-# Icinga 2.x CHANGELOG
+# Icinga 2 CHANGELOG
+
+Please make sure to always read our [Upgrading](https://icinga.com/docs/icinga2/latest/doc/16-upgrading-icinga-2/)
+documentation before switching to a new version.
+
+Released closed milestones can be found [here](https://github.com/Icinga/icinga2/milestones?state=closed).
+
+
+## 2.11.0 RC1 (2019-07-25)
+
+[Issue and PRs](https://github.com/Icinga/icinga2/issues?utf8=%E2%9C%93&q=milestone%3A2.11.0)
+
+### Notes
+
+**This is the first release candidate for 2.11.**
+
+Upgrading docs: https://icinga.com/docs/icinga2/snapshot/doc/16-upgrading-icinga-2/
+
+Thanks to all contributors: [BarbUk](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3ABarbUk), [alanlitster](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Aalanlitster), [mcktr](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Amcktr), [KAMI911](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3AKAMI911), [peteeckel](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Apeteeckel), [breml](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Abreml), [episodeiv](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Aepisodeiv), [Crited](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3ACrited), [robert-scheck](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Arobert-scheck), [west0rmann](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Awest0rmann), [Napsty](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3ANapsty), [Elias481](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3AElias481), [uubk](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Auubk), [miso231](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Amiso231), [neubi4](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Aneubi4), [atj](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Aatj), [mvanduren-itisit](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Amvanduren-itisit), [jschanz](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Ajschanz), [MaBauMeBad](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3AMaBauMeBad), [markleary](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Amarkleary), [leeclemens](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Aleeclemens), [m4k5ym](https://github.com/Icinga/icinga2/pulls?q=is%3Apr+author%3Am4k5ym)
+
+### Enhancements
+
+* Core
+ * Rewrite Network Stack (cluster, REST API) based on Boost Asio, Beast, Coroutines
+ * Technical concept: #7041
+ * Requires package updates: Boost >1.66 (either from packages.icinga.com, EPEL or backports). SLES11 & Ubuntu 14 are EOL.
+ * Require TLS 1.2 and harden default cipher list
+ * Improved Reload Handling (umbrella process, now 3 processes at runtime)
+ * Support running Icinga 2 in (Docker) containers natively in foreground
+ * Quality: Use Modern JSON for C++ library instead of YAJL (dead project)
+ * Quality: Improve handling of invalid UTF8 strings
+* API
+ * Fix crashes and problems with permission filters from recent Namespace introduction #6785 (thanks Elias Ohm) #6874 (backported to 2.10.5)
+ * Locks and stalled waits are fixed with the core rewrite in #7071
+ * schedule-downtime action supports `all_services` for host downtimes
+ * Improve storage handling for runtime created objects in the `_api` package
+* Cluster
+ * HA aware features & improvements for failover handling #2941 #7062
+ * Improve cluster config sync with staging #6716
+* Checks & Notifications
+ * Ensure that notifications during a restart are sent
+ * Immediately notify about a problem after leaving a downtime and still NOT-OK
+ * Improve reload handling and wait for features/metrics
+ * Store notification command results and sync them in HA enabled zones #6722
+* DSL/Configuration
+ * Add getenv() function
+ * Fix TimePeriod range support over midnight
+ * `concurrent_checks` in the Checker feature has no effect, use the global MaxConcurrentChecks constant instead
+* CLI
+ * Permissions: node wizard/setup, feature, api setup now run in the Icinga user context, not root
+ * `ca list` shows pending CSRs by default, `ca remove/restore` allow to delete signing requests
+* ITL
+ * Add new commands and missing attributes - thanks to all contributors!
+* Windows
+ * Update bundled NSClient++ to 0.5.2.39
+ * Update agent installer and OpenSSL
+* Documentation
+ * Service Monitoring: How to create plugins by example, check commands and a modern version of the supported plugin API with best practices.
+ * Features: Better structure on metrics, and supported features.
+ * Basics: Rename `Custom Attributes` to `Custom Variables`.
+ * Basics: Refine explanation of command arguments.
+ * Distributed: Reword `Icinga client` into `Icinga agent` and add new images for scenarios and modes.
+ * Security: Add TLS v1.2+ requirement, hardened cipher lists
+ * Technical Concepts: TLS Network IO, Cluster Feature HA, Cluster Config Sync, Core Reload Handling.
+ * Development: Rewritten for better debugging and development experience for contributors including a style guide. Add nightly build setup instructions.
+ * Packaging: INSTALL.md was integrated into the Development chapter available at https://icinga.com/docs too.
+
+
+
+
+## 2.10.5 (2019-05-23)
+
+[Issues and PRs](https://github.com/Icinga/icinga2/milestone/81?closed=1)
+
+### Bugfixes
+
+* Core
+ * Fix crashes with logrotate signals #6737 (thanks Elias Ohm)
+* API
+ * Fix crashes and problems with permission filters from recent Namespace introduction #6785 (thanks Elias Ohm) #6874 (backported from 2.11)
+ * Reduce log spam with locked connections (real fix is the network stack rewrite in 2.11) #6877
+* Cluster
+ * Fix problems with replay log rotation and storage #6932 (thanks Peter Eckel)
+* IDO DB
+ * Fix that reload shutdown deactivates hosts and hostgroups (introduced in 2.9) #7157
+* Documentation
+ * Improve the [REST API](https://icinga.com/docs/icinga2/latest/doc/12-icinga2-api/) chapter: Unix timestamp handling, filters, unify POST requests with filters in the body
+ * Better layout for the [features](https://icinga.com/docs/icinga2/latest/doc/14-features/) chapter, specifically metrics and events
+ * Split [object types](https://icinga.com/docs/icinga2/latest/doc/09-object-types/) into monitoring, runtime, features
+ * Add technical concepts for [cluster messages](https://icinga.com/docs/icinga2/latest/doc/19-technical-concepts/#json-rpc-message-api)
+
+
+## 2.10.4 (2019-03-19)
+
+### Notes
+
+* Fix TLS connections in Influxdb/Elasticsearch features leaking file descriptors (#6989 #7018 ref/IP/12219)
+* Fixes for delayed and one-time notifications (#5561 #6757)
+* Improve performance for downtimes/comments added in HA clusters (#6885 ref/IP/9235)
+* check_perfmon supports non-localized performance counter names (#5546 #6418)
+
+### Enhancement
+
+* [#6732](https://github.com/icinga/icinga2/issues/6732) (Windows, PR): Update Windows Agent with new design
+* [#6729](https://github.com/icinga/icinga2/issues/6729) (Windows): Polish the Windows Agent design
+* [#6418](https://github.com/icinga/icinga2/issues/6418) (Windows): check\_perfmon.exe: Add fallback support for localized performance counters
+
+### Bug
+
+* [#7020](https://github.com/icinga/icinga2/issues/7020) (Elasticsearch, PR): ElasticsearchWriter: don't leak sockets
+* [#7018](https://github.com/icinga/icinga2/issues/7018) (Elasticsearch): ElasticsearchWriter not closing SSL connections on Icinga2 2.10.3.1
+* [#6991](https://github.com/icinga/icinga2/issues/6991) (CLI, PR): PkiUtility::NewCa\(\): just warn if the CA files already exist
+* [#6990](https://github.com/icinga/icinga2/issues/6990) (InfluxDB, PR): InfluxdbWriter: don't leak sockets
+* [#6989](https://github.com/icinga/icinga2/issues/6989) (InfluxDB): InfluxdbWriter not closing connections Icinga2 2.10.3 CentOS 7
+* [#6976](https://github.com/icinga/icinga2/issues/6976) (Cluster, PR): Don't require OS headers to provide SO\_REUSEPORT
+* [#6896](https://github.com/icinga/icinga2/issues/6896) (Notifications, PR): Notification\#BeginExecuteNotification\(\): SetNextNotification\(\) correctly
+* [#6885](https://github.com/icinga/icinga2/issues/6885) (API, Configuration, PR): Don't run UpdateObjectAuthority for Comments and Downtimes
+* [#6800](https://github.com/icinga/icinga2/issues/6800) (Plugins, Windows, PR): Fix check\_perfmon to support non-localized names
+* [#6757](https://github.com/icinga/icinga2/issues/6757) (Notifications, PR): Fix that no\_more\_notifications gets reset when Recovery notifications are filtered away
+* [#5561](https://github.com/icinga/icinga2/issues/5561) (Notifications): Set the notification mode times.begin is not 0, the first notification has a delay
+* [#5546](https://github.com/icinga/icinga2/issues/5546) (Plugins, Windows): check\_perfmon.exe doesn't support cyrillic names of perf counters
+
+### Documentation
+
+* [#7033](https://github.com/icinga/icinga2/issues/7033) (Documentation, PR): Docs: Update supported package repos in Getting Started chapter
+* [#7028](https://github.com/icinga/icinga2/issues/7028) (Documentation, PR): Fix heading level in development chapter
+* [#7001](https://github.com/icinga/icinga2/issues/7001) (Documentation, PR): Assignment operators doc: tell what the { } are for
+* [#6995](https://github.com/icinga/icinga2/issues/6995) (Documentation, PR): Typo and link fix
+* [#6979](https://github.com/icinga/icinga2/issues/6979) (Documentation, PR): Doc: write systemd lower-case
+* [#6975](https://github.com/icinga/icinga2/issues/6975) (Documentation, PR): Fix nested hostgroup example
+* [#6949](https://github.com/icinga/icinga2/issues/6949) (Documentation, PR): Doc fix: update check\_rbl parameter
+* [#6708](https://github.com/icinga/icinga2/issues/6708) (Documentation, PR): Docs: Alpine needs 'edge/main' repository too
+* [#5430](https://github.com/icinga/icinga2/issues/5430) (Documentation): Documentation about dictionaries and assignements
+
+### Support
+
+* [#7032](https://github.com/icinga/icinga2/issues/7032) (code-quality, PR): Backport Defer class for 2.10
+* [#7030](https://github.com/icinga/icinga2/issues/7030) (Packages, PR): SELinux: add unreserved\_port\_type attribute to icinga2\_port\_t
+* [#7029](https://github.com/icinga/icinga2/issues/7029) (Packages): Add unreserved\_port\_type attribute to icinga2\_port\_t
+* [#7002](https://github.com/icinga/icinga2/issues/7002) (Plugins, Windows, PR): check\_network -h: drop non-existent feature
+* [#6987](https://github.com/icinga/icinga2/issues/6987) (Tests): base-base\_utility/comparepasswords\_issafe test fails on i386
+* [#6977](https://github.com/icinga/icinga2/issues/6977) (Tests, PR): Ignore failure of unit test base\_utility/comparepasswords\_issafe
+
+## 2.10.3 (2019-02-26)
+
+### Notes
+
+Bugfixes:
+
+- Stalled TLS connections on reload/Director deployments (#6816 #6898 ref/NC/588119)
+- 'Connection: close' header leading to unstable instance, affects Ruby clients (#6799)
+- Server time in the future breaks check result processing (#6797 ref/NC/595861)
+- ScheduledDowntimes: Generate downtime objects only on one HA endpoint (#2844 ref/IC/9673 ref/NC/590167 ref/NC/591721)
+- Improve activation & syncing for downtime objects generated from ScheduledDowntimes (#6826 ref/IC/9673 ref/NC/585559)
+- Generate a runtime downtime object from already running ScheduledDowntime objects (#6704)
+- DB IDO: Don't enqueue queries when the feature is paused in HA zones (#5876)
+- Crashes with localtime_r errors (#6887)
+
+Documentation updates:
+
+- Ephemeral port range blocking on Windows agents (ref/NC/597307)
+- Technical concepts for the check scheduler (#6775)
+- DB IDO cleanup (#6791)
+- Unified development docs (#6819)
+
+### Bug
+
+* [#6971](https://github.com/icinga/icinga2/issues/6971) (Notifications, PR): Activate downtimes before any checkable object
+* [#6968](https://github.com/icinga/icinga2/issues/6968) (API, PR): Secure ApiUser::GetByAuthHeader\(\) against timing attacks
+* [#6940](https://github.com/icinga/icinga2/issues/6940) (Plugins, Windows, PR): Fix check\_swap percentage calculation
+* [#6925](https://github.com/icinga/icinga2/issues/6925) (Plugins, Windows, PR): Fix check\_swap formatting
+* [#6924](https://github.com/icinga/icinga2/issues/6924) (PR): Fix double to long conversions
+* [#6922](https://github.com/icinga/icinga2/issues/6922) (API, DB IDO): IDO MySQL fails on start if check\_interval is a float \(Icinga 2.9.2\)
+* [#6920](https://github.com/icinga/icinga2/issues/6920) (PR): Downtime::AddDowntime\(\): place Downtimes in the same zone as the origin ScheduledDowntimes
+* [#6917](https://github.com/icinga/icinga2/issues/6917) (Cluster, Log, PR): Cluster: Delete object message should log that
+* [#6916](https://github.com/icinga/icinga2/issues/6916) (PR): Don't allow retry\_interval \<= 0
+* [#6914](https://github.com/icinga/icinga2/issues/6914) (Cluster, PR): ClusterEvents::AcknowledgementSet event should forward 'persistent' attribute
+* [#6913](https://github.com/icinga/icinga2/issues/6913) (Plugins, Windows): check\_swap return value wrong when no swap file configured
+* [#6901](https://github.com/icinga/icinga2/issues/6901) (API, PR): TcpSocket\#Bind\(\): also set SO\_REUSEPORT
+* [#6899](https://github.com/icinga/icinga2/issues/6899) (PR): Log: Ensure not to pass negative values to localtime\(\)
+* [#6898](https://github.com/icinga/icinga2/issues/6898) (API): API action restart-process fails on FreeBSD
+* [#6894](https://github.com/icinga/icinga2/issues/6894) (Check Execution, PR): Fix checkresults from the future breaking checks
+* [#6887](https://github.com/icinga/icinga2/issues/6887) (Check Execution, Windows): Icinga2 Windows Service does not start critical/checker: Exception occurred while checking 'hostname.tld'
+* [#6883](https://github.com/icinga/icinga2/issues/6883) (Check Execution, PR): Allow Checkable\#retry\_interval to be 0
+* [#6871](https://github.com/icinga/icinga2/issues/6871): Icinga2 crashes after localtime\_r call
+* [#6857](https://github.com/icinga/icinga2/issues/6857) (Plugins, Windows, PR): Url\#m\_Query: preserve order
+* [#6826](https://github.com/icinga/icinga2/issues/6826) (Configuration, PR): Downtime\#HasValidConfigOwner\(\): wait for ScheduledDowntimes
+* [#6821](https://github.com/icinga/icinga2/issues/6821) (Cluster, Configuration, PR): Don't delete downtimes in satellite zones
+* [#6820](https://github.com/icinga/icinga2/issues/6820) (Cluster, PR): Only create downtimes from non-paused ScheduledDowntime objects in HA enabled cluster zones
+* [#6817](https://github.com/icinga/icinga2/issues/6817) (API, PR): HttpServerConnection\#DataAvailableHandler\(\): be aware of being called multiple times concurrently
+* [#6816](https://github.com/icinga/icinga2/issues/6816) (API, Cluster): Stalled TLS connections and lock waits in SocketEventEngine
+* [#6814](https://github.com/icinga/icinga2/issues/6814) (API, PR): Restore 'Connection: close' behaviour in HTTP responses
+* [#6811](https://github.com/icinga/icinga2/issues/6811) (Plugins, Windows, PR): Fix state conditions in check\_memory and check\_swap
+* [#6810](https://github.com/icinga/icinga2/issues/6810) (Plugins, Windows): Windows check\_memory never gets critical
+* [#6808](https://github.com/icinga/icinga2/issues/6808) (API, PR): Remove redundand check for object existence on creation via API
+* [#6807](https://github.com/icinga/icinga2/issues/6807) (API): \[2.10.2\] Director deploy crashes the Icinga service \[FreeBSD\]
+* [#6799](https://github.com/icinga/icinga2/issues/6799) (API): "Connection: close" header leads to unstable instance
+* [#6797](https://github.com/icinga/icinga2/issues/6797) (Check Execution): Servertime in the future breaks check results processing
+* [#6750](https://github.com/icinga/icinga2/issues/6750) (Configuration, PR): \#6749 Wrong operator on stride variable causing incorrect behaviour
+* [#6749](https://github.com/icinga/icinga2/issues/6749) (Configuration): Stride is misinterpreted in multi-date legacydatetime
+* [#6748](https://github.com/icinga/icinga2/issues/6748) (CLI, PR): Fix api setup to automatically create the conf.d directory
+* [#6718](https://github.com/icinga/icinga2/issues/6718) (API, Cluster, PR): Call SSL\_shutdown\(\) at least twice
+* [#6704](https://github.com/icinga/icinga2/issues/6704) (Notifications, PR): Put newly configured already running ScheduledDowntime immediately in effect
+* [#6542](https://github.com/icinga/icinga2/issues/6542) (Configuration, Log): /var/log/icinga2/icinga2.log is growing very fast on satellites
+* [#6536](https://github.com/icinga/icinga2/issues/6536) (Windows, help wanted): check\_nscp\_api: Query arguments are sorted on Url::Format\(\)
+* [#4790](https://github.com/icinga/icinga2/issues/4790) (Notifications): Newly configured already running ScheduledDowntime not put into effect
+* [#3937](https://github.com/icinga/icinga2/issues/3937) (API): Icinga2 API: PUT request fails at 0-byte file
+* [#2844](https://github.com/icinga/icinga2/issues/2844) (Cluster): Duplicated scheduled downtimes created in cluster HA zone
+
+### Documentation
+
+* [#6956](https://github.com/icinga/icinga2/issues/6956) (Documentation, PR): Escape pipe symbol in api documentation
+* [#6944](https://github.com/icinga/icinga2/issues/6944) (Documentation, PR): Troubleshooting: Add notes on ephemeral port range blocking on Windows agents
+* [#6928](https://github.com/icinga/icinga2/issues/6928) (Documentation, PR): Doc: Add .NET 3.5 to the windows build stack
+* [#6825](https://github.com/icinga/icinga2/issues/6825) (Documentation, PR): Document that retry\_interval is only used after an active check result
+* [#6819](https://github.com/icinga/icinga2/issues/6819) (Documentation, PR): Enhance and unify development docs for debug, develop, package
+* [#6791](https://github.com/icinga/icinga2/issues/6791) (Documentation, PR): Docs: Add a section for DB IDO Cleanup
+* [#6776](https://github.com/icinga/icinga2/issues/6776) (Documentation, PR): Doc fix: update apache section
+* [#6775](https://github.com/icinga/icinga2/issues/6775) (Documentation, PR): Add technical docs for the check scheduler \(general, initial check, offsets\)
+* [#6751](https://github.com/icinga/icinga2/issues/6751) (Documentation, PR): Doc fix: documentation link for apt
+* [#6743](https://github.com/icinga/icinga2/issues/6743) (Documentation, PR): Doc fix: error in example path.
+* [#5341](https://github.com/icinga/icinga2/issues/5341) (Documentation): Enhance development documentation
+
+### Support
+
+* [#6972](https://github.com/icinga/icinga2/issues/6972) (PR): Fix formatting in development docs
+* [#6958](https://github.com/icinga/icinga2/issues/6958) (code-quality, PR): Debug: Log calls to ConfigObject::Deactivate\(\)
+* [#6897](https://github.com/icinga/icinga2/issues/6897) (PR): Validate Zone::GetLocalZone\(\) before using
+* [#6872](https://github.com/icinga/icinga2/issues/6872) (Windows): 2.10 is unstable \(Windows Agent\)
+* [#6843](https://github.com/icinga/icinga2/issues/6843) (Tests, Windows, PR): Improve AppVeyor builds
+* [#6479](https://github.com/icinga/icinga2/issues/6479) (code-quality, PR): SocketEvents: inherit from Stream
+* [#6477](https://github.com/icinga/icinga2/issues/6477) (code-quality): SocketEvents: inherit from Object
+
+## 2.10.2 (2018-11-14)
+
+### Bug
+
+* [#6770](https://github.com/icinga/icinga2/issues/6770) (PR): Fix deadlock in GraphiteWriter
+* [#6769](https://github.com/icinga/icinga2/issues/6769) (Cluster): Hanging TLS connections
+* [#6759](https://github.com/icinga/icinga2/issues/6759) (Log, PR): Fix possible double free in StreamLogger::BindStream\(\)
+* [#6753](https://github.com/icinga/icinga2/issues/6753): Icinga2.service state is reloading in systemd after safe-reload until systemd time-out
+* [#6740](https://github.com/icinga/icinga2/issues/6740) (DB IDO, PR): DB IDO: Don't enqueue queries when the feature is paused \(HA\)
+* [#6738](https://github.com/icinga/icinga2/issues/6738) (API, Cluster, PR): Ensure that API/JSON-RPC messages in the same session are processed and not stalled
+* [#6736](https://github.com/icinga/icinga2/issues/6736) (Crash): Stability issues with Icinga 2.10.x
+* [#6717](https://github.com/icinga/icinga2/issues/6717) (API, PR): Improve error handling for invalid child\_options for API downtime actions
+* [#6712](https://github.com/icinga/icinga2/issues/6712) (API): Downtime name not returned when error occurs
+* [#6711](https://github.com/icinga/icinga2/issues/6711) (API, Cluster): Slow API \(TLS-Handshake\)
+* [#6709](https://github.com/icinga/icinga2/issues/6709) (PR): Fix the Icinga2 version check for versions with more than 5 characters
+* [#6707](https://github.com/icinga/icinga2/issues/6707) (Compat, PR): Fix regression for wrong objects.cache path overwriting icinga2.debug file
+* [#6705](https://github.com/icinga/icinga2/issues/6705) (CLI, Compat, Configuration): Crash "icinga2 object list" command with 2.10.1-1 on CentOS 7
+* [#6703](https://github.com/icinga/icinga2/issues/6703): Check command 'icinga' breaks when vars.icinga\_min\_version is defined \(2.10.x\)
+* [#6635](https://github.com/icinga/icinga2/issues/6635) (API): API TLS session connection closed after 2 requests
+* [#5876](https://github.com/icinga/icinga2/issues/5876) (DB IDO): IDO Work queue on the inactive node growing when switching connection between redundant master servers
+
+### Documentation
+
+* [#6714](https://github.com/icinga/icinga2/issues/6714) (Documentation, PR): Docs: Add package related changes to the upgrading docs
+
+### Support
+
+* [#6773](https://github.com/icinga/icinga2/issues/6773) (Installation, Packages, PR): Initialize ICINGA2\_ERROR\_LOG inside the systemd environment
+* [#6771](https://github.com/icinga/icinga2/issues/6771) (Tests, PR): Implement unit tests for Dictionary initializers
+* [#6760](https://github.com/icinga/icinga2/issues/6760) (Packages, Tests, PR): armhf: Apply workaround for timer tests with std::bind callbacks
+* [#6710](https://github.com/icinga/icinga2/issues/6710) (Packages): Crash when upgrading from 2.10.0 to 2.10.1 \(SELinux related\)
+
+## 2.10.1 (2018-10-18)
+
+### Bug
+
+* [#6696](https://github.com/icinga/icinga2/issues/6696) (PR): Remove default environment, regression from e678fa1aa5
+* [#6694](https://github.com/icinga/icinga2/issues/6694): v2.10.0 sets a default environment "production" in SNI
+* [#6691](https://github.com/icinga/icinga2/issues/6691) (PR): Add missing shutdown/program state dumps for SIGUSR2 reload handler
+* [#6689](https://github.com/icinga/icinga2/issues/6689): State file not updated on reload
+* [#6685](https://github.com/icinga/icinga2/issues/6685) (API, PR): Fix regression with API permission filters and namespaces in v2.10
+* [#6682](https://github.com/icinga/icinga2/issues/6682) (API): API process-check-result fails in 2.10.0
+* [#6679](https://github.com/icinga/icinga2/issues/6679) (Windows, PR): Initialize Configuration::InitRunDir for Windows and writing the PID file
+* [#6624](https://github.com/icinga/icinga2/issues/6624) (Check Execution): Master Reload Causes Passive Check State Change
+* [#6592](https://github.com/icinga/icinga2/issues/6592): Reloads seem to reset the check atempt count. Also notifications go missing shortly after a reload.
+
+### Documentation
+
+* [#6701](https://github.com/icinga/icinga2/issues/6701) (Documentation, PR): Add GitHub release tag to README
+* [#6700](https://github.com/icinga/icinga2/issues/6700) (Documentation, PR): Enhance the addon chapter in the docs
+* [#6699](https://github.com/icinga/icinga2/issues/6699) (Documentation, PR): Update to https://icinga.com/
+* [#6692](https://github.com/icinga/icinga2/issues/6692) (Documentation, PR): Update release docs for Chocolatey
+* [#6690](https://github.com/icinga/icinga2/issues/6690) (Documentation, PR): Extend 09-object-types.md with argument array
+* [#6674](https://github.com/icinga/icinga2/issues/6674) (Documentation, PR): Add a note to the docs on \>2 endpoints in a zone
+* [#6673](https://github.com/icinga/icinga2/issues/6673) (Documentation, PR): Update RELEASE docs
+* [#6672](https://github.com/icinga/icinga2/issues/6672) (Documentation, PR): Extend upgrade docs
+* [#6671](https://github.com/icinga/icinga2/issues/6671) (Documentation): Zone requirements changed in 2.10 - Undocumented Change
+
+### Support
+
+* [#6681](https://github.com/icinga/icinga2/issues/6681) (code-quality, PR): Fix spelling errors.
+* [#6677](https://github.com/icinga/icinga2/issues/6677) (Packages, Windows): icinga does not start after Update to 2.10
+
+## 2.10.0 (2018-10-11)
+
+### Notes
+
+* Support for namespaces, details in [this blogpost](https://icinga.com/2018/09/17/icinga-2-dsl-feature-namespaces-coming-in-v2-10/)
+* Only send acknowledgement notification to users notified about a problem before, thanks for sponsoring to the [Max-Planck-Institut for Marine Mikrobiologie](https://www.mpi-bremen.de)
+* More child options for scheduled downtimes
+* Performance improvements and fixes for the TLS connections inside cluster/REST API
+* Better logging for HTTP requests and less verbose object creation (e.g. downtimes via Icinga Web 2 & REST API)
+* New configuration path constants, e.g. ConfigDir
+* Fixed problem with dependencies rescheduling parent checks too fast
+* Fixed problem with logging in systemd and syslog
+* Improved vim syntax highlighting
+* [Technical concepts docs](https://icinga.com/docs/icinga2/latest/doc/19-technical-concepts/) update with config compiler and TLS network IO
+
+### Enhancement
+
+* [#6663](https://github.com/icinga/icinga2/issues/6663) (API, Log, PR): Silence config compiler logging for runtime created objects
+* [#6657](https://github.com/icinga/icinga2/issues/6657) (API, Log, PR): Enable the HTTP request body debug log entry for release builds
+* [#6655](https://github.com/icinga/icinga2/issues/6655) (API, Log, PR): Improve logging for disconnected HTTP clients
+* [#6651](https://github.com/icinga/icinga2/issues/6651) (Plugins, PR): Add 'used' feature to check\_swap
+* [#6633](https://github.com/icinga/icinga2/issues/6633) (API, Cluster, PR): Use a dynamic thread pool for API connections
+* [#6632](https://github.com/icinga/icinga2/issues/6632) (Cluster, PR): Increase the cluster reconnect frequency to 10s
+* [#6616](https://github.com/icinga/icinga2/issues/6616) (API, Cluster, PR): Add ApiListener\#tls\_handshake\_timeout option
+* [#6611](https://github.com/icinga/icinga2/issues/6611) (Notifications): Allow types = \[ Recovery \] to always send recovery notifications
+* [#6595](https://github.com/icinga/icinga2/issues/6595) (API, Cluster, PR): Allow to configure anonymous clients limit inside the ApiListener object
+* [#6532](https://github.com/icinga/icinga2/issues/6532) (Configuration, PR): Add child\_options to ScheduledDowntime
+* [#6531](https://github.com/icinga/icinga2/issues/6531) (API, PR): Expose Zone\#all\_parents via API
+* [#6527](https://github.com/icinga/icinga2/issues/6527) (Notifications, PR): Acknowledgment notifications should only be send if problem notification has been send
+* [#6521](https://github.com/icinga/icinga2/issues/6521) (Configuration, PR): Implement references
+* [#6512](https://github.com/icinga/icinga2/issues/6512) (Cluster, PR): Refactor environment for API connections
+* [#6511](https://github.com/icinga/icinga2/issues/6511) (Cluster, PR): ApiListener: Add support for dynamic port handling
+* [#6509](https://github.com/icinga/icinga2/issues/6509) (Configuration, PR): Implement support for namespaces
+* [#6508](https://github.com/icinga/icinga2/issues/6508) (Configuration, PR): Implement the Dictionary\#clear script function
+* [#6506](https://github.com/icinga/icinga2/issues/6506) (PR): Improve path handling in cmake and daemon
+* [#6460](https://github.com/icinga/icinga2/issues/6460) (Log, help wanted): Feature suggestion: Do not log warnings when env elements are undefined in CheckCommand objects
+* [#6455](https://github.com/icinga/icinga2/issues/6455) (Log, PR): Log something when the Filelogger has been started
+* [#6379](https://github.com/icinga/icinga2/issues/6379) (Configuration, PR): Throw config error when using global zones as parent
+* [#6356](https://github.com/icinga/icinga2/issues/6356) (Log, PR): Fix logging under systemd
+* [#6339](https://github.com/icinga/icinga2/issues/6339) (Log, help wanted): On systemd, icinga2 floods the system log, and this cannot simply be opted out of
+* [#6110](https://github.com/icinga/icinga2/issues/6110) (Configuration, PR): Implement support for optionally specifying the 'var' keyword in 'for' loops
+* [#6047](https://github.com/icinga/icinga2/issues/6047) (Notifications): Acknowledgment notifications should only be sent if the user already received a problem notification
+* [#4282](https://github.com/icinga/icinga2/issues/4282) (API, Log): Icinga should log HTTP bodies for API requests
+
+### Bug
+
+* [#6658](https://github.com/icinga/icinga2/issues/6658) (API, PR): Ensure that HTTP/1.0 or 'Connection: close' headers are properly disconnecting the client
+* [#6652](https://github.com/icinga/icinga2/issues/6652) (Plugins, PR): Fix check\_memory thresholds in 'used' mode
+* [#6647](https://github.com/icinga/icinga2/issues/6647) (CLI, PR): node setup: always respect --accept-config and --accept-commands
+* [#6643](https://github.com/icinga/icinga2/issues/6643) (Check Execution, Notifications, PR): Fix that check\_timeout was used for Event/Notification commands too
+* [#6639](https://github.com/icinga/icinga2/issues/6639) (Windows, PR): Ensure to \_unlink before renaming replay log on Windows
+* [#6622](https://github.com/icinga/icinga2/issues/6622) (DB IDO, PR): Ensure to use UTC timestamps for IDO PgSQL cleanup queries
+* [#6603](https://github.com/icinga/icinga2/issues/6603) (Check Execution, Cluster): CheckCommand 'icinga' seems to ignore retry interval via command\_endpoint
+* [#6575](https://github.com/icinga/icinga2/issues/6575): LTO builds fail on Linux
+* [#6566](https://github.com/icinga/icinga2/issues/6566) (Cluster): Master disconnects during signing process
+* [#6546](https://github.com/icinga/icinga2/issues/6546) (API, CLI, PR): Overridden path constants not passed to config validation in /v1/config/stages API call
+* [#6530](https://github.com/icinga/icinga2/issues/6530) (DB IDO, PR): IDO/MySQL: avoid empty queries
+* [#6519](https://github.com/icinga/icinga2/issues/6519) (CLI, PR): Reset terminal on erroneous console exit
+* [#6517](https://github.com/icinga/icinga2/issues/6517) (Cluster): Not all Endpoints can't reconnect due to "Client TLS handshake failed" error after "reload or restart"
+* [#6514](https://github.com/icinga/icinga2/issues/6514) (API): API using "Connection: close" header results in infinite threads
+* [#6507](https://github.com/icinga/icinga2/issues/6507) (Cluster): Variable name conflict in constants.conf / Problem with TLS verification, CN and Environment variable
+* [#6503](https://github.com/icinga/icinga2/issues/6503) (Log, PR): Reduce the log level for missing env macros to debug
+* [#6485](https://github.com/icinga/icinga2/issues/6485) (Log): Icinga logs discarding messages still as warning and not as notice
+* [#6475](https://github.com/icinga/icinga2/issues/6475) (Compat, PR): lib-\>compat-\>statusdatawriter: fix notifications\_enabled
+* [#6430](https://github.com/icinga/icinga2/issues/6430) (Log, PR): Fix negative 'empty in' value in WorkQueue log message
+* [#6427](https://github.com/icinga/icinga2/issues/6427) (Configuration, Crash, PR): Improve error message for serializing objects with recursive references
+* [#6409](https://github.com/icinga/icinga2/issues/6409) (Configuration, Crash): Assigning vars.x = vars causes Icinga 2 segfaults
+* [#6408](https://github.com/icinga/icinga2/issues/6408) (PR): ObjectLock\#Unlock\(\): don't reset m\_Object-\>m\_LockOwner too early
+* [#6386](https://github.com/icinga/icinga2/issues/6386) (Configuration, PR): Fix that TimePeriod segments are not cleared on restart
+* [#6382](https://github.com/icinga/icinga2/issues/6382) (CLI, help wanted): icinga2 console breaks the terminal on errors
+* [#6313](https://github.com/icinga/icinga2/issues/6313) (Plugins, Windows, PR): Fix wrong calculation of check\_swap windows plugin
+* [#6304](https://github.com/icinga/icinga2/issues/6304) (Configuration, Notifications): Timeout defined in NotificationCommand is ignored and uses check\_timeout
+* [#5815](https://github.com/icinga/icinga2/issues/5815) (Plugins, Windows): swap-windows check delivers wrong result
+* [#5375](https://github.com/icinga/icinga2/issues/5375) (Check Execution, PR): Parents who are non-active should not be rescheduled
+* [#5052](https://github.com/icinga/icinga2/issues/5052) (Cluster, Windows): Replay log not working with Windows client
+* [#5022](https://github.com/icinga/icinga2/issues/5022) (Check Execution): Dependencies may reschedule passive checks, triggering freshness checks
+
+### ITL
+
+* [#6646](https://github.com/icinga/icinga2/issues/6646) (ITL, PR): Update ITL and Docs for memory-windows - show used
+* [#6640](https://github.com/icinga/icinga2/issues/6640) (ITL): Update ITL and Docs for memory-windows - show used
+* [#6563](https://github.com/icinga/icinga2/issues/6563) (ITL, PR): \[Feature\] Cloudera service health CheckCommand
+* [#6561](https://github.com/icinga/icinga2/issues/6561) (ITL, PR): \[Feature\] Ceph health CheckCommand
+* [#6504](https://github.com/icinga/icinga2/issues/6504) (ITL, PR): squashfs ignored
+* [#6491](https://github.com/icinga/icinga2/issues/6491) (ITL, PR): Feature/itl vmware health
+* [#6481](https://github.com/icinga/icinga2/issues/6481) (ITL): command-plugins.conf check\_disk exclude squashfs
+
+### Documentation
+
+* [#6670](https://github.com/icinga/icinga2/issues/6670) (Documentation, PR): Add technical concepts for the config compiler and daemon CLI command
+* [#6665](https://github.com/icinga/icinga2/issues/6665) (Documentation, PR): Make the two modes of check\_http more obvious.
+* [#6615](https://github.com/icinga/icinga2/issues/6615) (Documentation, PR): Update distributed monitoring docs for 2.10
+* [#6610](https://github.com/icinga/icinga2/issues/6610) (Documentation, PR): Add "TLS Network IO" into technical concepts docs
+* [#6607](https://github.com/icinga/icinga2/issues/6607) (Documentation, PR): Enhance development docs with GDB backtrace and thread list
+* [#6606](https://github.com/icinga/icinga2/issues/6606) (Documentation, PR): Enhance contributing docs
+* [#6598](https://github.com/icinga/icinga2/issues/6598) (Documentation, PR): doc/09-object-types: states filter ignored for Acknowledgements
+* [#6597](https://github.com/icinga/icinga2/issues/6597) (Documentation, PR): Add Fedora to development docs for debuginfo packages
+* [#6593](https://github.com/icinga/icinga2/issues/6593) (Documentation, help wanted): Include CA Proxy in 3rd scenario in Distributed Monitoring docs
+* [#6573](https://github.com/icinga/icinga2/issues/6573) (Documentation, PR): Fix operator precedence table
+* [#6528](https://github.com/icinga/icinga2/issues/6528) (Documentation, PR): Document default of User\#enable\_notifications
+* [#6502](https://github.com/icinga/icinga2/issues/6502) (Documentation, PR): Update 17-language-reference.md
+* [#6501](https://github.com/icinga/icinga2/issues/6501) (Documentation, PR): Update 03-monitoring-basics.md
+* [#6488](https://github.com/icinga/icinga2/issues/6488) (Documentation, ITL, PR): Fix typo with the CheckCommand cert
+
+### Support
+
+* [#6669](https://github.com/icinga/icinga2/issues/6669) (PR): Don't throw an error when namespace indexers don't find a valid key
+* [#6668](https://github.com/icinga/icinga2/issues/6668) (Installation, PR): Enhance vim syntax highlighting for 2.10
+* [#6661](https://github.com/icinga/icinga2/issues/6661) (API, Log, code-quality, PR): Cache the peer address in the HTTP server
+* [#6642](https://github.com/icinga/icinga2/issues/6642) (PR): Allow to override MaxConcurrentChecks constant
+* [#6621](https://github.com/icinga/icinga2/issues/6621) (code-quality, PR): Remove unused timestamp function in DB IDO
+* [#6618](https://github.com/icinga/icinga2/issues/6618) (PR): Silence compiler warning for nice\(\)
+* [#6591](https://github.com/icinga/icinga2/issues/6591) (PR): Fix static initializer priority for namespaces in LTO builds
+* [#6588](https://github.com/icinga/icinga2/issues/6588) (PR): Fix using full path in prepare-dirs/safe-reload scripts
+* [#6586](https://github.com/icinga/icinga2/issues/6586) (PR): Fix non-unity builds on CentOS 7 with std::shared\_ptr
+* [#6583](https://github.com/icinga/icinga2/issues/6583) (Documentation, Installation, PR): Update PostgreSQL library path variable in INSTALL.md
+* [#6574](https://github.com/icinga/icinga2/issues/6574) (PR): Move new downtime constants into the Icinga namespace
+* [#6570](https://github.com/icinga/icinga2/issues/6570) (Cluster, PR): Increase limit for simultaneously connected anonymous TLS clients
+* [#6567](https://github.com/icinga/icinga2/issues/6567) (PR): ApiListener: Dump the state file port detail as number
+* [#6556](https://github.com/icinga/icinga2/issues/6556) (Installation, Windows, PR): windows: Allow suppression of extra actions in the MSI package
+* [#6544](https://github.com/icinga/icinga2/issues/6544) (code-quality, PR): Remove \#include for deprecated header file
+* [#6539](https://github.com/icinga/icinga2/issues/6539) (PR): Build fix for CentOS 7 and non-unity builds
+* [#6526](https://github.com/icinga/icinga2/issues/6526) (code-quality, PR): icinga::PackObject\(\): shorten conversion to string
+* [#6510](https://github.com/icinga/icinga2/issues/6510) (Tests, Windows, PR): Update windows build scripts
+* [#6494](https://github.com/icinga/icinga2/issues/6494) (Tests, PR): Test PackObject
+* [#6489](https://github.com/icinga/icinga2/issues/6489) (code-quality, PR): Implement object packer for consistent hashing
+* [#6484](https://github.com/icinga/icinga2/issues/6484) (Packages): Packages from https://packages.icinga.com are not Systemd Type=notify enabled?
+* [#6469](https://github.com/icinga/icinga2/issues/6469) (Installation, Windows, PR): Fix Windows Agent resize behavior
+* [#6458](https://github.com/icinga/icinga2/issues/6458) (code-quality, PR): Fix debug build log entry for ConfigItem activation priority
+* [#6456](https://github.com/icinga/icinga2/issues/6456) (code-quality, PR): Keep notes for immediately log flushing
+* [#6440](https://github.com/icinga/icinga2/issues/6440) (code-quality, PR): Fix typo
+* [#6410](https://github.com/icinga/icinga2/issues/6410) (code-quality, PR): Remove unused code
+* [#4959](https://github.com/icinga/icinga2/issues/4959) (Installation, Windows): Windows Agent Wizard Window resizes with screen, hiding buttons
+
+## 2.9.2 (2018-09-26)
+
+### Enhancement
+
+* [#6602](https://github.com/icinga/icinga2/issues/6602) (API, Cluster, PR): Improve TLS handshake exception logging
+* [#6568](https://github.com/icinga/icinga2/issues/6568) (Configuration, PR): Ensure that config object types are committed in dependent load order
+* [#6497](https://github.com/icinga/icinga2/issues/6497) (Configuration, PR): Improve error logging for match/regex/cidr\_match functions and unsupported dictionary usage
+
+### Bug
+
+* [#6596](https://github.com/icinga/icinga2/issues/6596) (Crash, PR): Fix crash on API queries with Fedora 28 hardening and GCC 8
+* [#6581](https://github.com/icinga/icinga2/issues/6581) (Configuration, PR): Shuffle items before config validation
+* [#6569](https://github.com/icinga/icinga2/issues/6569) (DB IDO): Custom Vars not updated after upgrade
+* [#6533](https://github.com/icinga/icinga2/issues/6533) (Crash): Icinga2 crashes after using some api-commands on Fedora 28
+* [#6505](https://github.com/icinga/icinga2/issues/6505) (Cluster, PR): Fix clusterzonecheck if not connected
+* [#6498](https://github.com/icinga/icinga2/issues/6498) (Configuration, PR): Fix regression with MatchAny false conditions on match/regex/cidr\_match
+* [#6496](https://github.com/icinga/icinga2/issues/6496) (Configuration): error with match and type matchany
+
+### Documentation
+
+* [#6590](https://github.com/icinga/icinga2/issues/6590) (DB IDO, Documentation, PR): Update workaround for custom vars
+* [#6572](https://github.com/icinga/icinga2/issues/6572) (Documentation, PR): Add note about workaround for broken custom vars
+
+### Support
+
+* [#6540](https://github.com/icinga/icinga2/issues/6540) (Configuration): Evaluate a fixed config compiler commit order
+* [#6486](https://github.com/icinga/icinga2/issues/6486) (Configuration): Configuration validation w/ ScheduledDowntimes performance decreased in 2.9
+* [#6442](https://github.com/icinga/icinga2/issues/6442) (Configuration): Error while evaluating "assign where match" expression: std::bad\_cast
## 2.9.1 (2018-07-24)
projects / icinga2 / blobdiff