Bump Akka.Hosting.TestKit and Akka.TestKit.Xunit2

[dependabot]

Updated Akka.Hosting.TestKit from 1.5.59 to 1.5.61.

Release notes

Sourced from Akka.Hosting.TestKit's releases.

1.5.61

1.5.61 February 26th 2026

Updates

• Bump Akka version from 1.5.60 to 1.5.61

1.5.60 February 10th 2026

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.
• Add WithContext() integration tests for MEL logger - confirmed that Akka.NET 1.5.60's WithContext() logging context enrichment works automatically with LoggerFactoryLogger. Context properties set via the core WithContext() API flow through to Microsoft.Extensions.Logging state dictionaries via TryGetProperties() without any code changes needed.

Bug Fixes

• Fix WithDefaultLogMessageFormatter<T>() rejecting built-in formatters - SemanticLogMessageFormatter and DefaultLogMessageFormatter have private constructors (they use singleton Instance properties), but the validation only accepted public parameterless constructors. These built-in types are now correctly accepted.

Deprecations

• WithDefaultLogMessageFormatter<T>() is now marked [Obsolete] — SemanticLogMessageFormatter is the default as of Akka.NET 1.5.58 and no longer needs to be set explicitly. The method still works for custom ILogMessageFormatter implementations.

Updates

• Bump Akka version from 1.5.59 to 1.5.60

1.5.60-beta1 January 29th 2026

Beta Release

This is a beta release for testing the OpenTelemetry trace correlation feature that was merged after 1.5.59.

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.

1.5.59 January 2026

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.

Bug Fixes

• Fix semantic logging not capturing named placeholders as structured properties - resolved issue #​701 where named placeholders like {Event} in log messages were not captured as searchable structured properties. Made all LoggerConfigBuilder properties optional and refactored message formatting code.
• Fix TestKit startup timeout race condition - resolved race condition in TestKit.InitializeAsync() where CancellationTokenSource.Register() threw exceptions on the timer thread, causing unhandled exceptions that crashed the test host process. Also increased default startup timeout from 10s to 30s for CI environments.

Updates

• Bump Akka version from 1.5.58 to 1.5.59
• Added OpenTelemetry package dependency (1.9.0+) for trace correlation support

1.5.58 January 9th 2026

Updates

• Bump Akka version from 1.5.57 to 1.5.58

1.5.57 December 16th 2025

New Features
... (truncated)

1.5.60

1.5.60 February 10th 2026

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.
• Add WithContext() integration tests for MEL logger - confirmed that Akka.NET 1.5.60's WithContext() logging context enrichment works automatically with LoggerFactoryLogger. Context properties set via the core WithContext() API flow through to Microsoft.Extensions.Logging state dictionaries via TryGetProperties() without any code changes needed.

Bug Fixes

• Fix WithDefaultLogMessageFormatter<T>() rejecting built-in formatters - SemanticLogMessageFormatter and DefaultLogMessageFormatter have private constructors (they use singleton Instance properties), but the validation only accepted public parameterless constructors. These built-in types are now correctly accepted.

Deprecations

• WithDefaultLogMessageFormatter<T>() is now marked [Obsolete] — SemanticLogMessageFormatter is the default as of Akka.NET 1.5.58 and no longer needs to be set explicitly. The method still works for custom ILogMessageFormatter implementations.

Updates

• Bump Akka version from 1.5.59 to 1.5.60

1.5.60-beta1 January 29th 2026

Beta Release

This is a beta release for testing the OpenTelemetry trace correlation feature that was merged after 1.5.59.

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.

1.5.59 January 2026

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.

Bug Fixes

• Fix semantic logging not capturing named placeholders as structured properties - resolved issue #​701 where named placeholders like {Event} in log messages were not captured as searchable structured properties. Made all LoggerConfigBuilder properties optional and refactored message formatting code.
• Fix TestKit startup timeout race condition - resolved race condition in TestKit.InitializeAsync() where CancellationTokenSource.Register() threw exceptions on the timer thread, causing unhandled exceptions that crashed the test host process. Also increased default startup timeout from 10s to 30s for CI environments.

Updates

• Bump Akka version from 1.5.58 to 1.5.59
• Added OpenTelemetry package dependency (1.9.0+) for trace correlation support

1.5.58 January 9th 2026

Updates

• Bump Akka version from 1.5.57 to 1.5.58

1.5.57 December 16th 2025

New Features

• Add semantic logging support for Akka.NET 1.5.56+ - enables Microsoft.Extensions.Logging to receive properly structured state dictionaries instead of pre-formatted strings. When using Akka.NET 1.5.56+, log messages now include structured properties from the semantic logging API along with Akka metadata (ActorPath, Timestamp, Thread, LogSource). Fully backwards compatible with older Akka.NET versions.

Updates

• Bump Akka version from 1.5.55 to 1.5.57

... (truncated)

1.5.60-beta1

1.5.60-beta1 January 29th 2026

Beta Release

This is a beta release for testing the OpenTelemetry trace correlation feature that was merged after 1.5.59.

New Features

• Add OpenTelemetry trace correlation support for LoggerFactoryLogger - enables proper trace correlation for logs emitted from actor code. Solves the problem that Activity.Current doesn't flow across actor mailbox boundaries because it uses AsyncLocal<T>. When using Akka.NET 1.5.59+, LogEvent.ActivityContext captures trace context at log creation time and flows it through to OpenTelemetry LogRecords via the new AkkaTraceContextProcessor. Register with options.AddAkkaTraceCorrelation() in your OpenTelemetry logging configuration.

Commits viewable in compare view.

Updated Akka.TestKit.Xunit2 from 1.5.59 to 1.5.61.

Release notes

Sourced from Akka.TestKit.Xunit2's releases.

1.5.61

1.5.61 February 26th, 2026

Akka.NET v1.5.61 is a maintenance release with important bug fixes for Akka.Cluster.Sharding, Akka.Cluster, and Akka.Core.

Akka.Cluster.Sharding Bug Fixes

• Port Pekko ShardStopped handler + handoff safety net - Fixes issue #​7500. Resolves a critical issue where shards could fail to hand off indefinitely during scale-up events.
• Fix Shard remember-entities flag mismatch causing entity restart failures - Fixes a bug where the Entities class was initialized with the wrong RememberEntities flag.
• Correct self-comparison in ShardCoordinator ResendShardHost handler - Fixes a bug where the ResendShardHost handler compared a region variable to itself instead of comparing against the message's region.

Akka.Cluster Bug Fixes

• VectorClock inequality fixes - Fixes the != operator which incorrectly delegated to IsConcurrentWith instead of being the logical negation of ==, and fixes the < operator to correctly exclude the equal case.
• Correct format index in 3-arg LogInfo overload - Fixes a logging bug where the 3-arg LogInfo overload used the wrong format index.

Bug Fixes

• Fix wrong randomFactor argument type on RetrySupport.Retry() - Fixes issue #​8059. Changes the randomFactor parameter type from int to double to match the expected behavior for jitter calculations.
• AppVersion.CompareTo missing else if breaks comparison symmetry - Fixes a bug where release versions appeared less than their pre-release counterparts.
• Remove stray dollar signs from interpolated strings - Fixes three string interpolation bugs in output in ClusterHeartbeat, ShardRegion, and SinkRefImpl.

Improvements

• Downgrade VirtualPathContainer RemoveChild log from Warning to Debug - Fixes issue #​8037. Eliminates noisy warnings during high-load Ask operations.

4 contributors since release 1.5.60

COMMITS	LOC+	LOC-	AUTHOR
4	2085	27	Aaron Stannard
5	52	14	Matt Kotsenas
3	151	9	Gregorius Soedharmo
1	2	2	Apoorv Darshan

To see the full set of changes in Akka.NET v1.5.61, click here.

Changes:

• a5b74fdc056c9129595418fc76473fbaafc90361 Update RELEASE_NOTES.md for 1.5.61 release (#​8063)
• e5eda84a2456b46adf7b871f108097911f2e5b39 Update v1.5 branch with latest v1.6 changes (#​8062) [ #​8046, #​8052, #​8048, #​8037, #​8051, #​8054, #​8050, #​7500, #​8055, #​8056, #​8057, #​8058, #​8061 ]
• 60530835dee3e03aa95bcdcf9d96c8ece2666133 Update API Approval list for .net 4.8
• be798e75df2c79c683f19719aea261a534fdaf37 Fix wrong randomFactor argument type on RetrySupport.Retry() (#​8061)
• 1acf5dce21da04c71c2660084470b03110c4af48 VectorClock inequality fixes (#​8058)
• 84217761134a80061bd733264dbd57b7f145dfa0 fix: remove stray dollar signs from interpolated strings (#​8057)
• 6fb236b6bf8bdbb8fd2872a1606bab694cc6dbfc fix: correct format index in 3-arg LogInfo overload (#​8056)
• 53312a03c73d9c4138b9cd34f5b4d1d5eeca8bc2 Port Pekko ShardStopped handler + handoff safety net (#​7500) (#​8055)
• 1b0f61a0eb9b84fbd1583bf9cedaf16449b58648 Correct self-comparison in ShardCoordinator ResendShardHost handler (#​8050)
• c6c20805082a524ff0081a2e766f2e04ba4896d6 Fix Shard remember-entities flag mismatch causing entity restart failures (#​8054)

See More

... (truncated)

1.5.60

1.5.60 February 9th, 2026

Akka.NET v1.5.60 is a maintenance release with a bug fix and a new feature for structured logging.

Bug Fixes

• Fix TestActor initialization race in parallel test startup - Fixes a race condition where TestActor could receive messages before its initialization was complete when tests were run in parallel, causing intermittent test failures.

New Features

• Add logging context enrichment and scopes - Fixes issue #​7535. Adds WithContext() and BeginScope() extension methods to ILoggingAdapter for structured logging context enrichment. Context properties are automatically included in log output and forwarded to downstream logging providers like Serilog and NLog. See documentation.

  var log = Logging.GetLogger(Sys, "example");
  
  // Enrich a logger with additional structured context
  var enrichedLog = log
      .WithContext("Tenant", "foo")
      .WithContext("Partition", 12);
  
  enrichedLog.Info("Processing {Offset}", 42);
  // Output: [INFO][...][akka://sys/user/a][Tenant=foo][Partition=12] Processing 42
  
  // Create a temporary logging scope
  using (var scope = log.BeginScope("RequestId", "REQ-123"))
  {
      scope.Log.Info("Handling request {RequestId}", "REQ-123");
  }

COMMITS	LOC+	LOC-	AUTHOR
2	581	89	Aaron Stannard

To see the full set of changes in Akka.NET v1.5.60, click here.

Changes:

• 174a81d4d6a056c0fb3d55b207a4e7a8cba2c78c Update version to 1.5.60 and add release notes (#​8045)
• dfcb680afd5b372eec549beebd8cd37ad2dfb6ad Add logging context enrichment and scopes (#​8042)
• 717b53f74e2432db6119fc754fba0e0bc4eb72e7 Fix TestActor initialization race in parallel test startup (#​8023)

This list of changes was auto generated.

Commits viewable in compare view.

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[Aaronontheweb]

@dependabot rebase

[Aaronontheweb]

@dependabot rebase

[dependabot]

Dependabot could not find a dependency.. Because of this, Dependabot cannot update this pull request.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.