Patch release that implements sliding invisibility-based fetch logic with waiting on client’s side instead of SQL Server’s one (so wait statistics will be clear now) and uses SQL Server as a time authority for server heartbeats (unsynchronized clock will not cause servers to suddently disappear). Also implemented IAsyncDisposable support for service scopes in modern .NET Core applications.


  • Changed – Use SQL Server as a time authority for server heartbeats.
  • Changed – Increase MinPollingDelayMs for SQL Server to 100 milliseconds.
  • Changed – Don’t wait on SQL Server’s side when using long polling for fetching.


  • Fixed – Implement support IAsyncDisposable for IServiceScope instances for newer .NET platforms.