We want to upgrade the Splunk_TA_Windows to the most recent version, but realized that it's only supported on versions 6.6+, and lots of our clients use 6.5.4. Has anyone tried upgrading the app on the HFW/IDX, but keeping the "old" (4.8.3) on the forwarders? We do not control installing the forwarders on the servers, so upgrading it is going to take some time.
We recently upgraded Splunk_TA_windows on all enterprise servers and clients to 5.0.1 from 4.8.3 . We've bunch of clients which were running with 6.5.* and 6.6.* versions . So far we're not seeing any issues and also it is updating how source and sourcetypes are assigned to WinEventLog data.
For more details please look here:
http://docs.splunk.com/Documentation/WindowsAddOn/5.0.1/User/Upgrade#WinEventLog_extraction_changes
WinEventLog extraction changes
The Splunk Add-on for Windows v5.0.x updates how source and sourcetypes are assigned to WinEventLog data.
Sourcetype changes for WinEventLog data
All WinEventLogs are assigned to either the WinEventLog or the XmlWinEventLog sourcetype and distinguished by their source.
Version 4.8.4 and earlier source Version 4.8.4 and earlier sourcetype Version 5.0.x source Version 5.0.x sourcetype
WinEventLog:System WinEventLog:System WinEventLog:System WinEventLog
WinEventLog:Application WinEventLog:Application WinEventLog:Application WinEventLog
WinEventLog:Security WinEventLog:Security WinEventLog:Security WinEventLog
WinEventLog:System XmlWinEventLog:System XmlWinEventLog:System XmlWinEventLog
WinEventLog:Application XmlWinEventLog:Application XmlWinEventLog:Application XmlWinEventLog
WinEventLog:Security XmlWinEventLog:Security XmlWinEventLog:Security XmlWinEventLog
The sourcetypes WinEventLog:System, WinEventLog:Application, and WinEventLog:Security in the Splunk Add-on for Windows version 4.8.4 or earlier will remain the same for already indexed events. For newly indexed events from the Splunk Add-on for Windows version 5.0.x, the sourcetypes will be changed as shown in the table above.
Backwards compatibility for indexed events
Due to this change, events that have already been indexed will not be extracted properly so add the appropriate stanzas to rename already indexed events at search-time in props.conf.
For already indexed events you can modify your searches, alerts, dashboards, etc., by simply changing “sourcetype=WinEventLog:source” to “sourcetype=wineventlog” (case sensitive).
For new searches, alerts, dashboards, etc., use “source=WinEventLog:source” instead.
Hope this helps.