Release v1.5.57-beta2

.gitignore

@@ -1,6 +1,9 @@
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 
+# Claude configuration
+.claude/
+
 # User-specific files
 *.suo
 *.user

Directory.Build.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <Copyright>Copyright © 2013-$([System.DateTime]::Now.Year) Akka.NET Team</Copyright>
     <Authors>Akka.NET Team</Authors>
-    <VersionPrefix>1.5.34</VersionPrefix>
+    <VersionPrefix>1.5.56</VersionPrefix>
     <PackageIcon>akkalogo.png</PackageIcon>
     <PackageProjectUrl>https://getakka.net/</PackageProjectUrl>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
@@ -50,7 +50,15 @@
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
   </PropertyGroup>
   <PropertyGroup>
-    <PackageReleaseNotes>Placeholder for nightlies*</PackageReleaseNotes>
+    <PackageReleaseNotes>Akka.NET v1.5.56 is a patch release containing important bug fixes for Akka.Remote and Akka.Streams.
+
+**Bug Fixes:**
+
+* [Fix: Akka.Remote should not shutdown on invalid TLS traffic](https://github.com/akkadotnet/akka.net/pull/7952) - Fixes [issue #7938](https://github.com/akkadotnet/akka.net/issues/7938) where invalid traffic (like HTTP requests) hitting a TLS-enabled Akka.Remote port would cause the entire ActorSystem to shut down. Server now rejects invalid connections gracefully without terminating.
+
+* [fix(streams): prevent race condition in ChannelSource on channel completion](https://github.com/akkadotnet/akka.net/pull/7951) - Fixes [issue #7940](https://github.com/akkadotnet/akka.net/issues/7940) where a `NullReferenceException` could occur when completing a `ChannelWriter` while the stream is waiting for data. Added atomic flag to prevent race condition between `OnReaderComplete` and `OnValueRead` callbacks.
+
+To see the full set of changes in Akka.NET v1.5.56, click here: https://github.com/akkadotnet/akka.net/milestone/139?closed=1</PackageReleaseNotes>
   </PropertyGroup>
   <ItemGroup Label="Analyzers" Condition="'$(MSBuildProjectName)' != 'Akka'">
     <PackageReference Include="Akka.Analyzers" Version="$(AkkaAnalyzerVersion)" PrivateAssets="all" />
@@ -72,4 +80,4 @@
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
   </PropertyGroup>
-</Project>
+</Project>

RELEASE_NOTES.md

@@ -1,6 +1,189 @@
-#### 1.5.48 August 14th, 2025 ####
+#### 1.5.57-beta1 December 2nd, 2025 ####
 
-**Placeholder for nightly build**
+Akka.NET v1.5.57-beta1 is a beta release containing a significant new feature for structured/semantic logging.
+
+**New Features:**
+
+* [Add native semantic logging support with property extraction](https://github.com/akkadotnet/akka.net/pull/7955) - Fixes [issue #7932](https://github.com/akkadotnet/akka.net/issues/7932). This release adds comprehensive structured logging support to Akka.NET with both positional (`{0}`) and named (`{PropertyName}`) message template parsing, enabling seamless integration with modern logging frameworks like Serilog, NLog, and Microsoft.Extensions.Logging. Key capabilities include:
+  - New `LogMessage.PropertyNames` and `GetProperties()` APIs for property extraction
+  - `SemanticLogMessageFormatter` as the new default formatter
+  - Performance optimized with 75% allocation reduction compared to the previous implementation
+  - Zero new dependencies and fully backward compatible
+  - EventFilter support for semantic templates in unit tests
+
+1 contributor since release 1.5.56
+
+| COMMITS | LOC+ | LOC- | AUTHOR |
+| --- | --- | --- | --- |
+| 1 | 2317 | 14 | Aaron Stannard |
+
+To [see the full set of changes in Akka.NET v1.5.57-beta1, click here](https://github.com/akkadotnet/akka.net/milestone/140?closed=1)
+
+#### 1.5.56 November 25th, 2025 ####
+
+Akka.NET v1.5.56 is a patch release containing important bug fixes for Akka.Remote and Akka.Streams.
+
+**Bug Fixes:**
+
+* [Fix: Akka.Remote should not shutdown on invalid TLS traffic](https://github.com/akkadotnet/akka.net/pull/7952) - Fixes [issue #7938](https://github.com/akkadotnet/akka.net/issues/7938) where invalid traffic (like HTTP requests) hitting a TLS-enabled Akka.Remote port would cause the entire ActorSystem to shut down. Server now rejects invalid connections gracefully without terminating.
+
+* [fix(streams): prevent race condition in ChannelSource on channel completion](https://github.com/akkadotnet/akka.net/pull/7951) - Fixes [issue #7940](https://github.com/akkadotnet/akka.net/issues/7940) where a `NullReferenceException` could occur when completing a `ChannelWriter` while the stream is waiting for data. Added atomic flag to prevent race condition between `OnReaderComplete` and `OnValueRead` callbacks.
+
+1 contributor since release 1.5.55
+
+| COMMITS | LOC+ | LOC- | AUTHOR |
+| --- | --- | --- | --- |
+| 2 | 162 | 6 | Aaron Stannard |
+
+To [see the full set of changes in Akka.NET v1.5.56, click here](https://github.com/akkadotnet/akka.net/milestone/139?closed=1)
+
+#### 1.5.55 October 26th, 2025 ####
+
+Akka.NET v1.5.55 is a patch release containing important stability and security improvements for Akka.Remote.
+
+**Akka.Remote Stability Improvements:**
+
+* [Akka.Remote: harden EndpointWriter against serialization failures](https://github.com/akkadotnet/akka.net/pull/7925) - Fixes [issue #7922](https://github.com/akkadotnet/akka.net/issues/7922) by hardening the `EndpointWriter` against a broader range of potential serialization failures, improving overall remoting stability.
+
+**Akka.Remote Security Improvements:**
+
+* [Custom certificate validation with single execution path - fixes mTLS asymmetry bug](https://github.com/akkadotnet/akka.net/pull/7921) - Fixes [issue #7914](https://github.com/akkadotnet/akka.net/issues/7914) by introducing programmatic certificate validation helpers through the new `CertificateValidation` factory class. This release adds 7 new validation helper methods including `ValidateChain()`, `ValidateHostname()`, `PinnedCertificate()`, `ValidateSubject()`, `ValidateIssuer()`, `Combine()`, and `ChainPlusThen()`. The update also fixes an mTLS asymmetry bug where server-side hostname validation was not being applied consistently with client-side validation, all while maintaining full backward compatibility with existing HOCON-based validation.
+
+* [Fix DotNettySslSetup being ignored when HOCON has valid SSL config](https://github.com/akkadotnet/akka.net/pull/7919) - Fixes [issue #7917](https://github.com/akkadotnet/akka.net/issues/7917) where programmatic `DotNettySslSetup` settings were incorrectly being overridden by HOCON configuration. Programmatic configuration now correctly takes precedence over HOCON defaults as intended.
+
+1 contributor since release 1.5.54
+
+| COMMITS | LOC+ | LOC- | AUTHOR |
+| --- | --- | --- | --- |
+| 3 | 1605 | 289 | Aaron Stannard |
+
+
+To [see the full set of changes in Akka.NET v1.5.55, click here](https://github.com/akkadotnet/akka.net/milestone/138?closed=1)
+
+#### 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](https://github.com/akkadotnet/akka.net/pull/7907) - Fixes [issue #7895](https://github.com/akkadotnet/akka.net/issues/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](https://github.com/akkadotnet/akka.net/pull/7912) - Fixes [issue #7910](https://github.com/akkadotnet/akka.net/issues/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
+
+| COMMITS | LOC+ | LOC- | AUTHOR |
+| --- | --- | --- | --- |
+| 2 | 159 | 20 | Aaron Stannard |
+
+
+To [see the full set of changes in Akka.NET v1.5.54, click here](https://github.com/akkadotnet/akka.net/milestone/137?closed=1)
+
+#### 1.5.53 October 9th, 2025 ####
+
+Akka.NET v1.5.53 is a security patch containing important fixes for TLS/SSL hostname validation and improved error diagnostics for certificate authentication issues.
+
+**Security Fixes:**
+
+* [Fix TLS hostname validation bug and add configurable validation](https://github.com/akkadotnet/akka.net/pull/7897) - Fixes a critical bug where TLS clients validated against their own certificate DNS name instead of the remote server address, particularly affecting mutual TLS scenarios. This release also adds a new `validate-certificate-hostname` configuration option to `akka.remote.dot-netty.tcp` (defaults to `false` for backward compatibility) and introduces type-safe validation APIs through the new `TlsValidationCallbacks` factory class.
+
+**Improvements:**
+
+* [Improve TLS/SSL certificate error messages during handshake failures](https://github.com/akkadotnet/akka.net/pull/7891) - Provides human-readable, actionable error messages for TLS/SSL certificate validation failures with detailed troubleshooting guidance, significantly improving the developer experience when configuring certificate-based authentication.
+
+1 contributor since release 1.5.52
+
+| COMMITS | LOC+ | LOC- | AUTHOR |
+| --- | --- | --- | --- |
+| 2 | 1060 | 77 | Aaron Stannard |
+
+
+To [see the full set of changes in Akka.NET v1.5.53, click here](https://github.com/akkadotnet/akka.net/milestone/136?closed=1)
+
+#### 1.5.52 October 6th, 2025 ####
+
+**SECURITY PATCH**
+
+Akka.NET v1.5.52 is a security patch containing crucial fixes for enforcing certificate-based authentication using mTLS enforcement. Please see https://getakka.net/articles/remoting/security.html for details on how this works.
+
+* [Akka.Remote: implement mutual TLS authentication support](https://github.com/akkadotnet/akka.net/pull/7851)
+* [Akka.Remote: validate SSL certificate private key access at server startup](https://github.com/akkadotnet/akka.net/pull/7847)
+
+Other fixes:
+
+* [Akka.Cluster.Sharding: ShardedDaemonSets: randomize starting worker index](https://github.com/akkadotnet/akka.net/pull/7857)
+
+1 contributors since release 1.5.51
+
+| COMMITS | LOC+ | LOC- | AUTHOR |
+| --- | --- | --- | --- |
+| 3 | 1193 | 149 | Aaron Stannard |
+
+
+To [see the full set of changes in Akka.NET v1.5.52, click here](https://github.com/akkadotnet/akka.net/milestone/135?closed=1)
+
+#### 1.5.51 October 1st, 2025 ####
+
+Akka.NET v1.5.51 is a minor patch containing a remoting bug fix and add required codes to support persistence health check.
+
+* [Remote: Fix DotNetty TLS handshake error handling](https://github.com/akkadotnet/akka.net/pull/7839)
+* [Persistence: Add health check handling code](https://github.com/akkadotnet/akka.net/pull/7842)
+
+2 contributors since release 1.5.50
+
+| COMMITS | LOC+ | LOC- | AUTHOR              |
+|---------|------|------|---------------------|
+| 1       | 609  | 31   | Aaron Stannard      |
+| 1       | 139  | 5    | Gregorius Soedharmo |
+
+To [see the full set of changes in Akka.NET v1.5.51, click here](https://github.com/akkadotnet/akka.net/milestone/134?closed=1)
+
+#### 1.5.50 September 22nd, 2025 ####
+
+Akka.NET v1.5.50 is a minor patch containing a bug fix.
+
+* [Remote: Propagate error from DotNetty TLS Handshake failure to Akka.Remote](https://github.com/akkadotnet/akka.net/pull/7824)
+
+1 contributor since release 1.5.49
+
+| COMMITS | LOC+ | LOC- | AUTHOR              |
+|---------|------|------|---------------------|
+| 1       | 187  | 1    | Gregorius Soedharmo |
+
+To [see the full set of changes in Akka.NET v1.5.50, click here](https://github.com/akkadotnet/akka.net/milestone/133?closed=1)
+
+#### 1.5.49 September 10th, 2025 ####
+
+Akka.NET v1.5.49 is a minor patch containing several bug fixes.
+
+* [Core: Fix IIS/Windows Service console race condition](https://github.com/akkadotnet/akka.net/pull/7793)
+* [DData: Fix Replicator.ReceiveUnsubscribe boolean logic](https://github.com/akkadotnet/akka.net/pull/7809)
+* [Streams: Fix ConcurrentAsyncCallback with ChannelSource throws NRE](https://github.com/akkadotnet/akka.net/pull/7808)
+
+3 contributors since release 1.5.48
+
+| COMMITS | LOC+ | LOC- | AUTHOR              |
+|---------|------|------|---------------------|
+| 18      | 6011 | 9343 | Aaron Stannard      |
+| 18      | 3760 | 3880 | Gregorius Soedharmo |
+| 1       | 1    | 1    | dependabot[bot]     |
+
+To [see the full set of changes in Akka.NET v1.5.49, click here](https://github.com/akkadotnet/akka.net/milestone/132?closed=1)
+
+#### 1.5.48 August 21st, 2025 ####
+
+Akka.NET v1.5.48 is a minor patch containing stability improvement to Akka.TestKit.
+
+* [TestKit: Fix deadlock during parallel test execution](https://github.com/akkadotnet/akka.net/pull/7787)
+
+2 contributors since release 1.5.47
+
+| COMMITS | LOC+ | LOC- | AUTHOR              |
+|---------|------|------|---------------------|
+| 4       | 5494 | 5561 | Aaron Stannard      |
+| 2       | 204  | 66   | Gregorius Soedharmo |
+
+To [see the full set of changes in Akka.NET v1.5.48, click here](https://github.com/akkadotnet/akka.net/milestone/131?closed=1)
 
 #### 1.5.47 August 12th, 2025 ####
 

build-system/azure-pipeline.mntr-template.yaml

@@ -20,6 +20,19 @@ jobs:
         inputs:
           packageType: 'sdk'
           useGlobalJson: true
+
+      # Set the Incrementalist base branch based on PR target branch
+      - pwsh: |
+          if ('$(Build.Reason)' -eq 'PullRequest') {
+            # Extract branch name from refs/heads/branch format
+            $targetBranch = '$(System.PullRequest.TargetBranch)'.Replace('refs/heads/', '')
+            Write-Host "PR detected - using base branch: $targetBranch"
+            Write-Host "##vso[task.setvariable variable=IncrementalistBaseBranch]$targetBranch"
+          } else {
+            Write-Host "Not a PR - using default base branch: dev"
+            Write-Host "##vso[task.setvariable variable=IncrementalistBaseBranch]dev"
+          }
+        displayName: 'Set Incrementalist base branch'
 
       - script: dotnet tool restore
         displayName: 'Restore dotnet tools'

build-system/azure-pipeline.template.yaml

@@ -27,6 +27,19 @@ jobs:
         inputs:
           packageType: 'sdk'
           useGlobalJson: true
+
+      # Set the Incrementalist base branch based on PR target branch
+      - pwsh: |
+          if ('$(Build.Reason)' -eq 'PullRequest') {
+            # Extract branch name from refs/heads/branch format
+            $targetBranch = '$(System.PullRequest.TargetBranch)'.Replace('refs/heads/', '')
+            Write-Host "PR detected - using base branch: $targetBranch"
+            Write-Host "##vso[task.setvariable variable=IncrementalistBaseBranch]$targetBranch"
+          } else {
+            Write-Host "Not a PR - using default base branch: dev"
+            Write-Host "##vso[task.setvariable variable=IncrementalistBaseBranch]dev"
+          }
+        displayName: 'Set Incrementalist base branch'
 
       - script: dotnet tool restore
         displayName: 'Restore dotnet tools'

build-system/pr-validation.yaml

@@ -59,7 +59,7 @@ jobs:
       name: "netfx_tests_windows"
       displayName: ".NET Framework Unit Tests (Windows)"
       vmImage: "windows-latest"
-      command: "dotnet incrementalist run --config .incrementalist/testsOnly.json -- test -c Release --no-build --framework net48 --logger:trx --results-directory TestResults"
+      command: "dotnet incrementalist run --config .incrementalist/testsOnly.json --branch $(IncrementalistBaseBranch) -- test -c Release --no-build --framework net48 --logger:trx --results-directory TestResults"
       outputDirectory: "TestResults"
       artifactName: "netfx_tests_windows-$(Build.BuildId)"
 
@@ -80,7 +80,7 @@ jobs:
       name: "net_tests_windows"
       displayName: ".NET Unit Tests (Windows)"
       vmImage: "windows-latest"
-      command: "dotnet incrementalist run --config .incrementalist/testsOnly.json -- test -c Release --no-build --framework net8.0 --logger:trx --results-directory TestResults"
+      command: "dotnet incrementalist run --config .incrementalist/testsOnly.json --branch $(IncrementalistBaseBranch) -- test -c Release --no-build --framework net8.0 --logger:trx --results-directory TestResults"
       outputDirectory: "TestResults"
       artifactName: "net_tests_windows-$(Build.BuildId)"
 
@@ -89,7 +89,7 @@ jobs:
       name: "net_tests_linux"
       displayName: ".NET Unit Tests (Linux)"
       vmImage: "ubuntu-latest"
-      command: "dotnet incrementalist run --config .incrementalist/testsOnly.json -- test -c Release --no-build --framework net8.0 --logger:trx --results-directory TestResults"
+      command: "dotnet incrementalist run --config .incrementalist/testsOnly.json --branch $(IncrementalistBaseBranch) -- test -c Release --no-build --framework net8.0 --logger:trx --results-directory TestResults"
       outputDirectory: "TestResults"
       artifactName: "net_tests_linux-$(Build.BuildId)"
 
@@ -98,7 +98,7 @@ jobs:
       name: "net_mntr_windows"
       displayName: ".NET Multi-Node Tests (Windows)"
       vmImage: "windows-latest"
-      command: "dotnet incrementalist run --config .incrementalist/mutliNodeOnly.json -- test -c Release --no-build --framework net8.0 --logger:trx --results-directory TestResults/multinode"
+      command: "dotnet incrementalist run --config .incrementalist/mutliNodeOnly.json --branch $(IncrementalistBaseBranch) -- test -c Release --no-build --framework net8.0 --logger:trx --results-directory TestResults/multinode"
       outputDirectory: "TestResults"
       artifactName: "net_mntr_windows-$(Build.BuildId)"
       mntrFailuresDir: 'TestResults\\multinode'

build-system/windows-release.yaml

@@ -3,7 +3,6 @@
 
 pool:
   vmImage: windows-latest
-  demands: Cmd
 
 trigger:
   branches:
@@ -45,4 +44,4 @@ steps:
       title: '$(projectName) v$(Build.SourceBranchName)'
       releaseNotesFile: 'RELEASE_NOTES.md'
       assets: |
-        $(Build.ArtifactStagingDirectory)/nuget/*.nupkg
+        $(Build.ArtifactStagingDirectory)/nuget/*.nupkg