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* Fixed external scripts not showing in command list
* Fixed #403 reduced cpuload on some servers by only collecting handle information every 10x instead of every iteration
* Reduced CPU load of checking handles for systems with large number of processes
* Added syntax=none to remove default values from various top/empty/* syntax's

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 * Fixed name of Windows 2016 server
 * check_os_version: Added %(suite) to show wich suite is installed.

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# Major changes sine 0.5.0

The main goals of the 0.5.1 was to add event subsystem and make fix bugs/issues. In addition to this the installer has been rewritten as well as the documentation.

-   Event subsystem
-   New documentation
-   New installer
-   Numerous bugfixes and minor enhancements

## Event subsystem

This is perhaps more interesting for developers of scripts for NSClient++ but it is a way to send notifications
without having to adhere to the Nagios check result format. It was designed to make event-log to syslog forwarding simpler
as well as detecting installed software and similar non check things.
As of yet this can only be used inside internal scripts but the idea is to use these building-blocks to add many new features
such as automatic monitoring configuration in the future.

## New documentation

The old restructured documentation has been replaced with a new one based on mark down.
This is actually more important then it seems as markdown renders on github this means you can now easily edit the documentation
directly in your browser if you see any issues. The documentation was also brought back into the regular git repository as well
making this even simpler.

## New installer

While the installer is not all that new enough of the logic has been rewritten and tested to make sure silent installers are very very
easy to make. Overriding configuration keys on command line is now much more predictable and works without strange voodoo.

## Bugfixes enhancements

As always there are numerous bug fixes and enhancements and a full list of changes can be found in the [documentation](https://docs.nsclient.org/about/whatsnew/0.5.1/)

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* Added option to disable background checks in CheckSystem ((this is not useful as it breaks things, so only use if you have issues)

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 * Fixed #455 documentation about msiexec was wrong
 * Fixed test mode crash
 * Fixed check_service missing descriptions (#456)
 * Fixed potential logger crash
 * Added option to configure maintenance threads as well as changed metrics interval to every 10 seconds

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* Fixed commandline invocations

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 * Fixed wrong unit test command for lua scripts
 * Removed arguments for unit test as they are not used.
 * Disabled docs if python is missing (or less then 2.6)
 * Switched to regular find python cmake module
 * Added whats new for 0.5.1
 * Fixed error handling when checks crash
 * Added unit test for scheduler
 * python unittest helper lib: Added assert_gt and asser_lt to check values
 * Added --show-all to nscp unit to show all results of the testcase (not just failed ones)
 * Fixed rare crash when logger shuts down
 * Fixed rare crash when scheduler shuts down
 * Fixed scheduler interval being off
 * Added randomness to the scheduler to dictate how much randomness you want (default is 0)
 * core: Fixed loading module with alias via API
 * Fixed exclude parsing when converting CheckServiceState commands (much faster now)

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 * Added information about paths constants to the documentation
 * Changed default module and script path to be relative of exe instead of shared (no impact currently since shared path is exe)
 * Fixed unit testcase issues and added them to automatic build pipeline
 * Fixes some typos inchangelog

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 * Fixed crash when paths was not available
 * NRPE: Improved NRPE server truncation of performance data
 * check_process: Fixed #423 %(filename) variable should contain path
 * Fixed unittest --language option not working
 * CheckLogFile: Fixed crash in on linux
 * Added workaround for boost 1.58 bug (Fixes #442 )
 * Added docker files for building on linux

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 * Eventlog: Added command line for adding real time filter:
   nscp eventlog add --alias foo --log application --target log
 * eventlog: Fixed rendering large (more then 4k) eventlog messages
 * Fixed #426 real time eventlog messages truncated at 512 characters
 * Fixed #428 installer properties not working properly
 * Fixed travis builds
 * Moved docs into the main repository to get out of all the annoying submodule issues
 * Applied #438: check_updates.vbs should return unknown if Windows Update service is disabled
 * Michael now owes Michael Friedrich a beer for his awesome work!
 * Added documentation for APIs
 * installer: Change id of fw exception (but did not affect the guid)
 * installer: Fixed installer command line switches, "op5 mode" and generated password
 * removed pid option on windows
 * installer: Added secondary installer
 * installer: Changed title and added flag to override allow owerwrite
 * Fix writing configuration key 'WEBServer'

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New installer and new "Secondary NSClient++" if you wish to install two NSClient++ on the same computer.

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* Fixed new op5 logo
* Fixed signing certificates in installer

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Fixed installer UI (and writing installer keys)

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* filters: Fixed #412 show-all overwrites top-syntax
* pdh: Fixed #415 negative value
* registry: Fixed #414 invalid data at end of strings in registry

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* WebServer: Possible fix for #411 memory leaks
* Fixed error handler in in filters so debug works better

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Fixed installer issue

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* check_nt CPU load using invalid time (second instead of minute) Fixes #251 and #403
* PythonScript: Fixed so install commands works (i.e. nscp py install --add sample.py)
* settings: Fixed internal API wrapper with multiple payloads
* Fix typos. comaseparated => comma separated
* filters: Fixed expression parsing (Possible fix for #396 )

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* Potential fix for issue with long filter strings.

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2016-03-19 Michael Medin
 * Fixed url in reporter
 * Fixed running external scripts as other users when running as local system

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- Potential fix for getting averages in check_network

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- eventlog: Fixed #348 eventlog insert not working...
- clients: Fixed #372 --source-host not working
- Linux: Some debian build issues
- Added sample debian package descriptors

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- Fixed invalid error in installer

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Updated documentation

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- Fixes tomake sure it builds properly on linux
- CheckHelpers: Added new mode minmax to xform_perf to add missing minimum and maximum performance data to % commands. (Fixes/Improves #334 and #363 )
- graphite: Added removal of more invalid graphite chars (% and () Fixes #358
- check_nscp_nrpe returns wrong status code (for unknown) fixes #359
- check_nrpe: added support for encoding to client
- Code cleanup: Organized includes
- Code cleanup: reorganized string helpers
- Code cleanup: Harmonized nscp_exception and nscapi_exception into nsclient_exception
- Code cleanup: Fixed accidentally replaced with wrong license before
- Code cleanup: removed dead code
- refactor-core: Moved registry and settings handler out of core
- Fixed accidental overwriting of section description in config
- Added support for default values in settings to generate better docs
- Fixed dependency order for installer
- Switched documentation to markdown, and improved it a lot
- Fixed issue with missing loaded plugins from cache
- Added mkdocs detection
- First prototype of debian packages
- check_drivesize: Added mediatype
- changed attributes on scripts
- Fixed a bunch of linux/boost compiler issues

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2016-11-29 Michael Medin
- installer: Fixed some regression issues with related to settings fix
- installer: dumped all keys in log for simpler debug
- Installer: Improved key handling and removed "have to override keys on msiexec" bug

2016-11-27 Michael Medin
- Fixed crash if module failed to load
- Core: Removed mutex from event processing
- CheckSystem: Real time thread nove logs on TRACE instead of DEBUG
- PythonScript: Added event support
- Added functions to API helpers to emit events
- settings: Added unzip: to attachments to unzip a file of attachments
- https: Fixed SNI in settings and NRDP
- CheckSystem: Delayed background threads
- Improved the https client (doesnt use a double bufffer)
- Fixed https settings
- Added miniz as a submodule for unzipping attached file from settings
- Fixed event record data collection

2016-11-15 Michael Medin
- CheckSystem: Fixed #341 Crash in check_pagefile when there are no pagefiles

2016-11-13 Michael Medin
- CheckSystem: refactored various real time filters into separate parts and added check_process
- PythonScript: Added support for events
- filters: Added event as target to send result of filters as events
- Core: Added events
- system: Fixed regression issue with registry messages
- filter: refactoring: Added ability to fetch att variables from a filter factory
- filter: added copy cons to filter_object
- filter: Added to string methods for filters to provide vbetter error handling
- filters: Refactored the return data to be simpler (and removed no longer used is_done flag)
- Filters: Refactored the "template flag" into the function

2016-11-06 Michael Medin
- Removed attachments (as they are never used)
- CheckSystem: refactored check_process to a separate module
- CHeckLogFile: Fixed crash when tracelogging realtime monitoring
- reset version

2016-10-30 Michael Medin
- Fixed op5 scripts folder

2016-10-23 Michael Medin
- NRDP: Added parsing of NRDP server response
- NRDP: Fixed #331 token missing from NRDP
- Settings: Fixed #227 migration only saves the root scope
- Added aliases to settings for future use
- Improved settings esception to give error from correct line
- Moved settings and registry query to separate files to make the core more modular
- Removed "boot settings keys" as they are not really used

2016-10-17 Michael Medin
- Some more (post) cr-lf fixes
- Removed unused files
- Updated and harmonized header comments
- Changed cr/lf on all files locally
- Normalize all the line endings
- Added gitattributes (crlf fix)
- updated some docs maybe?

2016-10-16 Michael Medin
- Fixed crash on reload
- Improved error handling a bit
- Changed logger from static to factory and cleaned up the log classes
- removed log to file from service apis for windows (as there is no guarantee the logger is configured)
- moved replace to ::s namespace

2016-09-14 Michael Medin
- NRDPClient: Fixed #286 (for real this time), NRDP not working over https
- http client: changed error to reflect whats wrong (not config error)
- http client: added error if not compiled with ssl

2016-09-08 Michael Medin
- Fixed copying of file in centos build
- check_eventlog: Fixed time/date rendering
- Fixed missing return

2016-09-05 Michael Medin
- filters: fixed issue when no filter is specified in realtime checks
- real time filters: Added more debug messages when no filters match (to better show why)
- filters: Improved error handler when filters fail