SteamKit 2.3.0-Beta.1

• Added SteamMatchmaking to manage matchmaking lobbies. (#704)
• Added ParentalSettings to LoggedOnCallback. (#707)
• Added annotations for C#8 Nullable Reference Types. (#721)
• SteamUser.LogOn will now use the Cell ID specified in SteamConfiguration as a fallback. (#722)
• SteamKit will now try skip a CM that responds to a logon attempt with TryAnotherCM or ServiceUnavailable. (#773)
• Removed debug messages for each packet send/recieve event. This can be accomplished through NetHookNetworkListener or a customer IDebugNetworkListener instead. (#774)
• Log messages now uniquely identify the related SteamClient object, where relevant. (#777)
• Fixed incorrect Cell ID parameter in ContentServerDirectoryService. (#761)
• Fixed a possible exception when calling SteamApps functions with duplicated inputs. (787)
• Fixed Web API exceptions not including the numeric HTTP response code. (#779)
• Updated Steam enums and protobufs. (#685, #729, #810, #820)

BREAKING CHANGES

• Generated protobuf classes have changed slightly due to updating to a newer version of protobuf-net. (#686)
  • Attributes vary slightly, particularly with regards to the Name property on ProtoContractAttribute, ProtoMemberAttribute, and ProtoEnumAttribute.
  • For any given property, e.g. a propery named Foo, the corresponding property FooSpecified has been removed. Use ShouldSerializeFoo() instead.
  • Protobuf classes are no longer marked with the [Serializable] attribute.
• The appid parameter in SteamApps.GetDepotDecryptionKey is no longer optional. (#689)
• CDNClient no longer supports CS servers. Some public methods have had their signatures changed to accomodate this. (#725)