I would like to propose bringing “GEODE-7465: Set eventProcessor to null in serial AEQ when it is stopped” into the 1.11 release (necessitating an RC4).
Without the fix, a sequence of ordinary gfsh commands will leave the WAN gateway in an unrecoverable hung state: stop gateway-sender start gateway-sender The only recourse is to restart the server. This fix is critical because the distributed system fails to sync data between WAN sites as the user would expect. This issue did exist in previous releases, but recent enhancements to WAN/AEQ such as AEQ-pause are increasing user interaction with WAN-related gfsh commands. The fix is simple, low risk, tested, and has been on develop for 5 days: https://github.com/apache/geode/commit/e148cef9cb63eba283cf86bc490eb280023567ce