promised
  but first one doesn't exist, and improve logging . (CFE-2432)
- Define kept outcome with action warn if edit_line is as expected
  (CFE-2424)
- Example using getvariablemetatags() and getclassmetatags() to get a specific tag key
- Remove 2k limit on strings length when writing JSON policies
  (CFE-2383)
- Fixed ttime_range constraint to go higher than 2G as number of seconds.
- Change: cronjob bundle tolerates different spacing
- Allow editing fields in lines longer than 4k (CFE-2438)
- Don't send empty emails for logs where everything is filtered.
  (ENT-2739)
- Allow maplist(), maparray(), and mapdata() to evaluate function calls during iteration
  (ARCHIVE-1619)
- insert_lines is no longer implicitly matching EOF as
  end of the region if `select_end` pattern is not matched . (CFE-2263)
- Change: Remove executable bit from systemd units (CFE-2436)
- cf-serverd should reload def.json when reloading policy (CFE-2406)
- Fixed cf-monitord detection of usernames of the process table on AIX.
- Speed up local and remote file copying and fix spurious errors.
  (ENT-2769)
- Fixed occasional segfault when running getindices() on a
  variable that has indices of multiple depths (e.g. both "a[x]" and
  "a[x][y]"). (CFE-2397)
- When no file is provided when calling cf-promises
  with cf or json output, use promises.cf by default. This restores the
  previous behavior. (CFE-2375)
- Fix: Services starting or stopping unnecessarily (CFE-2421)
- Change: Split systemd units (CFE-2278)
- EOF is matched as an end of the region in edit_line
  promises only if `select_end_match_eof` parameter is true. (CFE-2263)
- Fixed double logging of output_prefix, and log process name for cf-agent syslog messages.
  (CFE-2225)
- Be less verbose if a network interface doesn't have a MAC address.
  (CFE-1995)
- Fix: CFEngine choking on standard services (CFE-2806)
- Fixed insert_lines related memory corruption (CFE-2520)
- Fixed cf-serverd crash when reporting corrupted data. (ENT-3023)
- Fixed ability to manage INI sections with metachars for
  manage_variable_values_ini and set_variable_values_ini (CFE-2519)
- Fixed apt_get package module incorrectly using interactive mode.
- Fixed crash on Solaris when ps ucb variant is not available. (CFE-2506)
- cf-serverd: Do not close connection when file does not exist.
  (CFE-2532)
- getvalues() now behaves correctly for old CFEngine arrays of depth 1.
  Known issues: getvalues() still misbehaves with double-indexed arrays
  (see (CFE-2504, CFE-2536)

## 3.9.0

New features/additions:

- Added optional interface parameter to iprange() to match only one interface.
- Allow `=` in symbolic modes (Redmine #7826)
- Add: FreeBSD ports package module
- New package module for FreeBSD pkg package manager.
- Added support for adding/removing fifos in policy
- Added Linux parsing of /proc/net/ data.
  - sys.inet
  - sys.inet6
  - sys.interface_data
  - Data is returned as a data container.
  - See documentation for more details. (Jira CFE-1991)
- sys.ip2iface: new reverse mapping variable from IP to interface name
- Namespaced classes can now be specified on the command line.
- Namespaces can now be passed to cf-runagent -D and --remote-bundles
  (Redmine #7856)
- Added `cf-full` and `json-full` to cf-promises `-p` option.
  They generate output based on the entire policy. The existing `cf`
  already behaved this way, and it has now been changed to generate
  output only for a single file, which the existing `json` option
  already does.
- New language functions: processexists() and findprocesses()
  (Redmine #7633)
- Implement new regex_replace() function. (Redmine #7346)
- Added log rotation policy for state/classes.jsonl log. (Redmine #7951)
- Added collect_vars utility bundle to stdlib
- Intoduce report_class_log attribute to body agent control.
  (Redmine #7951)
- Added standard_services service_method allowing for explicit usage
- cf-promises --show-vars can now show JSON variables.
- Added json_pipe mode to mapdata(), which allows piping a
  JSON container to an external program for manipulation and receiving
  JSON back. The jq tool is a good example where this mode can be
  useful. A corresponding $(def.jq) variable has also been added with
  a default path to this tool. See documentation for mapdata() for
  more information and examples. (Jira CFE-2071)
- Behaviour change: "true" is always defined and "false" is never defined in a context expression.
- Add: nimclient package module for AIX
  This module provides basic functionality for using nimclient as a means
  to ensure packages are either present or absent. It does not support
  listing package updates available or provide any special caching.
- Added callstack_callers() and callstack_promisers() functions.
- Log variable definitions in debug output. (Redmine #7137)
- Add: Memory information to host info report (Jira CFE-1177)
- In Mustache templates, one can now use {{#-top-}} and
  {{/-top-}} tags to iterate over the top level element in a
  container. (Redmine #6545)
- Added network_connections() function that parses /proc/net
- Provide new -w argument to override the workdir for testing
- New feature: Emails sent by cf-execd can be filtered to get
  rid of emails for unwanted log messages. The attributes
  mailfilter_include and mailfilter_exclude in body executor
  control control what to include. See documentation for cf-execd for
  more information. (Jira CFE-2283)
- Add: file_make_mustache bundle to render mustache templates
- Added `-n` flag to cf-key to avoid host name lookups.
- cf-agent, cf-execd, cf-promises, cf-runagent and cf-serverd honor multiple -D, -N and -s arguments
  (Redmine #7191)
- Added "canonify" mode to mapdata().
- Add: printfile bodies to stdlib
- Add: New results classes body [] (Redmine #7418, #7481)
- Implement cf-runagent --remote-bundles and cf-serverd "bundle" access promise.
  (Redmine #7581)
- Added commands promise arglist attribute, augmenting args attribute.
- It's now possible to reference variables in inline JSON,
  for example: mergedata(`[ thing, { "mykey": otherthing[123] } ]`).
  thing and otherthing[123] will be resolved as variables, since
  they are unquoted. See the documentation for more details.
  (Redmine #7871)
- Allow inline JSON to be used in the following function
  calls:
  - data_expand()
  - difference()
  - every()
  - filter()
  - format()
  - getindices()
  - getvalues()
  - grep()
  - intersection()
  - join()
  - length()
  - makerule()
  - mapdata()
  - maplist()
  - mean()
  - mergedata()
  - none()
  - nth()
  - parsejson()
  - product()
  - regarray()
  - reglist()
  - reverse()
  - shuffle()
  - some()
  - sort()
  - storejson()
  - string_mustache()
  - sublist()
  - sum()
  - unique()
  - url_get()
  - variance()

  For example: mergedata(`[ "thing", { "mykey": "myvalue" } ]`)
  See the documentation for more details. (Jira CFE-2253)

- Add: edit_line contains_literal_string to stdlib
- Added body agent control select_end_match_eof option. (Jira CFE-2390)

Changes:

- Change: classesmatching(): order of classes changed
- Change: getindices(), getvalues(), variablesmatching(), maparray():
  order of variables returned has changed
- Change: set_quoted_values uses bundle scoped classes
- Change: set_config_values uses bundle scoped classes
- Change: set_variable_values uses bundle scoped classes
- Change: set_config_values_matching uses bundle scoped classes
- Change: manage_variable_values_ini uses bundle scoped classes
- Change: set_line_based should use bundle scoped classes
  (Jira CFE-1959)
- getvalues() will now return a list also for data containers,
  and will descend recursively into the containers. (Redmine #7116)
- Change: Improve git drop user support
- Use new package promise as default package promise
  implementation. (Jira CFE-2332)
- Don't follow symbolic links when copying extended attributes.
- When a `bodydefault:<promise_type>*<body_type>` body is
  defined, it will be used by all promises of type <promise_type>
  unless another body is explicitly used.
- cf-serverd no longer appends "-I -Dcfruncommand" to
  cfruncommand, this has to be done manually in masterfiles
  body server control. (Redmine #7732)
- eval() function arguments mode and options are now
  optional.
- sort() function argument mode is now optional.
- Change: returnszero() no longer outputs the output of a command.
  The output can be seen by enabling info mode (-I).
- cfruncommand is not executed under shell. (Redmine #7409)
- Remove: Apache CGI module
- Change: Make maxbytes arg of readjson() and readyaml() optional
- Classes matching agent control`s abortclasses are
  now printed before exit, even if they are defined in common bundles.
  Previously the regex (in abortclasses) that matched the class was
  printed if the class was defined in a common bundle, but the class
  itself was printed if it was defined in an agent bundle. With this
  change, the defined class that caused the abort is always printed.
- Remove: Support for email settings from augments_file (Redmine #7682)
- Change: set_variable_values_ini uses bundle scoped classes
- findfiles() now skips relative paths. (Redmine #7981)
- Clients connections using non TLS protocol are rejected
  by default. . (Jira CFE-2339)
- Change: Policy files specified in the "inputs" section of
  def.json will no longer be auto-loaded. One has to refer to the
  which are using the "inputs" field inside def.json. (Redmine #7961)
- Change: Separate binary details from policy update (Redmine #7662)
- Added guard for binary upgrade during bootstrap (Redmine #7861)
- Change: Modernize pkg module and package_method
- Remove: Userdir apache module
- filestat(path, "linktarget") now follows non-absolute links and returns full path of target.
  This introduces a change in behaviour. Here is an example:
  ```
  $ ls -l /bin/sh
  lrwxrwxrwx 1 root root 4 Jun  4  2015 /bin/sh -> dash
  ```
  Previously the filestat function would return "dash", and would also log
  an error that the file can not be read. Now it will return "/bin/dash"
  (or the final destination if it happens that /bin/dash is also a
  symlink).
  You can still get the previous behaviour by using
  filestat(path, "linktarget_shallow"). (Redmine #7404)
- Define `(bootstrap|failsafe)_mode` during update.cf when triggerd from failsafe.cf
  (Redmine #7861)
- Behavior change: The promise string of a processes
  promise now matches just the command line of each process instead of
  the line that is output by ps. This was done to reduce fragmentation
  between platforms, since ps is a very nonstandardized tool.
  (Jira CFE-2161)
- Allowed namespace names made more strict, to disallow
  namespaces that cannot be reached. (Redmine #7903)
- Behavior change: When using readintlist(), readreallist()
  or readstringlist(), parsing an empty file will no longer result in a
  failed function call, but instead an empty list. Failure to open the
  file will still result in a failed function call.
- insert_lines is no longer implicitly matching EOF as
  end of the region if `select_end` pattern is not matched .
  (Jira CFE-2263)
- EOF is matched as an end of the region in edit_line
  promises only if `select_end_match_eof` parameter is true.
  (Jira CFE-2263)

Bug fixes:

- Upgrade CFEngine dependencies to the following versions (ENT-2720):
  - Curl 7.48.0
  - libxml2 2.9.4
  - LMDB 0.9.18
  - OpenLDAP 2.4.44
  - OpenSSL 1.0.2h
  - PCRE 8.38
- Upgrade dependencies to latest minor versions.
  For Community / Enterprise:
  For Enterprise:
- Fixed bug which sometimes misparses user names in ps output.
- Fix: Problem with git not dropping privileges soon enough
- Allow def.json up to 5MB instead of 4K.
- It is possible to edit the same value in multiple regions
  of one file. (Redmine #7460)
- CFEngine on Windows no longer truncates log messages if the
  program in question is killed halfway through.
- Fixed a bug which caused def.json not being able to define
  classes based on other hard classes. (Jira CFE-2333)
- Change: Tighten Enterprise hub permissions (Jira ENT-2708)
- Fixed a regression which would sometimes cause "Permission
  denied" errors on files inside directories with very restricted
  permissions. (Redmine #7808)
- Fixed use-after-free in ArrayMap and HashMap (Redmine #7952)
- Package repositories are no more hit every time package promise
  is evaluated on SUSE.
- Fixed a bug which sometimes caused package promises to be
  skipped with "XX Another cf-agent seems to have done this since I
  started" messages in the log, most notably in long running cf-agent
  runs (longer than one minute). (Redmine #7933)
- TTY detection should be more reliable. (Redmine #7606)
- cf-promises -p cf now produces valid CFEngine code (Redmine #7956)
- Fixed ps options for FreeBSD to check processes only in current host and not in jails
- cf-runagent now properly supports multiple -D or -s arguments
  (Redmine #7191)
- Fix: Work around impaired class definition from augments
  (Jira CFE-2333)
- Fixed "No such file or directory" LMDB error on heavily loaded hosts.
  (Jira CFE-2300)
- Check for empty server response in RemoteDirList after decryption
  (Redmine #7908)
- Small performance optimization when cf-execd scans emails before sending.
- Fixed handling of closed connections during transactions
  (Redmine #7926)
- The core ps parsing engine used for processes promises
  has been rewritten from scratch, and should be more robust than
  before. (Jira CFE-2161)
- Fixed the lexer which could not handle empty newline(s)
  before a @endif.
- groupexists() no longer fails to detect a group name
  starting with a digit. (Jira CFE-2351)
- Fixed HP-UX specific bug that caused a lot of log output to disappear.
- Fixed unresolved variable (Redmine #7931)
- Change: Suppress standard services noise on SUSE (Redmine #6968)
- Reduce verbosity of yum package module (Redmine #7485)
- cf-runagent: Allow connections to localhost instead of failing silently.
- Show errors regarding failure to copy extended attributes
  when doing a local file copy. Errors could happen when copying
  across two different mount points where the support for extended
  attributes is different between the mount points.
- Fixed classes being set because of hash collision in the implementation.
  (Redmine #7912)
- Fixed build failure on FreeBSD 7.1 (Redmine #7415)
- Improved logging when managing setuid/setgid
- Reduce verbosity of apt_get package module (Redmine #7485)
- packagesmatching() and packageupdatesmatching() should work
  when new package promise is used. (Jira CFE-2246)
- Fixed bug which could render host unable to recover from a
  syntax error, even if failsafe.cf was utilized. This could happen if
  the file containing the syntax error was specified in the def.json
  special file. (Redmine #7961)
- Prevent crash in cf-execd email code when policy server is not set.
- In case of networking error, assume checksum is wrong
- Fixed two cases where action_policy warn still produces errors
  (Redmine #7274)
- Fixed bad option nlwp to vzps on Proxmox / OpenVZ. (Redmine #6961)
- @if minimum_version now correctly ignores lines starting with `@`
  (Redmine #7862)
- No longer hang when changing permissions/ownership on fifos
  (Redmine #7030)
- `readfile()` and `read*list()` should print an error if they fail to read file.
  (Redmine #7702)
- The isvariable() function call now correctly accepts all
  array variables when specified inline. Previously it would not accept
  certain special characters, even though they could be specified
  indirectly by using a variable to hold it. (Redmine #7088)
- Fixed file descriptor leak when there are network errors.
- Improved robustness of process table parsing on Solaris.
  (Jira CFE-2161)
- Installing packages containing version numbers using yum
  now works correctly. (Redmine #7825)
- Parse def.json vars, classes and inputs from the C
  code. This fixes a bug where certain entries in this file would be
  parsed too late to have any effect on the evaluation.
  (Redmine #7453, #7615)
- Change package modules permissions on hub package so that
  hub can execute package promises. (Redmine #7602)
- Fix: CFEngine choking on standard services (Jira CFE-2086)
- Fix: cf-upgrade on SUSE
- Fix: Stop CFEngine choking on systemctl output (Jira CFE-2806)
- storage: Properly initialize the list of current mounts
  (Jira CFE-1803)
- Fixed bug which caused empty emails to be sent from cf-execd
  if there was no previous output log and the new log was fully filtered
  by email filters. (Jira ENT-2739)
- Don't send empty emails for logs where everything is filtered.
  (Jira ENT-2739)
- Fixed intermittent error message of type:
  "error: Process table lacks space for last columns: <cmd>"
  (Jira CFE-2371)
- Be less verbose if a network interface doesn't have a MAC address.
  (Jira CFE-1995)

## 3.8.2

Fixes:

- Update library dependencies to latest version.
  Libraries upgraded:
  - curl 7.47.0
  - LMDB 0.9.18
  - MySQL 5.1.72
  - OpenLDAP 2.4.44
  - OpenSSL 1.0.2g
  - PostgreSQL 9.3.11
  - Redis 3.0.7
  - rsync 3.1.2

  PHP was kept at 5.6.17 because of problems with the 5.6.19 version.

- Reduce verbosity of apt_get package module (Redmine #7485)
- Reduce verbosity of yum package module (Redmine #7485)
- The isvariable() function call now correctly accepts all
  array variables when specified inline. Previously it would not accept
  certain special characters, even though they could be specified
  indirectly by using a variable to hold it. (Redmine #7088)
- Don't follow symbolic links when copying extended attributes.
- Fixed a bug which sometimes caused package promises to be
  skipped with "XX Another cf-agent seems to have done this since I
  started" messages in the log, most notably in long running cf-agent
  runs (longer than one minute). (Redmine #7933)
- Fixed bug which could render host unable to recover from a
  syntax error, even if failsafe.cf was utilized. This could happen if
  the file containing the syntax error was specified in the def.json
  special file. (Redmine #7961)
- Change: Policy files specified in the "inputs" section of
  def.json will no longer be auto-loaded. One has to refer to the
  $(def.augments_inputs) variable in the policy (the standard
  masterfiles policies include this by default). This only affects
  installations which are not based on the standard masterfiles, and
  which are using the "inputs" field inside def.json. (Redmine #7961)
- Fixed file descriptor leak when there are network errors.
- Fixed cf-serverd error messages with classic protocol clients
  (Redmine #7818)
- Installing packages containing version numbers using yum
  now works correctly. (Redmine #7825)
- Fixed ps options for FreeBSD to check processes only in current host and not in jails
- Fixed build failure on FreeBSD 7.1 (Redmine #7415)
- Show errors regarding failure to copy extended attributes
  when doing a local file copy. Errors could happen when copying
  across two different mount points where the support for extended
  attributes is different between the mount points.
- Fixed classes being set because of hash collision in the implementation.
  (Redmine #7912)
- Allow def.json up to 5MB instead of 4K.
- Fixed a regression which would sometimes cause "Permission
  denied" errors on files inside directories with very restricted
  permissions. (Redmine #7808)
- Change: Suppress standard services noise on SUSE (Redmine #6968)

Changes:

- Change: classesmatching(): order of classes changed

## 3.8.1

Changes:

- Upgrade CFEngine dependencies to the following versions:
  - OpenSSL1.0.2e
  - PCRE8.38
  - libxml22.9.3
  - OpenLDAP 2.4.43
  - libcurl7.46.0
- Upgrade LMDB to version 0.9.17. (Redmine #7879)

Bug fixes:

- @if minimum_version now correctly ignores lines starting with `@`
  (Redmine #7862)
- Added guard for binary upgrade during bootstrap (Redmine #7861)
- Namespaced classes can now be specified on the command line.
- Fixed bad option nlwp to vzps on Proxmox / OpenVZ. (Redmine #6961)
- Fixed two cases where action_policy warn still produces errors
  (Redmine #7274)
- Parse def.json vars, classes and inputs from the C
  code. This fixes a bug where certain entries in this file would be
  parsed too late to have any effect on the evaluation.
  (Redmine #7453, #7615)
- Fixed HP-UX specific bug that caused a lot of log output to disappear.
- Check for empty server response in RemoteDirList after decryption
  (Redmine #7908)
- getvalues() will now return a list also for data containers,
  and will descend recursively into the containers. (Redmine #7116)
- Define `(bootstrap|failsafe)_mode` during update.cf when triggerd from failsafe.cf
  (Redmine #7861)

## 3.8.0

New features/additions:

- New feature: Bodies can now inherit attribute values from
  other bodies by specifying "inherit_from" with the name of the body to
  inherit from, plus any arguments it accepts. For example:
  ```
  body classes myclasses
  {
    inherit_from => classes_generic("myname");
  }
  ```
  (Redmine #4309)
- Added url_get() function. (Redmine #6480)
- Added @if feature() syntax
  @if feature work like @if minimum_version but allows distinguishing
  between features chosen at compile time.
- Extend module protocol to create persistent classes.
  To use it, have the module print a line with "^persistence=<minutes>"
  before printing any class names. "persistence=0" goes back to non-
  persistent classes. (Redmine #7302)
- Add: New results classes body (Redmine #7418)
- Add: Debug reports in cfe_internal_cleanup_agent_reports
- Add: Path to svcprop in stdlib
- Add: masterfiles-stage script to contrib
- Whitespace is now allowed in class expressions for
  readability, between class names and operators. (Redmine #7152)

Changes:

- Change: Clarify bootstrap/failsafe reports
- Change: Improve in-line docs for internal log maintenance
- Change: Improve efficiency and debug reports (Redmine #7527)
- Remove: 3.5 support from masterfiles policy framework
- Long promiser strings with multiple lines are now
  abbreviated in logs. (Redmine #3964)
- Change: Reunify Version based policy split
- Change: Separate binary details from policy update (Redmine #7662)
- Remove /var/cfengine/cf3.<host>.runlog. (Redmine #6957)
- Change: `sys.libdir` and `sys.local_libdir` to non version specific path
  - `sys.libdir` now resolves to `$(sys.inputdir)/lib`
  - `sys.local_libdir` now resolves to lib (Redmine #7559)
- Moved the following files to /var/cfengine/log/:
  - /var/cfengine/promise_summary.log
  - /var/cfengine/cfagent.<host>.log
- Change: Separate binary details from policy update (Redmine #7662)
- Remove: Support for email settings from augments_file (Redmine #7682)

Bug fixes:

- It is possible to edit the same value in multiple regions
  of one file. (Redmine #7460)
- Change package modules permissions on hub package so that
  hub can execute package promises. (Rednime #7602) (Redmine #7602)
- Fixed exporting CSV reports through HTTPS. (Redmine #7267)
- cf-agent, cf-execd, cf-promises, cf-runagent and cf-serverd honor
  multiple -D, -N and -s arguments (Redmine #7191)
- `readfile()` and `read*list()` should print an error if they fail to read file.
  (Redmine #7702)
- No longer hang when changing permissions/ownership on fifos
  (Redmine #7030)
- Fixed broken HA policy for 3rd disaster-recovery node.
- Fix: Policy errors for 3.5 and 3.6
- Mustache templates: Fix {{@}} key when value is not a
  primitive. The old behavior, when iterating across a map or array of
  maps, was to abort if the key was requested with {{@}}. The new
  behavior is to always replace {{@}} with either the key name or the
  iteration position in the array. An error is printed if {{@}} is used
  outside of a Mustache iteration section.
- Fixed build with musl libc. (Redmine #7455)
- Fixed a bug which could cause daemons to not to be killed
  correctly when upgrading or manually running "service cfengine3 stop".
  (Redmine #7193)
- Fixed daemons not restarting correctly on upgrade on AIX.
- Package promise: Fix inability to install certain packages
  with numbers. (Redmine #7421)
- Redmine #6027 Directories should no more be changed randomly
  into files. (Redmine #6027)
- Improved cf-serverd's lock contention because of getpwnam()
  call. (Redmine #7643) (Redmine #7643)
- action_policy "warn" now correctly produces warnings instead
  of various other verbosity levels. (Redmine #7274)
- If there is an error saving a mustache template file
  it is now logged with log-level error (was inform).
- The JSON parser now supports unquoted strings as keys.
- Reduce malloc() thread contention on heavily loaded
  cf-serverd, by not exiting early in the logging function, if no message
  is to be printed. (Redmine #7624) (Redmine #7624)
- Fixed a bug which caused daemons not to be restarted on
  upgrade. (Redmine #7528)
- Include latest security updates for dependencies.
- Fixed bug which would cause bff and depot packages not to
  run package scripts on removal. (Redmine #7193)
- Fixed upgrade causing error message under systemd because of open ports.
- Fixed several bugs which prevented CFEngine from loading
  libraries from the correct location. This affected several platforms.
  (Redmine #6708)
- Legacy package promise: Result classes are now defined if
  the package being promised is already up to date. (Redmine #7399)
- failsafe.cf will be created when needed. (Redmine #7634)
  (Redmine #7634)
- If file_select.file_types is set to symlink and there
  are regular files in the scanned directory, CFEngine no longer
  produces an unnecessary error message. (Redmine #6996)
- Fixed `AIX_PREINSTALL_ALREADY_DONE.txt: cannot create` error
  message on AIX.
- Fixed package promise not removing dependent packages. (Redmine #7424)
- Fix: Solaris packages no longer contain duplicate library
  files, but instead symlinks to them. (Redmine #7591)
- Fixed select_class not setting class when used in common bundle with slist.
  (Redmine #7482)
- Fixed "@endif" keyword sometimes being improperly processed
  by policy parser. (Redmine #7413)
- Fixed noise from internal policy to upgrade windows agents
  (Redmine #7456)
- cfruncommand now works if it contains spaces, with the TLS protocol.
  (Redmine #7405)
- Fixed warning "Failed to parse csv file entry" with certain very long
  commands promises. (Redmine #7400)
- CFEngine no longer erronously passes -M to useradd on HP-UX. (Redmine #6734)
- cf-monitord no longer complains about missing thermal zone files.
  (Redmine #7238)
- systemd is now detected correctly if it is a symlink (Redmine #7297)
- TTY detection should be more reliable. (Redmine #7606)
  (Redmine #7606)

## 3.7.3

Fixes:

- Reduce verbosity of yum package module (Redmine #7485)
- Reduce verbosity of apt_get package module (Redmine #7485)
- Upgrade dependencies to latest patch versions.
  Upgraded libraries:
  - curl 7.47.0
  - libxml2 2.9.3
  - LMDB 0.9.18
  - MySQL 5.1.72
  - OpenLDAP 2.4.44
  - OpenSSL 1.0.2g
  - PCRE 8.38
  - PostgreSQL 9.3.11
  - Redis 2.8.24
  - rsync 3.1.2

  PHP was kept at 5.6.17 because of problems with the 5.6.19 version.

- Parse def.json vars, classes, and inputs in C (Redmine #7453)
- Namespaced classes can now be specified on the command line.
- getvalues() will now return a list also for data containers,
  and will descend recursively into the containers. (Redmine #7116)
- @if minimum_version now correctly ignores lines starting with `@`
  (Redmine #7862)
- Fixed definition of classes from augments file
- Don't follow symbolic links when copying extended attributes.
- Fixed ps options for FreeBSD to check processes only in current host and not in jails
- Fixed cf-serverd error messages with classic protocol clients
  (Redmine #7818)
- Change: Suppress standard services noise on SUSE (Redmine #6968)
- The isvariable() function call now correctly accepts all
  array variables when specified inline. Previously it would not accept
  certain special characters, even though they could be specified
  indirectly by using a variable to hold it. (Redmine #7088)
- Show errors regarding failure to copy extended attributes
  when doing a local file copy. Errors could happen when copying
  across two different mount points where the support for extended
  attributes is different between the mount points.
- Fixed bad option nlwp to vzps on Proxmox / OpenVZ. (Redmine #6961)
- Fixed file descriptor leak when there are network errors.
- Fixed a regression which would sometimes cause "Permission
  denied" errors on files inside directories with very restricted
  permissions. (Redmine #7808)
- Check for empty server response in RemoteDirList after decryption
  (Redmine #7908)
- Allow def.json up to 5MB instead of 4K.
- Added guard for binary upgrade during bootstrap (Redmine #7861)
- Fixed HP-UX specific bug that caused a lot of log output to disappear.
- Fixed a bug which sometimes caused package promises to be
  skipped with "XX Another cf-agent seems to have done this since I
  started" messages in the log, most notably in long running cf-agent
  runs (longer than one minute). (Redmine #7933)
- Define `(bootstrap|failsafe)_mode` during update.cf when triggerd from failsafe.cf
  (Redmine #7861)
- Fixed two cases where action_policy warn still produces errors
  (Redmine #7274)
- Fixed classes being set because of hash collision in the implementation.
  (Redmine #7912)
- Fixed build failure on FreeBSD 7.1 (Redmine #7415)
- Installing packages containing version numbers using yum
  now works correctly. (Redmine #7825)

Changes:

- Change: classesmatching(): order of classes changed

## 3.7.3

Fixes:

- Reduce verbosity of yum package module (Redmine #7485)
- Reduce verbosity of apt_get package module (Redmine #7485)
- Upgrade dependencies to latest patch versions.
  Upgraded libraries:
  - curl 7.47.0
  - libxml2 2.9.3
  - LMDB 0.9.18
  - MySQL 5.1.72
  - OpenLDAP 2.4.44
  - OpenSSL 1.0.2g
  - PCRE 8.38
  - PostgreSQL 9.3.11
  - Redis 2.8.24
  - rsync 3.1.2

  PHP was kept at 5.6.17 because of problems with the 5.6.19 version.

- Parse def.json vars, classes, and inputs in C (Redmine #7453)
- Namespaced classes can now be specified on the command line.
- getvalues() will now return a list also for data containers,
  and will descend recursively into the containers. (Redmine #7116)
- @if minimum_version now correctly ignores lines starting with `@`
  (Redmine #7862)
- Fixed definition of classes from augments file
- Don't follow symbolic links when copying extended attributes.
- Fixed ps options for FreeBSD to check processes only in current host and not in jails
- Fixed cf-serverd error messages with classic protocol clients
  (Redmine #7818)
- Change: Suppress standard services noise on SUSE (Redmine #6968)
- The isvariable() function call now correctly accepts all
  array variables when specified inline. Previously it would not accept
  certain special characters, even though they could be specified
  indirectly by using a variable to hold it. (Redmine #7088)
- Show errors regarding failure to copy extended attributes
  when doing a local file copy. Errors could happen when copying
  across two different mount points where the support for extended
  attributes is different between the mount points.
- Fixed bad option nlwp to vzps on Proxmox / OpenVZ. (Redmine #6961)
- Fixed file descriptor leak when there are network errors.
- Fixed a regression which would sometimes cause "Permission
  denied" errors on files inside directories with very restricted
  permissions. (Redmine #7808)
- Check for empty server response in RemoteDirList after decryption
  (Redmine #7908)
- Allow def.json up to 5MB instead of 4K.
- Added guard for binary upgrade during bootstrap (Redmine #7861)
- Fixed HP-UX specific bug that caused a lot of log output to disappear.
- Fixed a bug which sometimes caused package promises to be
  skipped with "XX Another cf-agent seems to have done this since I
  started" messages in the log, most notably in long running cf-agent
  runs (longer than one minute). (Redmine #7933)
- Define `(bootstrap|failsafe)_mode` during update.cf when triggerd from failsafe.cf
  (Redmine #7861)
- Fixed two cases where action_policy warn still produces errors
  (Redmine #7274)
- Fixed classes being set because of hash collision in the implementation.
  (Redmine #7912)
- Fixed build failure on FreeBSD 7.1 (Redmine #7415)
- Installing packages containing version numbers using yum
  now works correctly. (Redmine #7825)

Changes:

- Change: classesmatching(): order of classes changed

## 3.7.2

Bug fixes:

- `readfile()` and `read*list()` should print an error if they fail to read file.
  (Redmine #7702)
- Fixed `AIX_PREINSTALL_ALREADY_DONE.txt: cannot create` error
  message on AIX.
- If there is an error saving a mustache template file
  it is now logged with log-level error (was inform).
- Change: Clarify bootstrap/failsafe reports
- Fixed several bugs which prevented CFEngine from loading
  libraries from the correct location. This affected several platforms.
  (Redmine #6708)
- If file_select.file_types is set to symlink and there
  are regular files in the scanned directory, CFEngine no longer
  produces an unnecessary error message. (Redmine #6996)
- Fix: Solaris packages no longer contain duplicate library
  files, but instead symlinks to them. (Redmine #7591)
- cf-agent, cf-execd, cf-promises, cf-runagent and cf-serverd honor
  multiple -D, -N and -s arguments (Redmine #7191)
- Fixed "@endif" keyword sometimes being improperly processed
  by policy parser. (Redmine #7413)
- It is possible to edit the same value in multiple regions
  of one file. (Redmine #7460)
- Fixed select_class not setting class when used in common bundle with slist.
  (Redmine #7482)
- Fixed broken HA policy for 3rd disaster-recovery node.
- Directories should no more be changed randomly
  into files. (Redmine #6027)
- Include latest security updates for 3.7.
- Reduce malloc() thread contention on heavily loaded
  cf-serverd, by not exiting early in the logging function, if no message
  is to be printed. (Redmine #7624)
- Improved cf-serverd's lock contention because of getpwnam()
  call. (Redmine #7643)
- action_policy "warn" now correctly produces warnings instead
  of various other verbosity levels. (Redmine #7274)
- Change: Improve efficiency and debug reports (Redmine #7527)
- Change package modules permissions on hub package so that
  hub can execute package promises. (Redmine #7602)
- No longer hang when changing permissions/ownership on fifos
  (Redmine #7030)
- Fixed exporting CSV reports through HTTPS. (Redmine #7267)
- failsafe.cf will be created when needed. (Redmine #7634)
- Mustache templates: Fix {{@}} key when value is not a
  primitive. The old behavior, when iterating across a map or array of
  maps, was to abort if the key was requested with {{@}}. The new
  behavior is to always replace {{@}} with either the key name or the
  iteration position in the array. An error is printed if {{@}} is used
  outside of a Mustache iteration section.
- Legacy package promise: Result classes are now defined if
  the package being promised is already up to date. (Redmine #7399)
- TTY detection should be more reliable. (Redmine #7606)

Masterfiles:

- Add: Path to svcprop in stdlib
- Add: New results classes body [] (Redmine #7418, #7481)
- Remove: Support for email settings from augments_file (Redmine #7682)

## 3.7.1

Bug fixes:

- Fixed daemons not restarting correctly on upgrade on AIX. (Redmine #7550)
- Fixed upgrade causing error message under systemd because of open ports.
- Fixed build with musl libc. (Redmine #7455)
- Long promiser strings with multiple lines are now
  abbreviated in logs. (Redmine #3964)
- Fixed a bug which could cause daemons to not to be killed
  correctly when upgrading or manually running "service cfengine3 stop".
  (Redmine #7193)
- Package promise: Fix inability to install certain packages
  with numbers.
- Fixed package promise not removing dependent packages. (Redmine #7424)
- Fixed warning "Failed to parse csv file entry" with certain very long
  commands promises. (Redmine #7400)
- Fixed misaligned help output in cf-hub. (Redmine #7273)
- Augmenting inputs from the augments_file (Redmine #7420)
- Added support for failover to 3rd HA node located outside cluster.
- Upgrade all dependencies for patch release.
- Fixed a bug which caused daemons not to be restarted on
  upgrade. (Redmine #7528)

## 3.7.0

New features:

- New package promise implementation.
  The syntax is much simpler, to try it out, check out the syntax:

```cfe3
packages:
  "mypackage"
 policy => "absent/present",

 # Optional, default taken from common control
 package_module => apt_get,

 # Optional, will only match exact version. May be
 # "latest".
 version => "32.0",

 # Optional.
 architecture => "x86_64";
```

- Full systemd support for all relevant platforms
- New classes to determine whether certain features are enabled:
  - feature_yaml
  - feature_xml

  For the official CFEngine packages, these are always enabled, but
  packages from other sources may be built without the support.

- New readdata() support for generic data input (CSV, YAML, JSON, or auto)
- YAML support: new readyaml() function and in readdata()
- CSV support: new readcsv() function and in readdata()
- New string_mustache() function
- New data_regextract() function
- eval() can now be called with "class" as the "mode" argument, which
  will cause it to return true ("any") if the calculated result is
  non-zero, and false ("!any") if it is zero.
- New list_ifelse() function
- New mapdata() function as well as JSON support in maparray().
- filestat() function now supports "xattr" argument for extended
  attributes.
- "ifvarclass" now has "if" as an alias, and "unless" as an inverse
  alias.
- Ability to expand JSON variables directory in Mustache templates:
  Prefix the name with `%` for multiline expansion, `$` for compact
  expansion.
- Ability to expand the iteration _key_ in Mustache templates with @
- Canonical JSON output: JSON output has reliably sorted keys so the
  same data structure will produce the same JSON every time.
- New "@if minimum_version(x.x)" syntax in order to hide future language
  improvements from versions that don't understand them.
- Compile time option (--with-statedir) to
  override the default state/ directory path.
- Fixed error messages/ handling in process signalling which no longer
  allowed any signals to fail silently
- Also enable shortcut keyword for cf-serverd classic protocol, eg to
  simplify the bootstrap process for clients that have different
  sys.masterdir settings (Redmine #3697)
- methods promises now accepts the bundle name in the promiser string,
  as long as it doesn't have any parameters.
- In a services promise, if the `service_method` bundle is not specified,
  it defaults to the promiser string (canonified) with `"service_"` as a
  prefix. The bundle must be in the same namespace as the promise.
- Inline JSON in policy files: surrounding with parsejson() is now
  optional _when creating a new data container_.
- New data_expand() function to interpolate variables in a data container.
- Added configurable network bandwidth limit for all outgoing
  connections ("bwlimit" attribute in "body common control") . To
  enforce it in both directions, make sure the attribute is set on both
  sides of the connection.
- Secure bootstrap has been facilitated by use of
  "cf-agent --boostrap HUB_ADDRESS --trust-server=no"
- Implement new TLS-relevant options (Redmine #6883):
  - body common control: tls_min_version
  - body server control: allowtlsversion
  - body common control: tls_ciphers
  - body server control: allowciphers (preexisting)

Changes:

- Improved output format, less verbose, and messages are grouped.
- cf-execd: agent_expireafter default was changed to 120 minutes
  (Redmine #7113)
- All embedded databases are now rooted in the state/ directory.
- TLS used as default for all outgoing connections.
- process promise now reports kept status instead of repaired if a
  signal is not sent, even if the restart_class is set. The old
  behavior was to set the repaired status whenever the process was not
  running. (Redmine#7216).
- Bootstrapping requires keys to be generated in advance using cf-key.
- Disable class set on reverse lookup of interfaces IP addresses.
  (Redmine #3993, Redmine #6870)
- Define a hard class with just the OS major version on FreeBSD.
- Abort cf-agent if OpenSSL's random number generator can't
  be seeded securely.
- Masterfiles source tarball now installs using the usual commands
  "./configure; make install".
- Updated Emacs syntax highlighting template to support the latest
  syntax enhancements in 3.7.

Deprecations:

- Arbitrary arguments to cfruncommand (using "cf-runagent -o") are
  not acceptable any more. (Redmine #6978)
- 3.4 is no longer supported in masterfiles.

Bug fixes:

- Fixed server common bundles evaluation order (Redmine#7211).
- Limit LMDB disk usage by preserving sparse areas in LMDB files
  (Redmine#7242).
- Fixed LMDB corruption on HP-UX 11.23. (Redmine #6994)
- Fixed insert_lines failing to converge if preserve_block was used.
  (Redmine #7094)
- Fixed init script failing to stop/restart daemons on openvz/lxc
  hosts. (Redmine #3394)
- rm_rf_depth now deletes base directory as advertised. (Redmine #7009)
- Refactored cf-agent's connection cache to properly differentiate
  hosts using all needed attributes like host and port.
  (Redmine #4646)
- Refactored lastseen database handling to avoid inconsistencies.
  (Redmine #6660)
- cf-key --trust-key now supports new syntax to also update the
  lastseen database, so that clients using old protocol will trust
  the server correctly.
- Fixed a bug which sometimes caused an agent or daemon to kill or stop
  itself. (Redmine #7075, #7244)
- Fixed a bug which made it difficult to kill CFEngine daemons,
  particularly cf-execd. (Redmine #6659, #7193)
- Fixed a bug causing systemd not to be detected correctly on Debian.
  (Redmine #7297)
- "cf-promises -T" will now correctly report the checked out commit,
  even if you haven't checked out a Git branch. (Redmine #7332)
- Reduce verbosity of harmless errors related to socket timeouts and
  missing thermal zone files. (Redmine #6486 and #7238)

Masterfiles:

Added:

- Support for user specified overring of framework defaults without
  modifying policy supplied by the framework itself (see
  example_def.json)
- Support for def.json class augmentation in update policy
- Run vacuum operation on postgresql every night as a part of
  maintenance.
- Added measure_promise_time action body to lib (3.5, 3.6, 3.7, 3.8)
- New negative class guard cfengine_internal_disable_agent_email so
  that agent email can be easily disabled by augmenting def.json

Changed:

- Relocated def.cf to controls/VER/
- Relocated update_def to controls/VER
- Relocated all controls to controls/VER
- Only load cf_hub and reports.cf on CFEngine Enterprise installs
- Relocated acls related to report collection from bundle server
  access_rules to controls/VER/reports.cf into bundle server
  report_access_rules
- Re-organize cfe_internal splitting core from enterprise specific
  policies and loading the appropriate inputs only when necessary
- Moved update directory into cfe_internal as it is not generally
  intended to be modified
- services/autorun.cf moved to lib/VER/ as it is not generally intended
  to be modified
- To improve predictibility autorun bundles are activated in
  lexicographical order
- Relocated services/file_change.cf to cfe_internal/enterprise. This
  policy is most useful for a good OOTB experience with CFEngine
  Enterprise Mission Portal.
- Relocated service_catalogue from promsies.cf to services/main.cf. It is
  intended to be a user entry. This name change correlates with the main
  bundle being activated by default if there is no bundlesequence
  specified.
- Reduce benchmarks sample history to 1 day.
- Update policy no longer generates a keypair if one is not found.
  (Redmine: #7167)
- Relocated cfe_internal_postgresql_maintenance bundle to lib/VER/
- Set postgresql_monitoring_maintenance only for versions 3.6.0 and
  3.6.1
- Move hub specific bundles from lib/VER/cfe_internal.cf into
  lib/VER/cfe_internal_hub.cf and load them only if policy_server policy
  if set.
- Re-organize lib/VER/stdlib.cf from lists into classic array for use
  with getvalues

Removed:

- Diff reporting on /etc/shadow (Enterprise)
- Update policy from promise.cf inputs. There is no reason to include
  the update policy into promsies.cf, update.cf is the entry for the
  update policy
- `_not_repaired` outcome from `classes_generic` and `scoped_classes` generic
  (Redmine: # 7022)

Fixes:

- standard_services now restarts the service if it was not already
  running when using service_policy => restart with chkconfig (Redmine
  #7258)

## 3.6.5

Features:

- Introduced "systemd" hard class. (Redmine #6995)
- Added paths to dtrace, zfs and zpool on FreeBSD in masterfiles.

Bug fixes:

- Fixed build error on certain RHEL5 and SLES10 setups. (Redmine #6841)
- Fixed a bug which caused dangling symlinks not to be removed.
  (Redmine #6582)
- Fixed data_readstringarrayidx function not preserving the order of the
  array it's producing. (Redmine #6920)
- Fixed a bug which sometimes caused CFEngine to kill the wrong daemon
  if both the host and a container inside the host were running
  CFEngine. (Redmine #6906)
- Made sure the rm_rf_depth bundle also deletes the base directory.
  (Redmine #7009)
- Fixed monitord reporting wrongly on open ports. (Redmine #6926)
- Skip adding the class when its name is longer than 1024 characters.
  Fixed core dump when the name is too large. (Redmine #7013)
- Fixed detection of stopped process on Solaris. (Redmine #6946)
- Fixed infinite loop (Redmine #6992) plus a couple more minor
  bugs in edit_xml promises.

## 3.6.4

Features:

- Introduced users promises support on HP-UX platform.
- Introduced process promises support on HP-UX platform.

Bug fixes:

- Fixed bug on FreeBSD which sometimes led to the wrong process being
  killed (Redmine #2330)
- Fixed package version comparison sometimes failing with rpm package
  manager (Redmine #6807)
- Fixed a bug in users promises which would sometimes set the wrong
  password hash if the user would also be unlocked at the same time.
- Fixed a bug on AIX which would occasionally kill the wrong process.
- Improved error message for functions that require an absolute path.
  (Redmine #6877)
- Fixed some spelling errors in examples.
- Fixed error in out-of-tree builds when building cf-upgrade.
- Fixed a bug which would make cf-agent exit with an error if it was
  built with a custom log directory, and that directory did not exist.
- Fixed ordering of evaluating promises when depends_on is used.
  (Redmine #6484, Redmine #5462)
- Skip non-empty directories silently when recursively deleting.
  (Redmine #6331)
- Fixed memory exhaustion with list larger than 4994 items.
  (Redmine # 6672)
- Fixed cf-execd segfault on IP address detection (Redmine #6905).
- Fixed hard class detection of RHEL6 ComputeNode (Redmine #3148).

## 3.6.3

New features:

- Support for HP-UX 11.23 and later
- Experimental support for Red Hat Enterprise Linux 7

Bug fixes:

- Fixed getindices on multi-dimensional arrays (Redmine #6779)
- Fixed mustache template method to run in dryrun mode (Redmine #6739)
- Set mailto and mailfrom settings for execd in def.cf (Redmine #6702)
- Fixed conflation of multi-index entries in arrays (Redmine #6674)
- Fixed promise locking when transferring using update.cf (Redmine #6623)
- Update JSON parser to return an error on truncation (Redmine #6608)
- Fixed sys.hardware_addresses not expanded (Redmine #6603)
- Fixed opening database txn /var/cfengine/cf_lastseen.lmdb:
  MDB_READERS_FULL when running cf-keys --show-hosts (Redmine #6602)
- Fixed segfault (Null pointer dereference) when select_end in
  delete_lines never matches (Redmine #6589)
- Fixed max_file_size => "0" not disabling or allowing any size
  (Redmine #6588)
- Fixed ifvarclass, with iteration over list, failing when deleting
  files with time condition (Redmine #6577)
- Fixed classes defined with "or" constraint are never set if any value
  doesn't evaluate to a scalar (Redmine #6569)
- Update "mailfrom" default in default policy (Redmine #6567)
- Fixed logrotate ambiguity of filename (Redmine #6563)
- Fixed parsing JSON files (Redmine #6549)
- Reduce write count activity to /var partition (Redmine #6523)
- Fixed files delete attribute incorrectly triggering promise_kept
  (Redmine #6509)
- Update services bundle output related to chkconfig when run in
  inform mode. (Redmine #6492)
- Fixed Solaris serverd tests (Redmine #6406)
- Fixed broken bechaviour of merging arrays with readstringarray
  (Redmine #6369)
- Fixed ifelapsed bug with bundle nesting (Redmine #6334)
- Fixed handling cf_null in bundlesequence (Redmine #6119)
- Fixed maparray reading whole input array when using subarray
  (Redmine #6033)
- Fixed directories being randomly changed to files (Redmine #6027)
- Update defaults promise type to work with classes (Redmine #5748)
- systemd integration in services promises (Redmine #5415)
- Fixed touch attribute ignoring action = warn_only (Redmine #3172)
- Fixed 4KB string limit in functions readfile, string_downcase,
  string_head, string_reverse, string_length, string_tail,
  string_upcase (Redmine #2912)

## 3.6.2

Bug fixes:

- Don't regenerate software_packages.csv every time (Redmine #6441)
- Improved verbose message for package_list_command
- Fixed missing log output on AIX (Redmine #6434)
- Assorted fixes to dirname() esp on Windows (Redmine #4716)
- Fixed package manager detection
- Fixed build issues on FreeBSD
- Allow copying of dead symbolic links (Redmine #6175)
- Preserve order in readstringarrayidx (Redmine #6466)
- Fixed passing of unexpanded variable references to arrays
  (Redmine #5893)
- Use entries for new `{admin,deny}_{ips,hostnames}` constraints in
  the relevant legacy lists (Redmine #6542)
- Cope with ps's numeric fields overflowing to the right
- Interpret failing function calls in ifvarclass as class not set
  (Redmine #6327)
- Remove unexpanded lists when extending lists (Redmine #6541)
- Infer start-time of a process from elapsed when needed
  (Redmine #4094)
- Fixed input range definition for laterthan() function (Redmine #6530)
- Don't add trailing delimiter when join()'ing lists ending with a
  null-value (Redmine #6552)
- 9999999999 (ten 9s) or higher has been historically used as an upper
  bound in CFEngine code and policy but because of overflow on 32-bit
  platforms it caused problems with big numbers. Fixed in two ways:
  first change all existing policy uses to 999999999 (nine 9s instead
  of eleven 9s), second fix the C code to not wrap-around in case of
  overflow, but use the LONG_MAX value (Redmine #6531).
- cf-serverd and other daemons no longer reload their configuration
  every minute if CFEngine is built with an inputs directory outside
  of the work directory (not the default). (Redmine #6551)

## 3.6.1

New features:

- Introduced Solaris and AIX support into the 3.6 series, with many associated build and
  bug fixes.

Changes:

- Short-circuit evaluation of classes promises if class is already set (Redmine #5241)
- Fixed to assume all non-specified return codes are failed in commands promises (Redmine #5986)
- cf-serverd logs reconfiguration message to NOTICE (was INFO) so that it's always logged in syslog

Bug fixes:

- File monitoring has been completely rewritten (changes attribute in files promise), which
  eliminates many bugs, particularly regarding files that are deleted. Upgrading will keep
  all monitoring data, but downgrading again will reinitialize the DB, so all files will be
  reported as if they were new. (Redmine #2917)
- $(this.promiser) expands in files promises for `transformer`, `edit_template`,
  `copy_from.source`, `file_select.exec_program`, `classes` and `action` bodies
  (Redmine #1554, #1496, #3530, #1563)
- `body changes` notifies about disappeared files in file monitoring (Redmine #2917)
- Fixed CFEngine template producing a zero sized file (Redmine #6088)
- Added `0-9 A-Z _` to allowed context of module protocol (Redmine #6063)
- Extend ps command column width and prepend zone name on Solaris
- Fixed strftime() function on Solaris when called with certain specifiers.
- Fixed users promise bug regarding password hashes in a NIS/NSS setup.
- Fixed $(sys.uptime), $(sys.systime) and $(sys.sysday) in AIX. (Redmine #5148, #5206)
- Fixed processes_select complaining about "Unacceptable model uncertainty examining processes" (Redmine #6337)
- ps command for linux has been changed to cope with big rss values (Redmine #6337)
- Address ps -axo shift on FreeBSD 10 and later (Redmine #5667)
- methods and services promises respect action_policy => "warn" (Redmine #5924)
- LMDB should no longer deadlock if an agent is killed on the hub while holding the DB lock.
  Note that the change only affects binary packages shipped by CFEngine, since the upstream
  LMDB project has not yet integrated the change. (Redmine #6013)

## 3.6.0

Changes:

- Changes to logging output
  - Added process name and pid in syslog message (GitHub #789)
  - cf-serverd logging levels are now more standardised:
- INFO logs only failures
- VERBOSE logs successful requests as well
- DEBUG logs actual protocol traffic.
  - cf-serverd now logs the relevant client IP address on each message.
  - Logging contexts to local database (cf_classes.tcdb) has been deprecated.
  - `usebundle` promisees are logged for all the bundle promises
  - output from `reports` promises has nothing prefixed except `R: `
  - a log line with stack path is generated when the promise type evaluated changes
- LMDB (symas.com/mdb) is the default database for local data storage : use version 0.9.9 or later
  cf-agent --self-diagnostics (-x) is only implemented for TCDB, not for LMDB
- port argument in readtcp() and selectservers() may be a
  service name (e.g. "http", "pop3").
- Enabled source file in agent copy_from promises to be a relative path.
  - file "changes" reporting now reports with log level "notice", instead of "error".
- process_results default to AND'ing of set attributes if not specified (Redmine #3224)
- interface is now canonified in sys.hardware_mac[interface] to align with
  sys.ipv4[interface] (Redmine #3418)
- cf-promises no longer errors on missing bodies when run without --full-check (-c)
- Linux flavor "SUSE" now correctly spelled with all uppercase in variables and class names
  (Redmine #3734). The "suse" lowercase version is also provided for convenience (Redmine #5417).
- `$(this.promise_filename)` and `$(..._dirname)` variables are now absolute paths. (Redmine #3839)
- Including the same file multiple times in `body control inputs` is not an error
- portnumber in body copy_from now supports service names like
  "cfengine", "pop3" etc, check /etc/services for more.
- The failsafe.cf policy, run on bootstrap and in some other
  unusual cases, has been extracted from C code into libpromises/failsafe.cf
- masterfiles
  - cf_promises_validated is now in JSON format
  - timestamp key is timestamp (sec since unix epoch) of last time validated
  - the masterfiles now come from https://github.com/cfengine/masterfiles and are
    not in the core repository
- cf-serverd calls cf-agent with -Dcfruncommand when executing cf-runagent requests
- Mark as removed: promise_notkept_log_include, promise_notkept_log_exclude, promise_repaired_log_include,
  promise_repaired_log_exclude, classes_include, classes_exclude, variables_include,
  variables_exclude attributes from report_data_select body (syntax is valid but not functional).
  They have been replaced by the following attributes: promise_handle_include,
  promise_handle_exclude, metatags_include, metatags_exclude.

New features:

- New promise type "users" for managing local user accounts.
- TLS authentication and fully encrypted network protocol.
  Additions specific to the new type of connections:
  - New attribute "allowlegacyconnects" in body server control,
    which enables serving policy via non-latest CFEngine protocol,
    to the given list of hosts. If the option is absent, it
    defaults to allow all hosts. To refuse non-TLS connections,
    specify an empty list.
  - New attribute "protocol_version" in body copy_from, and body
    common control, which defines the preferred protocol for
    outgoing connections.. Allowed values at the moment: "0" or
    "undefined", "classic" or "1", "latest" or "2". By leaving the
    copy_from option as undefined the common control option is
    used, and if both are undefined then classic protocol is used
    by default.
  - The new networking protocol uses TLS for authentication,
    after which all dialog is encrypted within the established
    TLS session. cf-serverd is still able to speak the legacy
    protocol with old agents.
  - The `skipverify` option in `body server control` is
    deprecated and only left for compatibility; it does
    nothing
  - cf-serverd does not hang up the connection if some request
    fails, so that the client can add more requests.
  - For the connections using the new protocol, all of the
    paths in bundle server access_rules now differentiate
    between a directory and a file using the trailing
    slash. If the path exists then this is auto-detected and
    trailing slash appended automatically. You have to append
    a trailing slash manually to an inexistent or symbolic
    path (e.g. "/path/to/$(connection.ip)/") to force
    recursive access.
- New in `access` promises for `bundle server access_rules`
  - Attributes `"admit_ips"`, `"admit_hostnames"`, `"admit_keys"`,
    `"deny_ips"`, `"deny_hostnames"`, `"deny_keys"`
  - `"admit_keys"` and `"deny_keys"` add the new functionality
    of controlling access according to host identity,
    regardless of the connecting IP.
  - For these new attributes, regular expressions
    are not allowed, only CIDR notation for `"admit/deny*ips"`, exact
    `"SHA=..."` strings for `"admit/deny_keys"`, and exact hostnames
    (e.g. `"cfengine.com"`) or subdomains (starting with dot,
    e.g. `".cfengine.com"`) for `"admit/deny"_hostnames`. Same rules
    apply to `deny*\*` attributes.
  - These new constraints and the paths in access_rules, can contain
    special variables `"$(connection.ip)"`, `"$(connection.hostname)"`,
    `"$(connection.key)"`, which are expanded dynamically for every
    received connection.
  - For connections using the new protocol, `"admit"` and `"deny"`
    constraints in `bundle server access_rules` are being phased
    out, preferred attributes are now `"admit_ips"`, `"deny_ips"`,
    `"admit_hostnames"`, `"deny_hostnames"`, `"admit_keys"`,
    `"deny_keys"`.
  - New `"shortcut"` attribute in `bundle server access_rules` used to
    dynamically expand non-absolute request paths.
- masterfiles
  - standard library split: lib/3.5 (compatibility) and lib/3.6 (mainline)
  - many standard library bundles and bodies, especially packages- and file-related,
    were revised and fixed
  - supports both Community and Enterprise
  - new `inventory/` structure to provide OS, dmidecode, LSB, etc. system inventory
    (configured mainly in def.cf)
  - cf_promises_release_id contains the policy release ID which is the GIT HEAD SHA
    if available or hash of tree
  - a bunch`o`bundles to make starting with CFEngine easier:
  - file-related: file_mustache, file_mustache_jsonstring, file_tidy, dir_sync, file_copy,
    file_link, file_hardlink, file_empty, file_make
  - packages-related: package_absent, package_present, package_latest,
    package_specific_present, package_specific_absent, package_specific_latest, package_specific
  - XML-related: xml_insert_tree_nopath, xml_insert_tree, xml_set_value, xml_set_attribute
  - VCS-related: git_init, git_add, git_checkout, git_checkout_new_branch,
    git_clean, git_stash, git_stash_and_clean, git_commit, git
  - process-related: process_kill
  - other: cmerge, url_ping, logrotate, prunedir
- New command line options for agent binaries
  - New options to cf-promises
  - `--show-classes` and `--show-vars`
  - `--eval-functions` controls whether cf-promises should evaluate functions
  - Colorized output for agent binaries with command line option `--color`
    (auto-enabled if you set CFENGINE_COLOR=1)
- New language features
  - New variable type `data` for handling of structured data (ie JSON),
    including supporting functions:
- `data_readstringarray` - read a delimited file into a data map
- `data_readstringarrayidx` - read a delimited file into a data array
- `datastate` - create a data variable with currently set classes and variables
- `datatype` - determine the type of the top element of a container
- `format` - %S can be used to serialize `data` containers into a string
- `mergedata` - merge two data containers, slists/ilists/rlists, or "classic"
  arrays into a data container
- `parsejson` - create a data container from a JSON string
- `readjson` - create a data container from a file that contains JSON
- `storejson` - serialize a data container into a string
- Most functions operating on lists can also operate on data containers
- pass a data container to a bundle with the @(container) notation
- the module protocol accepts JSON for data containers with the `%` sigil
- Tagging of classes and variables allows annotating of language construct with
  meta data; supporting functionality:
- The module protocol in `commands` promises has been extended to allow setting
  of tags of created variables and classes, and the context of created variables
- `getclassmetatags` - returns list of meta tags for a class
- `getvariablemetatags` - returns list of meta tags for a variable
- `body file control` has an `inputs` attribute to include library files and other
  dependencies
- bundlesequences can be built with bundlesmatching() based on bundle name and tags
- New attributes in existing promise types and bodies
  - New option `preserve_all_lines` for insert_type in insert_lines promises
  - Caching of expensive system functions to avoid multiple executions of
    execresult() etc, can be controlled via cache_system_functions attribute in
    body common control
  - New option `mailsubject` in body executor control allows defining the subject
    in emails sent by CFEngine
  - Support for Mustache templates in `files` promises; use `template_method` and
    `template_data` attributes. Without `template_data` specified, uses datastate().
- New and improved functions
  - `bundlesmatching` - returns list of defined bundles matching a regex and tags
  - `canonifyuniquely` - converts a string into a unique, legal class name
  - `classesmatching` - returns list of set classes matching a regex and tags
  - `eval` - evaluates mathematical expressions; knows SI k, m, g quantifiers, e.g. "100k"
  - `findfiles` - list files matching a search pattern; use "\*\*" for recursive searches
  - `makerule` - evaluates whether a target file needs to be rebuilt from sources
  - `max`, `min` - returns maximum and minimum of the numbers in a container or list
    (sorted by a `sort` method)
  - `mean` - returns the mean of the numbers in a container or list
  - `nth` - learned to look up by key in a data container holding a map
  - `packagesmatching` - returns a filtered list of installed packages.
  - `readfile` - learned to read system files of unknown size like those in /proc
  - `sort` - can sort lexicographically, numerically (int or real), by IP, or by MAC
  - `string_downcase`, `string_upcase` - returns the lower-/upper-case version of a
    string
  - `string_head`, `string_tail` - returns the beginning/end of a string
  - `string_length` - returns the length of a string
  - `string_reverse` - reverses a string
  - `string_split` - improved implementation, deprecates `splitstring`
  - `variablesmatching` - returns a list of variables matching a regex and tags
  - `variance` - returns the variance of numbers in a list or container
- New hard classes
  - Introduced alias `policy_server` for context `am_policy_hub` (the latter will
    be deprecated)
  - all the time-based classes have GMT equivalents
- New variables
  - `sys.bindir` - the location of the CFEngine binaries
  - `sys.failsafe_policy_path` - the location of the failsafe policy file
  - `sys.inputdir` - the directory where CFEngine searches for policy files
  - `sys.key_digest` - the digest of the host's cryptographic key
  - `sys.libdir`, `sys.local_libdir` - the location of the CFEngine libraries
  - `sys.logdir` - the directory where the CFEngine log files are saved
  - `sys.masterdir` - the location of masterfiles on the policy server
  - `sys.piddir` - the directory where the daemon pid files are saved
  - `sys.sysday` - the number of days since the beginning of the UNIX epoch
  - `sys.systime` - the number of seconds since the beginning of the UNIX epoch
  - `sys.update_policy_path` - the name of the update policy file
  - `sys.uptime` - the number of minutes the host has been online
  - `this.promise_dirname` - the name of the file in which the current promise
    is defined
  - `this.promiser_uid` - the ID of the user running cf-agent
  - `this.promiser_gid` - the group ID of the user running cf-agent
  - `this.promiser_ppid` - the ID of the parent process running cf-agent

Deprecations:

- `splitstring` - deprecated by `string_split`
- `track_value`
- `skipverify`

Bug fixes: for a complete list of fixed bugs, see Redmine at https://cfengine.com/dev

- Various fixes in evaluation and variable resolution
- Improved performance of list iteration (Redmine #1875)
- Removed limitation of input length to internal buffer sizes
  - directories ending with "/" are not ignored
  - lsdir() always return a list now, never a scalar
- `abortclasses` fixed to work in common bundles and other cases
- Namespaced `edit_line` bundles now work (Redmine#3781)
- Lists are interpolated in correct order (Redmine#3122)
- cf-serverd reloads policies properly when they change
- Lots of leaks (memory and file descriptor) fixed

## 3.5.3

Changes:

- Improved security checks of symlink ownership. A symlink created by a user pointing
  to resources owned by a different user will no longer be followed.
- Changed the way package versions are compared in package promises. (Redmine #3314)
  In previous versions the comparison was inconsistent. This has been fixed, but may
  also lead to behavior changes in certain cases. In CFEngine 3.5.3, the comparison
  works as follows:
  ```
  <package-being-considered> <package_select> <package_version>
  ```
  For instance:
  apache-2.2.31 ">=""2.2.0"
  will result in the package being installed.

Bug fixes:

- Fixed cf-monitord crash due to incorrect array initialization (Redmine #3180)
- Fixed cf-serverd stat()'ing the file tree every second (Redmine #3479)
- Correctly populate sys.hardware_addresses variable (Redmine #2936)
- Added support for Debian's GNU/kfreebsd to build system (Redmine #3500)
- Fixed possible stack corruption in guest_environments promises (Redmine #3552)
- Work-around hostname trunctation in HP-UX's uname (Redmine #3517)
- Fixed body copy purging of empty directories (Redmine #3429)
- Make discovery and loading of avahi libraries more robust
- Compile and packaging fixes for HP-UX, AIX and Solaris
- Fixed fatal error in lsdir() when directory doesn't exist (Redmine #3273)
- Fixed epoch calculation for stime inrange calculation (Redmine #2921)

## 3.5.2

Bug fixes:

- Fixed delayed abortclasses checking (Redmine #2316, #3114, #3003)
- Fixed maplist arguments bug (Redmine #3256)
- Fixed segfaults in cf-pomises (Redmine #3173, 3194)
- Fixed build on Solaris 10/SmartOS (Redmine #3097)
- Sanitize characters from /etc/issue in sys.flavor for Debian (Redmine #2988)
- Fixed segfault when dealing with files or data > 4K (Redmine #2912, 2698)
- Don't truncate keys to 126 characters in getindices (Redmine #2626)
- Files created via `log_*` actions now have mode 600 (Redmine #1578)
- Fixed wrong log message when a promise is ignored due to `ifvarclass` not matching
- Fixed lifetime of persistent classes (Redmine #3259)
- Fixed segfault when process_select body had no process_result attribute
  Default to AND'ed expression of all specified attributes (Redmine #3224)
- Include system message in output when acl promises fail
- Fixed invocation of standard_services bundle and corresponding promise compliance (Redmine #2869)

## 3.5.1

Changes:

- File changes are logged with log level Notice, not Error
- The CFEngine Standard Library in masterfiles/libraries is now split into
  promise-type specific policy files, and lives in a version-specific directory.
  This should have no impact on current code, but allows more granular include of
  needed stdlib elements (Redmine #3044)

Bug fixes:

- Fixed recursive copying of files (Redmine #2965)
- Respect classes in templates (Redmine ##2928)
- Fixed timestamps on Windows (Redmine #2933)
- Fixed non-root cf-agent flooding syslog (Redmine #2980)
- Fixed email flood from cf-execd due to timestamps in agent output (Redmine #3011)
- Preserve security context when editing or copying local files (Redmine #2728)
- Fixed path for sys.crontab on redhat systems (Redmine #2553)
- Prevent incorrect "insert_lines promise uses the same select_line_matching anchor" warning (Redmine #2778)
- Fixed regression of setting VIPADDRESS to 127.0.0.1 (Redmine #3010)
- Fixed "changes" promise not receiving status when file is missing (Redmine #2820)
- Fixed symlinks being destroyed when editing them (Redmine #2363)
- Fixed missing "promise kept" status for the last line in a file (Redmine #2943)

## 3.5.0

New features:

- classes promises now take an optional scope constraint.
- New built-in functions: every, none, some, nth, sublist, uniq, filter
  - every
  - none
  - some
  - nth
  - sublist
  - uniq
  - filter
  - classesmatching
  - strftime
  - filestat
  - ifelse
  - maparray
  - format
- cf-promises flag --parse-tree is replaced by --policy-output-format=, requiring the
  user to specify the output format (none, cf, json)
- cf-promises allows partial check of policy (without body common control) without integrity check;
  --full-check enforces integrity check
- Agent binaries support JSON input format (.json file as generated by cf-promises)
- cf-key: new options --trust-key/-t and --print-digest/-p
- Class "failsafe_fallback" is defined in failsafe.cf when main policy contains errors and
  failsafe is run because of this
- Added scope attribute for body classes (Redmine #2013)
- Better diagnostics of parsing errors
- Error messages from parser now show the context of error
- New cf-agent option: --self-diagnostics
- New output format, and --legacy-output
- Warnings for cf-promises.
- Enabled zeroconf-discovery of policy hubs for automatic bootstrapping
  if Avahi is present
- Support for sys.cpus on more platforms than Linux & HPUX

Changes:

- Parser no longer allows `,` after promiser or promisee. must be either `;` or lval
- Make parser output in GCC compatible format the only supported format
  (remove --gcc-brief-format flag)

- Silence license warnings in Enterprise Free25 installations
- action_policy => "warn" causes not_kept classes to be set on promise needing repair.
- Command line option version (-V) now prints a shorter parsable version without graphic
- Implicit execution of server and common bundles taking arguments is skipped in cf-serverd.
- WARNING: option --policy-server removed, require option to --bootstrap instead
- process promises don't log if processes are out of range unless you
  run in verbose mode
- reports promises are now allowed in any context (Redmine #2005)
- cf-report has been removed
- cf-execd: --once implies --no-fork
- Version info removed from mail subject in the emails sent by cf-execd.
  The subject will only contain "[fqname/ipaddress]" instead of "communnity/nova [fqname/ipaddress]"
  Please change your email filters accordingly if necessary.
- "outputs" promise type is retired. Their semantics was not clear, and the functionality
  is better suited for control body setting, not a promise.
- Tokyo Cabinet databases are now automatically checked for
  correctness during opening. It should prevent a number of issues
  with corrupted TC databases causing binaries to hang.
- Improved ACL handling on Windows, which led to some syntax changes. We now consistently
  use the term "default" to describe ACLs that can be inherited by child objects. These
  keywords have received new names:
  - acl_directory_inherit -> acl_default
  - specify_inherit_aces -> specify_default_aces

  The old keywords are deprecated, but still valid. In addition, a new keyword
  "acl_inherit" controls inheritance behavior on Windows. This feature does not exist on
  Unix platforms. (Redmine #1832)

- Networking code is moved from libpromises to its own library,
  libcfnet. Work has begun on making the API more sane and thread-safe.
  Lots of legacy code was removed.
- Added getaddrinfo() replacement in libcompat (borrowed from PostgreSQL).
- Replace old deprecated and non thread-safe resolver calls with
  getaddrinfo() and getnameinfo().
- Hostname2IPString(), IPString2Hostname() are now thread-safe, and are
  returning error when resolution fails.
- Running cf-execd --once now implies --no-fork, and also does not wait
  for splaytime to pass.
- execresult(), returnszero() and commands promises no longer requires the first word
  word to be an absolute path when using the shell. (Part of Redmine #2143)
- commands promises useshell attribute now accepts "noshell" and "useshell" values. Boolean
  values are accepted but deprecated. (Part of Redmine #2143)
- returnszero() now correctly sets the class name in this scenario (Part of
  Redmine #2143):
  ```
  classes:
    "commandfailed" not => returnszero("/bin/nosuchcommand", "noshell");
  ```

Bugfixes:

- Bundles are allowed to be empty (Redmine #2411)
- Fixed `.` and `-` not being accepted by a commands module. (Redmine #2384)
- Correct parsing of list variables by a command module. (Redmine #2239)
- Fixed issue with package management and warn. (Redmine #1831)
- Fixed JSON crash. (Redmine #2151)
- Improved error checking when using fgets(). (Redmine #2451)
- Fixed error message when deleting nonexistent files. (Redmine #2448)
- Honor warn-only when purging from local directory. (Redmine #2162)
- Make sure "restart" and "reload" are recognized keywords in packages. (Redmine #2468)
- Allocate memory dynamically to avoid out-of-buffer or out-of-hash
  situations
- Fixed edit_xml update of existing attributes (Redmine #2034)
- Use failsafe policy from compile-time specified workdir (Redmine #1991)
- ifvarclass checked from classes promises in common bundles
- Do not wait for splaytime when executing only once
- Disable xml editing functionality when libxml2 doesn't provide necessary APIs (Redmine #1937)
- Out-of-tree builds should work again, fixed a bunch of related bugs.
- Fixed race condition in file editing. (Redmine #2545)
- Fixed memory leak in cf-serverd and others (Redmine #1758)

## 3.4.5: (Bugfix and stability release)

Bugfixes:

- Make qualified arrays expand correcty (Redmine #1998, Mantis #1128)
- Correct possible errors in tcdb files when opening
- Avoid possible db corruption when mixing read/write and cursor operations
- Allow umask value of 002 (Redmine #2496)

## 3.4.4: (Bugfix and stability release)

Bugfixes:

- Prevent possible crash when archiving files (GitHub #316)
- Don't create symlinks to cf-know in update policy
- Don't enable xml support if libxml2 is too old (Redmine #1937)

## 3.4.3: (Bugfix and stability release)

Bugfixes:

- Don't flood error messages when processes are out of defined range
- Prevent segmentation fault in cf-monitord -x (Redmine #2021)
- When copying files, use same file mode as source file, rather than 0600 (Redmine #1804)
- Include xpath in messages generated by edit_xml operations (Redmine #2057)

## 3.4.2: (Bugfix and stability release)

Bugfixes:

- Fixes to policies in masterfiles (see masterfiles/Changelog for details)
- Fixes for OpenBSD (GitHub #278)
- Do not canonify values specified in abortbundleclasses/abortclasses (Redmine #1786)
- Fixed build issues on NetBSD, SLES 12.2
- Improved error message when libxml2 support is not compiled (Redmine #1799)
- Fixed potential segmentation fault when trimming network socket data (GitHub #233)
- Fixed potential segmentation fault when address-lookups in lastseen db failed (GitHub #233)
- Execute background promise serially when max_children was reached, rather
  than skipping them (GitHub #233)
- Fixed segmentation fault in cf-promises when invoked with --reports (Redmine #1931)
- Fixed compilation with Sun Studio 12 (Redmine #1901)
- Silence type-pun warning when building on HP-UX (GitHub #287)

## 3.4.1: (Bugfix and stability release)

New feature/behavior:

- cf-execd terminates agent processes that are not responsive
  for a configurable amount of time (see agent_expireafter in body
  executor control), defaulting to 1 week

Bugfixes:

- Fixed regression of classmatch() failing with hard classes (Redmine #1834)
- Create promise-defined and persistent classes in correct
  namespace (Redmine #1836)
- Several fixes to namespace support
- Fixed several crash bugs caused by buffer overflow and race
  conditions in cf-serverd
- Regenerate time classes in cf-execd for each run (Redmine #1838)
- edit_xml: fix select_xpath implementation and update documentation
  NOTE: code that uses select_xpath_region needs to be changed to
  select_xpath
- edit_xml: make sure that text-modification functions don't overwrite
  child nodes
- edit_xml: improve error logging

## 3.4.0

New features:

- Added rpmvercmp utility to compare versions of RPM packages for
  accurate sorting of RPM packages for packages promises.
- Implement network timeout on server side to avoid keeping stale
  connections for hours.
- XML editing capabilities. See the documentation for edit_xml
  body. Note the new dependency: libxml2.
- Implement inheritance of local classes by bundles called using
  "usebundle". By default classes are not inherited. See the
  examples/unit_inherit.cf for an example.
- Moved from Nova/Enterprise:
  - POSIX ACL support,
  - "outputs" promise type,
  - remote syslog support.
- packages_default_arch_command hook in packages promises, to
  specify default architecture of the packages on the system.
- packages_version_less_command / packages_version_equal_command hooks
  in packages promises, to specify external command for native package
  manager versions comparison
- agent_expireafter in body executor control allows you to set a
  timeout on all cf-agent runs, to enforce a threshold on the
  number of concurrent agents
- Running in Solaris zone is now detected and classes `"zone"` and
  `"zone_<name>"` are created in this case.
- VirtualBox support added to guest_environment promises.
- guest_environment promises are supported under OS X.
- The "depends_on" attribute is now active, for the partal ordering
  of promises. If a promise depends on another (referred by handle)
  it will only be considered if the depends_on list is either kept
  or repaired already.

  \*\* WARNING: When upgrading, make sure that any existing use
  of depends_on does not make some promises being
  unintentionally ignored. This can happen if you are
  currently referring to non-existent or never-run handles
  in depends_on attributes.

- methods return values, initial implementation
- New format for cf-key -s, includes timestamp of last connection
- cf-promises --parse-tree option to parse policy file and dump it
  in JSON format
- Namespaces support for bundles and bodies. See the
  `examples/unit_namespace*.cf` for the usage.
- Default arguments for bundles. See the examples/unit_defaults.cf
- Metadata promise type. See the examples/unit_meta.cf

New semantics:

- Methods promises now return the status of promises
  kept within them. If any promise was not kept, the method is not
  kept, else if any promise is repaired, the method was repaired
  else it was kept.
- Remote variable access in namespaces by $(namespace:bundle.variable)

Changed functionality:

- cf-execd -F switch no longer implies `run once`. New -O/--once
  option is added to achieve this behaviour. This makes cf-execd
  easier to run from systemd, launchd and other supervision
  systems.

Misc:

- Support for the following outdated platforms and corresponding
  classes has been removed. De facto those platforms were
  unsupported for a long time, as CFEngine codebase uses C99
  language features unavailable on old platforms:

- SunOS 3.x (sun3)
- SunOS 4.x (sun4)
- Ultrix (ultrix)
- DEC OSF/1 AXP (osf)
- Digital UNIX (digital)
- Sony NEWS (newsos)
- 4.3BSD (bsd4_3)
- IRIX (irix, irix4, irix64)
- IBM Academic Operating System (aos)
- BSD/OS / BSDi / BSD/386 (bsdos)
- NeXTSTEP (nextstep)
- GNU Hurd (gnu)
- NEC UX/4800 (ux4800)
- (Old news) Since 3.3.0 the layout of CFEngine Community packages
  has changed slightly.

  `cf-*` binaries have been moved to /var/cfengine/bin, due to the
  following reasons:
  - `cf-*` binaries are linked to libraries installed to
    /var/cfengine/lib, so placing binaries in /usr/local/sbin does not
    increase reliability of the CFEngine,
  - keeping whole CFEngine under single prefix (/var/cfengine)
    makes packaging simpler,
  - it matches the layout of CFEngine Enterprise packages.

  Please adjust your policies (the recommended ways to deal with
  the move are either to adjust $PATH to include /var/cfengine or to
  create symlinks in /usr/local/sbin in case you are relying on
  binaries to be available in $PATH).

- Workdir location is properly changed if --prefix or --enable-fhs
  options are supplied to configure (Mantis #1195).
- Added check for broken libmysqlclient implementations (Mantis #1217).
- Standard library is updated from COPBL repository.
- cf-know is no longer built in Community releases. The only
  functionality useful in Community, namely the reference manual
  generation, is provided by new compile-time cf-gendoc tool.
- Filename (for storing filechanges) changed
  from file_change.log -> file_changes.log (in /var/cfengine/state)

  New format for storing file changes introduced:
  [timestamp,filename,<N/C/S/R>,Message]

  N = New file found
  C = Content Changed
  S = Stats changed
  R = File removed

- Acceptance test suite passes on Mac OS X.
- Changed some port numbers to replace old services with imap(s)
- archlinux hard class on Arch Linux.
- Detect BSD Make and automatically switch to GNU Make during build.

Bugfixes:

- cfruncommand for cf-execd is an arbitrary shell command now (Mantis #1268).
- Fixed broken "daily" splayclasses (Mantis #1307).
- Allow filenames up to 4096 bytes in network transfers (Redmine #1199).
- Fixed stale state preserved during cf-serverd reload (Redmine #1487).
- Free disk space calculation is fixed (Mantis #1120).
- Numerous portability bugfixes (especially OpenBSD, Solaris, AIX-related).
- Compatibility fixes for AIX, HP-UX, Solaris (Mantis #1185, Mantis #1177, Mantis #1109).
- Fixed broken socklen_t configure check under OpenBSD (Mantis #1168).
- Fixed hang in cf-promises under OpenBSD (Mantis #1113).
- Fixed endless loop in evaluating "$()" construct (Mantis #1023).
- Fixed check for old PCRE versions (Mantis #1262).
- Fixed insertion of multi-line blocks at the start of file (Mantis #809).
- Fixed numerous memory leaks.
- Fixes for metadata that were not resolvable
- Fixes for namespaces that would not support metadata and variable expansion
- Point-to-point network interfaces are detected and reported by CFEngine (Mantis #1246)
- Partial non-GNU userspace support in acceptance testsuite (Mantis #1255)

Full list of issues fixed is available on
https://cfengine.com/bugtracker/changelog_page.php (old bug tracker)
and https://cfengine.com/dev/projects/core/versions/34 (new bug tracker)

## 3.3.9: (Bugfix and stability release)

Bugfixes:

- Do not lose hard classes in cf-serverd during policy reload
  (Mantis #1218).
- Implement receive network timeout in cf-serverd. Prevents
  overloading cf-serverd with stale connections.

## 3.3.8: (Bugfix and stability release)

Versions 3.3.6, 3.3.7 were internal and weren't released.

Bugfixes:

- Propery set sys.domain variable if hostname is fully-qualified.
- Fixed several small memory leaks.
- Make network timeout for network reads configurable. Previously
  it was hardcoded to be 30 seconds, which was not enough for
  cf-runagent invoking cf-agent on big policies (Mantis #1028).

## 3.3.5: (Bugfix and stability release)

Bugfixes:

- Fixed cf-execd memory leak on hosts with cf-monitord running.
- Robustify against wrongly-sized entires in embedded databases.

Standard library:

- Bugfixes from upstream COPBL repository.
- standard_services bundle from upstream COPBL repository.

## 3.3.4: (Bugfix and stability release)

Evaluation of policies:

- Fixed wrong classes set after installation of several packages
  using packages promises (Mantis #829).
- Fixed segfault using edit_template on existing file (Mantis #1155).

Misc:

- Fixed memory leak during re-read of network interfaces`
  information in cf-execd/cf-serverd.

## 3.3.3: (Bugfix and stability release)

Evaluation of policies:

- Zero-length files are valid for readfile() and similar functions
  (Mantis #1136).
- Unchoke agent in case it encounters symlinks in form ./foo
  (Similar to Mantis #1117).

Misc:

- Fixed generation of reference manual on machines with umask more
  relaxed than 022.
- Use statvfs(3) on OpenBSD to obtain filesystem information
  (Mantis #1135).

## 3.3.2: (Bugfix and stability release)

Evaluation of policies:

- Do not segfault if file copy was interrupted due to network
  connectivity or server going away (Mantis #1089).
- Do not segfault if log_failed attribute is present in body, but
  log_kept is not (Mantis #1107).
- Do not mangle relative paths in symlinks during file copy
  Previously symlink a -> b was mangled to a -> ./b.
  (Mantis #1117)
- Properly compare 1.0 and 1.0.1 in packages promises. Previously
  only versions with equal amount of "segments" were comparable
  (Mantis #890, #1066).

Base policy:

- Properly set permissions on files for /var/cfengine/lib on HP-UX
  (Mantis #1114).
- Standard library (cfengine_stdlib.cf) is synced with COPBL
  repository.

Misc:

- Do not create huge file in case corrupted TokyoCabinet database
  is detected (Mantis #1106).
- Fixed file descriptor leak on error paths, may have caused crashes
  of cf-execd and cf-serverd (Issue #1096).
- Fixed intermittent segfault in cf-execd (Mantis #1116).
- Impose an upper limit on amount of listening sockets reported by
  cf-monitord. Huge amounts of listening sockets caused cf-agent to
  segfault on next run (Mantis #1098).
- Added missing function prototypes caused errors during compilation
  on HP-UX (Mantis #1109).
- Fixed compilation on Solaris 11 (Mantis #1091).

## 3.3.1: (Bugfix and stability release)

Evaluation of policies:

- Do not cut off name of bundle in variables interpolation (Mantis #975).
- Do not segfault in function evaluation guarded by ifvaclass clause (Mantis #1084, #864).
- Do not segfault if "classes" promise does not declare any value to be evaluated (Mantis #1074).
- Do not segfault in database promises if there is no
  database_operation provided (Mantis #1046).

Built-in functions:

- Fixed countclassesmatching() function which was misbehaving trying
  to match classes starting with alphanumeric symbol (Mantis #1073).
- Fixed diskfree() to return kilobytes, as described in documentation (Mantis #980, #955).
- Fixed hostsseen() function to avoid treating all hosts as not
  being seen since 1970 (Mantis #886).
- Do not output misleading error message if readtcp() is unable to connect (Mantis #1085).

Command-line interface:

- -d option previously reqired an argument, though help message disagreed (Mantis #1053).
- Disable --parse-tree option, not ready for the release (Mantis #1063).
- Acept -h as a --help option.
- Ensure that cf-execd might be started right after being shut down.

Misc:

- Plug file descriptor leak after failed file copy (Mantis #990).
- Fixed unsafe admit rules in default promises.cf (Mantis #1040).
- Fixed splaytime to match documentation: it is specified in minutes, not seconds (Mantis #1099).

Packaging:

- Fixed owner/group of initscript and profile.d snippet in RPM builds (Mantis #1061, #1058).
- Fixed location of libvirt socket CFEngine uses to connect to libvirtd (Mantis #1072).
- Install CoreBase to /var/cfengine/masterfiles during installation (Mantis #1075).
- Do not leave old cf-twin around after upgrade (Mantis #1068)
- Do not leave rcS.d symlinks after purging .deb package (Mantis #1092).

## 3.3.0

New promise types:

- Guest environments promises, which allow to manipulate virtual
  machines using libvirt.
- Database promises, which allow to maintain schema of MySQL and
  PostgreSQL databases. Database promises are in "technical preview"
  status: this promise type is subject to change in future.
- Services promises for Unix, allows abstraction of details
  on managing any service

New built-in functions:

- dirname() to complement lastnode()
- lsdir()
- maplist() to apply functions over lists

New features:

- Allow defining arrays from modules.
- Allow both process_stop` and signals` constraints in
  processes` promises at the same time.
- cf-promises --gcc-brief-format option to output warnings and
  errors in gcc-compatible syntax which to ease use "go to next
  error" feature of text editors.
- Iteration over lists is now allowed for qualified (non-local) lists.

New built-in variables and classes (Linux):

- Number of CPUs: $(sys.cpus), 1_cpu, 2_cpus etc

New built-in variables and classes (Unices):

- `$(sys.last_policy_update)` - timestamp when last policy change was seen by host
- `$(sys.hardware_addresses)` - list of MAC adresses
- `$(sys.ip_addresses)` - list of IP addresses
- `$(sys.interfaces)` - list of network interfaces
- `$(sys.hardware_mac[$iface])` - MAC address for network interface
- `mac_<mac_address>::` - discovered MAC addresses

Changes:

- Major cleanup of database handling code. Should radically decrease
  amount of database issues experienced under heavy load.

  _WARNING_: Berkeley DB and SQLite backends are _removed_, use
  Tokyo Cabinet or QDBM instead. Both Tokyo Cabinet and QDBM are
  faster than Berkeley DB in typical CFEngine workloads.

  Tokyo Cabinet requires C99 environment, so it should be
  available on every contemporary operating system.

  For the older systems QDBM, which relies only on C89, is a
  better replacement, and deemed to be as portable, as Berkeley DB.

- Change of lastseen database schema. Should radically decrease
  I/O contention on lasteen database.
- Automatic reload of policies by cf-execd.
- Documentation is generated during build, PDF and HTML files are
  retired from repository.
- Rarely used feature retired: peer connectivity intermittency calculation.
- Memory and CPU usage improvements.
- Testsuite now uses `make check` convention and does not need root
  privileges anymore.
- cf_promises_validated now filled with timestamp, allows digest-copy
  for policy instead of mtime copy which is safer when clocks are unsynchronised
- The bundled failsafe.cf policy now has trustkey=false to avoid IP spoofing
  attacks in default policy
- See the full list of bugfixes at
  https://cfengine.com/bugtracker/changelog_page.php

## 3.2.4: (Bugfix and stability release)

- Fixed failure in network transfer in case of misbehaving peer
- A few tiny memory leaks on error paths fixed

## 3.2.3: (Bugfix and stability release)

- A few tiny memory leaks fixed
- Improved performance of cf-serverd under heavy load with
  TokyoCabinet database
- Full list of issues fixed is available on
  https://cfengine.com/bugtracker/changelog_page.php

## 3.2.2: (Bugfix and stability release)

- Enabled compilation in "large files" mode under AIX
- Alleviated problem with broken file transfers over unstable
  internet links.
- Full list of issues fixed is available on
  https://cfengine.com/bugtracker/changelog_page.php

## 3.2.1: (Bugfix and stability release)

- Fixed compilation under HP-UX and Solaris
- Enabled compilation using HP ANSI C compiler
- Full list of issues fixed is available on
- https://cfengine.com/bugtracker/changelog_page.php

## 3.2.0

New bootstrap method with single-command bootstrapping:

- cf-agent --bootstrap --policy-server 123.456.789.123
- Associated policy template files are added, partially maintained
  by CFEngine
- Bug fixes for file-editing, package versioning, and embedded
  database corruption (We recommend using TokyoCabinet instead of
  BerkeleyDB if building from source).
- Improved upgrade path for Nova.
- Patches for improved run-agent concurrency
- Reorganization of documentation and community resources
- 100% on regression test suite on 3 operating systems
  (Ubuntu, Debian, SuSE on x86-64 hardware)
- Support for multiple release environments
- package_policy update and addupdate now check if user-supplied
  version is larger than currently installed - updates only if so
- Help text of cf-report -r corrected - a list of key hashes is
  required, not ip addresses.
- New Emacs mode for CFEngine policy files (thanks to Ted Zlatanov!)
- Warnings are on edit_line changes can now give greater degree of information
  without spamming promise logs
- Class expressions parser accepts `||` as an alias for `|` again.
- Invalidation of package list cache on installation/removal of
  packages.
- New option cf-key -r to remove host key by IP or hostname.
- Added detection of network interfaces which belong to BSD jails.
- Improved robustness of multi-threaded code, in particular fix
  problems with spurious access denials in server and losing of
  authentication rules after policy reload.
- cf-promises accepts option -b matching cf-agent, which causes it
  to do not complain about missing bundlesequence.
- New functions and(), not(), or() and concat() to ease use of
  ifvarclass() clause.
- Full list of issues fixed is available on
  https://cfengine.com/bugtracker/changelog_page.php

## 3.1.5

- New class parser, `||` is no longer allowed in expressions (use `|`).
- Class setting in the promise types insert_lines, delete_lines,
  replace_patterns, field_edits, vars, classes is restored.
- suspiciousnames implemented.
- New function getvalues().
- New functions parse{read,int,string}array to match read{read,int,string}array.
- Testsuite added to check for core functionality.
- Syslog prefix is fixed to say `cf3` instead of `community`.

## 3.1.4: (Bugfix and stability release)

- Some urgent patches to 3.1.3.
- Class validation parse bug fixed.
- Global zone handling error for solaris fixed.
- Package architectures handled correctly (bug #456).
- Reading and writing of key name "root-.pub" eliminated (bug #442, #453).
- cf-serverd crash because of race condition on SERVER_KEYSEEN fixed.
- Lock purging to avoid remnant complexity explosion (bug #430).
- Some copyright notices added that got lost.

## 3.1.3: (Stability release)

- Major memory leaks in cf-monitord, cf-execd, cf-serverd fixed (bug #427).
  The daemons now show no growth even with very complex policies.
- cf-serverd crash due to race condition in DeleteScope() fixed (bug #406).
- Added 30 second timeout on recv() on Linux.
- package_noverify_returncode implemented (bug #256).
- A flexible mechanism for setting classes based on return codes of
  commands has been introduced. Allows for setting promise kept,
  repaired or failed based on any return codes. This is currently
  implemented for commands-promises, package-manager commands and
  transformer in files. In classes body, see attributes
  kept_returncodes, repaired_returncodes, failed_returncodes (bug
  #248, #329).
- New function ip2host - reverse DNS lookup (bug #146).

## 3.1.2: (Scalability/efficiency release)

- Big efficiency improvements by caching output from
  cf-promises. Can also be used for much more efficient policy
  deployment (only pull if changed).
- Caching state of ps command for greater efficiency. Reloaded for each bundle.
- Index class lookup improves efficiency of class evaluation for huge configurations.
- Fixed issue where certain promiser strings got corrupted.
- Minor memory access issues fixed.
- Iterator bug introduced in 3.1.0 fixed

## 3.1.1: (Bugfix release)

- Memory leaks in server tracked down and fixed.
- List expansion bug (one list items not executed) fixed.
- Security issue introduced by change of runcommand shell policy fixed. If users defined a runcommand for cf-runagent/cf-serverd communication, possible to execute commands.
- cf-key -s command for showing key hash/IP address identity pairs

## 3.1.0

- Change in storage of public keys. Cfengine now hashes the public key and uses this
  as the keyname. Keys will be converted automatically.
- The old dynamic addresses lists are deprecated.
  Caching of dns and key information for greater server speed.
  Change in last-seen format reflects the public key usage.
- New package policy addupdate - installs package if not there and
  updates it otherwise.
- Support for package_changes => "bulk" in file repository as well.
- New special function readstringarrayidx, similar to readstringarray,
  but uses integer indices. Very useful if first row elements are
  not good identifiers (e.g. contains spaces, non-unique, etc.).
- Change two log formats to use time() instead of date()
  - filechanges
  - total compliance
- Change from using md5 to sha256 as default digest for commercial version,
  community retains md5 for compat.
- Commands not returning 0 in commands-promises are flagged
  as repair_failed.
- Adjustable timeout on connect(). Defaults to 10 seconds, adjustable
  with default_timeout in agent control.
- Redesign of the knowledge map infrastructure.
- Now possible to use variables to call methods, e.g
  ```
  methods:
    "name $(list)" usebundle => $(list)("abc");
  ```
  See reference manual notes
- Changes to normal ordering to optimize execution.
- Increased stability by always initializing Attribute and Promise
  structures.
- When running cf-promises in dry-run mode (-n), the user does not need
  to put binaries in WORKDIR/bin. For example, non-privileged users can verify root
  policies.
- Source control revision added in version string if run in verbose mode
  (e.g. "cf-promises -vV"). This needs some refining, uses revision of a header now.
- New semantics in return values of list functions. Null values are now allowed
  and there is no iteration over empty lists. The value "cf_null" is reserved for
  use as a null iterator.

## 3.0.5p1

- Showing paths allowed/denied access to when cf-serverd is run in verbose mode.
- Bug in server fixed for dynamic addresses.
- File handle closure bugfix - too many open databases.
- Seg fault in mount files fix.
- Twin used in cf-execd without checking.
- Check_root set wrong directory permissions at source not destination.
- Error message degraded in body definition.
- Undefined body not warned as error.
- Various build enahncements.
- Package_list_update called only once per manager, and fixed crash.
- Version number bug in packages.

## 3.0.5

- Encryption problems fixed - client key buffer was uninitialized.
- Classes-promisers are now automatically canonified when class
  strings are defined, to simplifying the use of variables in classes.
- New scalars sys.cf_version and sys.nova_version that hold Cfengine version information.
- Attribute package_delete_convention added, to allow customizable
  package name in delete command during update.
- package_list_update_ifelapsed limit added.
- Private variable $(firstrepo) is available in package_name_convention
  and package_delete_convention in order to expand the full path to
  a package, which is required by some managers.
- Some of the threading code is rewritten and made more robust. This includes
  synchronizing access to the lastseen database from the server.
- Bad initialization of BSD flags fixed
- Multiple variable expansion issues in control fixed for server and agent
- Allow ignore_missing_bundles to affect methods: bundles too
- Run agent trust dialogue fixed
- Bug in CPU monitoring, increasing time scale caused linear decay
  of CPU measurement.
- Bug in Setuid log storage, fix.
- Hooks added for new Nova virtualization promises.
- Multithreading mutex failed to collide during cfservd leading to dropped authentication under heavy load.

## 3.0.4

- Class cancellation in promises to create better class feedback,
  allows emulation of switch/case semantics etc
- Value of SA measurement promises
- Special function getenv() which returns the contents of an
  environment variable (on all platforms).
- New function translatepath for generic Windows
- New function escape() to escape literals as regular expressions (like SQL)
- New function host2ip for caching IP address lookup
- New function regextract for setting variables with backreferences
- New variables for the components $(sys.cf_agent), $(sys.cf_know) etc
  pointing to the binaries.
- More robust integrated database implementation; closing all
  handles when receiving signals, self-healing on corruption.
- Package installation on localhost without a manager like yum completed,
  multiple repositories searched, and universal methods.
- Numerous bugfixes

## 3.0.3

- sha256 .. new hashes in openssl included in syntax tree.
- End of line autocropping in readfile (hopefully intelligent)
- hashmatch function incorrectly implemented - old debugging code left behind. Fix.
- sys.crontab variable
- Unknown user is now interpretated as "same user", so that we give CFEngine a chance to
  fix
- Unregistered addresses no longer report "(Non registered IP)", but return as the address
  itself when doing reverse lookups.

## 3.0.2

- IMPORTANT: Change in normal ordering of editing. replace comes
  after insert lines Much testing and minor bug fixing
- Memory leaks fixed
- Many hooks added for Nova enterprise extensions.
- promise_output reports now placed in WORKDIR/reports directory
- Initialization correction and self-correx in monitord
- Many new body constraints added.
- Code readied for enterprise version Nova.
- -b option can override the bundlesequence (must not contain parameters yet)
- collapse_destination_dir option added to copy so that files can be
  aggregated from subdirectories into a single destination.

## 3.0.1

- First standalone release, independent of CFEngine 2
  Purge old definitions and check consistency.
- NB: changed search_mode to be a list of matching values
- Reporting rationalized in cf-promises with -r only to avoid
  leaving output files everywhere.
- Hooks added for upcoming commercial additions to CFEngine.
- Added classify() and hostinnetgroup() functions
- Added additional change management options for change detection
- Package management added - generic mechanisms.
- Limits on backgrounding added to avoid resource contention during CFEngine runs.
- Image type added to cf-know.
- New classes for quartly shifts: Morning,Afternoon,Evening,Night
- Bug fixes in editfiles - line insertion for multiple line objects
- Change the name of the variables and context from the monitord for
  better separation of data, and shorter names. sys -> mon
  average -> av, stddev -> dev
- Canonical name for windows changed from "nt" to "windows", also version names
  added "vista","xp" etc..
- License notices updated for dual license editions.

## 3.0.0

- First release of CFEngine 3. Known omissions:
  - no support for ACLs
  - no support for packages
  - no support for interface configuration
- These will be added in the next release.
