akkadotnet/akka.net 1.5.54

Akka.NET v1.5.54

on GitHub

1.5.54 October 17th, 2025

Akka.NET v1.5.54 is a patch release containing important bug fixes for Akka.Streams and Akka.DistributedData.

Bug Fixes:

• Fix SourceRef.Source and SinkRef.Sink non-idempotent property bug - Fixes issue #7895 where ISourceRef<T>.Source and ISinkRef<T>.Sink properties created new stage instances on every access, causing race conditions and intermittent subscription timeouts. These properties are now idempotent using Lazy<T>, preventing failures from accidental property access (debugger inspection, logging, serialization frameworks).

• Fix LWWDictionary.Delta ArgumentNullException when underlying delta is null - Fixes issue #7910 where LWWDictionary.Delta would throw ArgumentNullException when the underlying ORDictionary.Delta was null, which is a legitimate state after initialization or calling ResetDelta().

1 contributor since release 1.5.53

Changes:

• e7bf0c7 Prepare v1.5.54 release
• eb020d0 Fix LWWDictionary.Delta ArgumentNullException when underlying delta is null (#7910) (#7911) (#7912)
• 53e1b3d [v1.5] Fix SourceRef.Source and SinkRef.Sink non-idempotent property bug (#7907) [ #7895 ]
• e1c4b4f Prepare v1.5.53 release (#7900)

This list of changes was auto generated.