doc: changelog for PR#2598

Author: sebix

CHANGELOG.md

@@ -14,8 +14,10 @@ Please refer to the [NEWS](NEWS.md) for a list of changes which have an affect o
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 ### Configuration
+- New parameter `stop_retry_limit` (PR#2598 by Lukas Heindl).
 
 ### Core
+- New parameter `stop_retry_limit` to gracefully handle stopping bots which take longer to shutdown (PR#2598 by Lukas Heindl, fixes #2595).
 
 ### Development