Is there any (explicitly) way to dispose the SessionState after _core.Sessions.CreateSession?

[ingted]

Only notice that TransactionReference implements IDisposable... @@"a

[NTDLS]

Yea, for general server functionality, sessions are long lived and are closed by the engine when the TCP/IP connection is closed. This is accomplished by a call to CloseByProcessId.

var session = _core.Sessions.CreateSession(context.ConnectionId, param.Username, param.ClientName);

_core.Sessions.CloseByProcessId(session.ProcessId);

The close-on-disconnect is in: NTDLS.Katzebase.Server.APIService.cs