13.1 63.18 also has an issue with support relates to NSHELP-43998, new release will be available first week september, for now private fixes are provided on the specific HA failover (crashes) and AAA DHT resume NULL pointer derferences with also an STA validation errors on denying reconnect gateway version is 0 and expected is 3, private build is an 13.1 63.101 until the 13.1.64.x is released.

It is also fixed in 14.1

Yes specifically backported for 13.1