DOC-5333 Added resolved issue for incorrect status returned by DB endpoint availability API

Author: rrelledge

content/operate/rs/release-notes/rs-7-22-releases/rs-7-22-0-216.md

@@ -67,6 +67,8 @@ The following table shows which Redis modules are compatible with each Redis dat
 
 - RS161419: Fixed an issue in the Cluster Manager UI where database configuration updates failed with "Unable to access backup server" errors after configuring Google Cloud Storage backups.
 
+- RS152761: Fixed an issue where the database endpoint availability API returned the status `500 Internal Server Error` instead of `503 Service Unavailable` if the endpoint was not available on that node.
+
 ## Version changes
 
 ### Supported platforms