added v1.4.13 release notes

[Aaronontheweb]

1.4.13 December 16 2020

Maintenance Release for Akka.NET 1.4

Akka.NET v1.4.13 includes a number of bug fixes and enhancements:

AppVersion now uses Assembly Version by Default
The new AppVersion setting, which is used to communicate application version numbers throughout Akka.Cluster and is used in scenarios such as Akka.Cluster.Sharding to help determine which nodes receive new shard allocations and which ones do not, now uses the following default HOCON setting:

akka.cluster.app-version = assembly-version

By default now the AppVersion communicated inside Akka.Cluster Member events uses the Major.Minor.BuildNumber from the Assembly.GetEntryssembly() or Assembly.GetExecutingAssembly() (in case the EntryAssembly is null). That way any updates made to your executable's (i.e. the .dll that hosts Program.cs) version number will be automatically reflected in the cluster now without Akka.NET developers having to set an additional configuration value during deployments.

Other bug fixes and improvements:

• Akka.IO: UdpExt.Manager: OverflowException when sending UDP packets to terminated clients
• Akka.Configuration / Akka.Streams: Memory Leak when using many short lived instances of ActorMaterializer
• Akka: Deprecate PatternMatch
• Akka: FSM: exception in LogTermination changes stopEvent.Reason to Shutdown
• Akka.Cluster.Tools: ClusterSingleton - Ignore possible state change in start
• Akka.Cluster.Tools: DistributedPubSub - new setting and small fixes
• Akka.DistributedData: KeyNotFoundException thrown periodically

To see the full set of fixes in Akka.NET v1.4.13, please see the milestone on Github.

COMMITS	LOC+	LOC-	AUTHOR
5	316	29	Aaron Stannard
2	53	8	Gregorius Soedharmo
2	223	197	zbynek001
2	2	2	dependabot-preview[bot]
2	11	3	Ebere Abanonu
1	37	27	Razvan Goga
1	217	11	motmot80
1	2	0	Ismael Hamed