Merge pull request #179150 from RobdeJong/patch-102

Update reference-connect-version-history.md

Author: PRMerger7

articles/active-directory/hybrid/reference-connect-version-history.md

@@ -69,6 +69,9 @@ However, if you'd like all the latest features and updates, the best way to see
 - We fixed a bug where the Autoupgrade process attempted to upgrade AADConnect servers that are running older Windows OS version 2008 or 2008 R2 and failed. These versions of Windows Server are no longer supported. In this release we only attempt autoupgrade on machines that run Windows Server 2012 or newer.
 - We fixed an issue where, under certain conditions, miisserver would be crashing due to access violation exception.
 
+### Known Issues
+- There is an issue where customers who have the V2 endpoint running with an older version and try to upgrade to a newer V1.6 release will see that the 50K limitation on group membership is reinstated. We will not fix this issue in V1.6 and require customers to upgrade to AADConnect V2.0 if this is an issue for them.
+
 ## 2.0.28.0
 
 >[!NOTE]