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.NET 11.0.1xx Preview 6 (11720)

.NET 11.0.1xx Preview 6 (11720) Pre-release
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@rolfbjarne rolfbjarne released this 15 Jul 10:32
dotnet-11.0.1xx-preview6-11720
624e2ab
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We're excited to announce our sixth preview release for .NET 11!

Note

  • Xcode 26.6 is required with this release. Xcode 26.5 requires macOS 26.2+.

These are the base SDKs that add support for the platforms in question. For MAUI (which is built on top of our SDKs), visit: https://learn.microsoft.com/dotnet/maui/.

This release consists of the following versions:

Full release notes: .NET 11 release notes
Known issues: Known issues in .NET 11

Installation

You can use workload set version 11.0.100-preview.6.26364.2 in order to install these versions of the SDKs,
please make sure to be using the sixth preview of the .NET SDK 11.0.100 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 11.0.100 or greater before proceeding.

dotnet workload install <workload id(s)> --version 11.0.100-preview.6.26364.2

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 11.0.100-preview.6.26364.2

You can use dotnet workload --info to validate the workload versions installed in your system.

New features

CoreCLR is now the runtime

We've switched to using CoreCLR as the runtime for iOS, tvOS and Mac Catalyst (it's been the runtime on macOS since .NET 6).

Most apps will see:

  • Smaller app size.
  • Faster launch and runtime execution.
  • Faster builds, both for debug and release.

We're looking for testers to ensure everything works as expected - using CoreCLR should be a drop-in replacement.

Please test your applications and report any issues, either if something doesn't work, or if app size or runtime performance is worse.

What's Changed

  • [assembly-preparer] Create a new tool to replace pre-mark custom linker steps. by @rolfbjarne in #25652
  • [bgen] Cache raw GetCustomAttributesData() results per provider by @rolfbjarne in #25564
  • [bgen] Propagate simulator availability attributes to smart-enum field accessors by @dalexsoto in #25681
  • [bgen] Remove support for ZeroCopyStrings by @rolfbjarne in #25515
  • [bgen] Replace XPath lookups with Dictionary in DocumentationManager by @rolfbjarne in #25521
  • [docs] Fix reference to the ReferenceNativeSymbol item group. by @rolfbjarne in #25579
  • [docs] Improve XML docs for StatusCode by @rolfbjarne in #25730
  • [docs] Improve XML docs for StatusCodeError by @rolfbjarne in #25710
  • [docs] Improve XML docs for SystemConfigurationException by @rolfbjarne in #25704
  • [docs] Minor update to docs about how to update api docs. by @rolfbjarne in #25595
  • [dotnet-linker] Add a trimmer step to inline calls to Class.GetHandle[Intrinsic]. by @rolfbjarne in #25318
  • [dotnet] Don't enable InlineClassGetHandle if we're using the static registrar as a custom trimmer step. by @rolfbjarne in #25524
  • [dotnet] Fix the .NET 10 MSI minor-version computation for Xcode 27 and later by @dalexsoto in #25688
  • [dotnet] Put type-map.txt into the linker cache directory. by @rolfbjarne in #25654
  • [dotnet] Quote MlaunchPath in generated mobile run scripts by @rolfbjarne in #25680
  • [dotnet] Use desktop MSBuild task assemblies in VS for all platforms by @kotlarmilos in #25662
  • [Foundation] Simplify memory management of NSObjectData for CoreCLR. by @rolfbjarne in #25507
  • [mobile] .NET 11 mobile runtime configuration updates by @kotlarmilos in #25672
  • [msbuid] Fix Content items with PublishFolderType losing files that match SDK names. Fixes #25497. by @rolfbjarne in #25528
  • [msbuild] Fix getting an x64 simulator if asked to build for x64. by @rolfbjarne in #25614
  • [msbuild] Improve diagnostics when simulator runtimes aren't available, Fixes #25298 by @rolfbjarne in #25483
  • [msbuild] Improve how we handle the path to Xcode. by @rolfbjarne in #24021
  • [msbuild] Make inlined dlfcn native symbol references weak + dlsym fallback by @dalexsoto in #25683
  • [mtouch] Guard RunRegistrar calls with platform ifdef checks by @rolfbjarne in #25678
  • [net11.0] 'dotnet watch' works again now, so enable the corresponding tests. by @rolfbjarne in #25712
  • [net11.0] [dotnet] Remove workaround for dotnet/sdk#52480 by @rolfbjarne in #25720
  • [net11.0] [dotnet] Remove workaround for ResolveReadyToRunCompilers failing. Fixes #24495. by @rolfbjarne in #25719
  • [net11.0] R2R-compile only System.Private.CoreLib for Debug CoreCLR arm64 builds by @rolfbjarne in #25787
  • [net11.0] R2R-compile only System.Private.CoreLib for Debug CoreCLR mobile builds by @kotlarmilos in #25583
  • [NSObject] Store the super handle in a ConditionalWeakTable. by @rolfbjarne in #25454
  • [NSUrlSessionHandler] Reject unsupported auth methods to allow fallback to Basic. Fixes #25485. by @rolfbjarne in #25493
  • [release/11.0.1xx-preview6] [msbuild] Always build referenced extension projects by default by @rolfbjarne in #25854
  • [release/11.0.1xx-preview6] [net11.0] Don't run GenerateR2RModuleRegistration remotely. by @rolfbjarne in #25951
  • [release/11.0.1xx-preview6] Bump mlaunch to get retry fix. by @rolfbjarne in #26025
  • [release/11.0.1xx-preview6] Bump mlaunch to support Xcode 27 Device Hub (#25768) by @dalexsoto with @Copilot in #25807
  • [release/11.0.1xx-preview6] Update to use stable Xcode 26.6 by @dalexsoto in #25853
  • [runtime] Show the error code if calling coreclr_initialize fails. by @rolfbjarne in #25544
  • [runtime] Use method_getTypeEncoding instead of the deprecated method_getDescription by @dalexsoto in #25686
  • [src] Fix numerous API typos and improve the introspection typo test. Fixes #25397. by @rolfbjarne in #25706
  • [src] Mark MKDistanceFormatter as thread-safe. Fixes #25617. by @rolfbjarne in #25620
  • [src] NSBindingSelectionMarker is in AppKit. by @rolfbjarne in #25523
  • [src] Remove CIFilterGenerator from iOS and Mac Catalyst. by @rolfbjarne in #25630
  • [src] Remove NSPrintPreviewGraphicsContext. by @rolfbjarne in #25527
  • Add support for Composer Icons by @rolfbjarne in #24722
  • Downgrade MT2255 warning to a log message Fixes #25670 by @rolfbjarne in #25696
  • Make NSUrlSessionHandler handle redirects like the .NET handlers do by @dalexsoto in #25529
  • Revert "[net11.0] R2R-compile only System.Private.CoreLib for Debug CoreCLR mobile builds" by @rolfbjarne in #25735

Full Changelog: dotnet-11.0.1xx-preview5-11546...dotnet-11.0.1xx-preview6-11720

Contributors

dalexsoto, rolfbjarne, and kotlarmilos
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.NET 10 - Xcode 26.6 support (26.5.10301)

.NET 10 - Xcode 26.6 support (26.5.10301) Latest
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@rolfbjarne rolfbjarne released this 15 Jul 10:33
dotnet-10.0.1xx-xcode26.6-10301
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Note

  • Xcode 26.6 is required with this release. Xcode 26.6 requires macOS 26.2+ (Tahoe).

This is a servicing release to the previous .NET 10 release.

These are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

This release consists of the following versions:

Installation

You can use workload set version 10.0.302.0 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 10.0.302 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 10.0.302 before proceeding.

dotnet workload install <workload id(s)> --version 10.0.302.0

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 10.0.302.0

You can use dotnet workload --info to validate the workload versions installed in your system.

Full release notes: https://github.com/dotnet/macios/wiki/.NET-10-release-notes

What's Changed

Full Changelog: dotnet-10.0.1xx-xcode26.5-10284...dotnet-10.0.1xx-xcode26.6-10301

Contributors

dalexsoto and rolfbjarne
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.NET 11.0.1xx Preview 5 (11546)

.NET 11.0.1xx Preview 5 (11546) Pre-release
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@dalexsoto dalexsoto released this 09 Jun 22:52
dotnet-11.0.1xx-preview5-11546
5d26a4d

We're excited to announce our fifth preview release for .NET 11!

Note

  • Xcode 26.5 is required with this release. Xcode 26.5 requires macOS 26.2+.

These are the base SDKs that add support for the platforms in question. For MAUI (which is built on top of our SDKs), visit: https://learn.microsoft.com/dotnet/maui/.

This release consists of the following versions:

Full release notes: .NET 11 release notes
Known issues: Known issues in .NET 11

Installation

You can use workload set version 11.0.100-preview.5.26309.3 in order to install these versions of the SDKs,
please make sure to be using the fifth preview of the .NET SDK 11.0.100 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 11.0.100 or greater before proceeding.

dotnet workload install <workload id(s)> --version 11.0.100-preview.5.26309.3

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 11.0.100-preview.5.26309.3

You can use dotnet workload --info to validate the workload versions installed in your system.

New features

(Experimental) CoreCLR

We've added support for using CoreCLR as the runtime for iOS, tvOS and Mac Catalyst, and this is now the default runtime.

Most apps will see:

  • Smaller app size.
  • Faster launch and runtime execution.
  • Faster builds, both for debug and release.

We're looking for testers to ensure everything works as expected - using CoreCLR should be a drop-in replacement (it's been the runtime on macOS since .NET 6)

To enable, add this to your project file:

<!-- Use CoreCLR on iOS -->
<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">
    <UseMonoRuntime>false</UseMonoRuntime>
</PropertyGroup>

<!-- Use CoreCLR on tvOS -->
<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tvos'">
    <UseMonoRuntime>false</UseMonoRuntime>
</PropertyGroup>

<!-- Use CoreCLR on Mac Catalyst -->
<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">
    <UseMonoRuntime>false</UseMonoRuntime>
</PropertyGroup>

Please try this in your applications and report any issues, either if something doesn't work, or if app size or runtime performance is worse.

Known issues (these will be fixed in a future preview):

  • Debugging isn't supported yet
  • Some runtime diagnostics features aren't fully functional yet

This is an experimental feature and not intended for production use yet.

If you find that CoreCLR doesn't work, you can keep using Mono by adding this to your project file:

<PropertyGroup>
    <UseMonoRuntime>true</UseMonoRuntime>
</PropertyGroup>

What's Changed

Read more

Contributors

dalexsoto, rolfbjarne, and 6 other contributors
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.NET 10 - Xcode 26.5 support (26.5.10284)

.NET 10 - Xcode 26.5 support (26.5.10284)

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@dalexsoto dalexsoto released this 21 May 00:33
dotnet-10.0.1xx-xcode26.5-10284
70ea0c5
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Note

  • Xcode 26.5 is required with this release. Xcode 26.5 requires macOS 26.2+ (Tahoe).

This is a servicing release to the previous .NET 10 release.

These are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

This release consists of the following versions:

Installation

You can use workload set version 10.0.300.3 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 10.0.300 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 10.0.300 before proceeding.

dotnet workload install <workload id(s)> --version 10.0.300.3

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 10.0.300.3

You can use dotnet workload --info to validate the workload versions installed in your system.

Full release notes: https://github.com/dotnet/macios/wiki/.NET-10-release-notes

What's Changed

Full Changelog: dotnet-10.0.1xx-xcode26.5-10280...dotnet-10.0.1xx-xcode26.5-10284

Contributors

dalexsoto, rolfbjarne, and dotnet-maestro
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.NET 9 - Xcode 26.5 support (26.5.9002)

.NET 9 - Xcode 26.5 support (26.5.9002)

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@dalexsoto dalexsoto released this 21 May 00:32
dotnet-9.0.1xx-xcode26.5.9002
7075bb3
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Learn about vigilant mode.

Note

  • Xcode 26.5 is required with this release. Xcode 26.5 requires macOS 26.2+ (Tahoe).
  • This release adds Xcode 26.5 build support, no new APIs have been added.

This is a servicing release to the previous .NET 9 release.

Note: these are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

Versions

This release consists of the following versions:

Installation

You can use workload set version 9.0.314.3 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 9.0.314 before issuing the dotnet workload install command below. You can
validate your installed dotnet version using dotnet --version do make sure it shows 9.0.314 or greater before proceeding.

dotnet workload install <workload id(s)> --version 9.0.314.3

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 9.0.314.3

You can use dotnet workload --info to validate the workload versions installed in your system.

What's Changed

Full Changelog: dotnet-9.0.1xx-xcode26.5.9001...dotnet-9.0.1xx-xcode26.5.9002

Contributors

dotnet-maestro
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.NET 9 - Xcode 26.5 support (26.5.9001)

.NET 9 - Xcode 26.5 support (26.5.9001)

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@dalexsoto dalexsoto released this 18 May 21:31
dotnet-9.0.1xx-xcode26.5.9001
1e1deb8
This commit was created on GitHub.com and signed with GitHub’s verified signature.
GPG key ID: B5690EEEBB952194
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Learn about vigilant mode.

Note

  • Xcode 26.5 is required with this release. Xcode 26.5 requires macOS 26.2+ (Tahoe).
  • This release adds Xcode 26.5 build support, no new APIs have been added.

This is a servicing release to the previous .NET 9 release.

Note: these are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

Versions

This release consists of the following versions:

Installation

You can use workload set version 9.0.314.2 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 9.0.314 before issuing the dotnet workload install command below. You can
validate your installed dotnet version using dotnet --version do make sure it shows 9.0.314 or greater before proceeding.

dotnet workload install <workload id(s)> --version 9.0.314.2

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 9.0.314.2

You can use dotnet workload --info to validate the workload versions installed in your system.

What's Changed

Full Changelog: dotnet-9.0.1xx-xcode26.4-9015...dotnet-9.0.1xx-xcode26.5.9001

Contributors

dalexsoto, rolfbjarne, and dotnet-maestro
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.NET 10 - Xcode 26.5 support (26.5.10280)

.NET 10 - Xcode 26.5 support (26.5.10280)

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@dalexsoto dalexsoto released this 18 May 21:36
dotnet-10.0.1xx-xcode26.5-10280
429e6c1
This commit was created on GitHub.com and signed with GitHub’s verified signature.
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Learn about vigilant mode.

Note

  • Xcode 26.5 is required with this release. Xcode 26.5 requires macOS 26.2+ (Tahoe).

These are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

This release consists of the following versions:

Installation

You can use workload set version 10.0.300.2 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 10.0.300 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 10.0.300 before proceeding.

dotnet workload install <workload id(s)> --version 10.0.300.2

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 10.0.300.2

You can use dotnet workload --info to validate the workload versions installed in your system.

Full release notes: https://github.com/dotnet/macios/wiki/.NET-10-release-notes

What's Changed

  • [src] Fix a few nullablity issues in a few places. by @rolfbjarne in #25043
  • [main] Update dependencies from dotnet/xharness by @dotnet-maestro[bot] in #25048
  • [CoreFoundation] Fix typo in native symbol name by @rolfbjarne in #25052
  • [main] Bump dependency/support for .NET 9 Xcode 26.4 packages. by @dalexsoto in #25055
  • [CryptoTokenKit] Update bindings all the way to Xcode 26.4 by @dalexsoto in #25025
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when optimizing generated code. by @rolfbjarne in #24979
  • [bgen] Enable nullability everywhere. by @rolfbjarne in #25023
  • [dotnet] Use the target framework version to compute the path to the task assembly. by @rolfbjarne in #25060
  • [skills] More updates to macios-binding-creator by @dalexsoto in #25064
  • [ImageCaptureCore] Bind new APIs and fix existing bindings up to Xcode 26.4 by @dalexsoto in #25028
  • [xcode26.5] Initial bump PR for Xcode 26.5 Beta 1 by @dalexsoto in #25071
  • [PdfKit] Implement manual bindings for PdfViewAnnotationHitEventArgs.AnnotationHit. by @rolfbjarne in #25068
  • Fix xharness HTML failure summaries by @rolfbjarne in #25092
  • [CoreMidi] kMIDIDriverPropertyUsesSerial is only available on macOS. by @rolfbjarne in #25095
  • [Foundation] Throws a specific exception in NSUrlSessionHandler when a certificate is needed but not provided. Fixes #24532. by @rolfbjarne in #24544
  • [Photos] Update bindings up to Xcode 26.5 Beta 1 by @dalexsoto in #25101
  • [StoreKit] Update bindings up to Xcode 26.5 Beta 1 by @dalexsoto in #25102
  • [CoreServices] Add deprecated attributes to FSEventStream RunLoop P/Invokes and fix UnscheduleFromRunLoop bug by @dalexsoto in #25103
  • Bump peterjgrainger/action-create-branch from 3.0.0 to 4.0.0 by @dependabot[bot] in #25097
  • [msbuild] Fix Content/BundleResource with PublishFolderType not bundled in multi-RID builds. Fixes #25053. by @rolfbjarne in #25065
  • Remove duplicate @ prefix from issueAuthor in GitOps by @akoeplinger in #25100
  • [introspection] Enable nullability. by @rolfbjarne in #25110
  • [MediaSetup] Add Mac Catalyst support by @dalexsoto in #25118
  • [CoreMotion] Clean up xtro files by @dalexsoto in #25116
  • [iTunesLibrary] Clean up xtro files by @dalexsoto in #25117
  • [ObjCRuntime] Add a Class.GetClassName to avoid code duplication. by @rolfbjarne in #25114
  • [dotnet] Don't remove the 'LaunchProfiles' capability for macOS projects. by @rolfbjarne in #25113
  • [xcode26.5] Merge main into xcode26.5 by @dalexsoto in #25127
  • [LocalAuthenticationEmbeddedUI] Update bindings and xtro by @dalexsoto in #25119
  • [main] Update dependencies from dotnet/macios by @dotnet-maestro[bot] in #25138
  • [SafetyKit] Enable bindings in MacCatalyst by @dalexsoto in #25134
  • [SystemConfiguration] Cleanup xtro files by @dalexsoto in #25132
  • [PrintCore] Update bindings and clear xtro by @dalexsoto in #25128
  • [SecurityUI] Clean up xtro by @dalexsoto in #25131
  • [dotnet-linker] Create an xml descriptor instead of manual marking when applying the [Preserve] attribute. by @rolfbjarne in #25109
  • [msbuild] Revamp finding a simulator to use when running an app in the simulator. Fixes #25112. by @rolfbjarne in #25129
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when marking static registrar methods. by @rolfbjarne in #25018
  • [main] Update dependencies from dotnet/dotnet by @dotnet-maestro[bot] in #25140
  • [main] Update dependencies from dotnet/xharness by @dotnet-maestro[bot] in #25153
  • CoreSpotlight: fix 'occured' -> 'occurred' in CSEnums XML doc comment by @SAY-5 in #25164
  • [xcode26.5] Merge main into xcode26.5 by @dalexsoto in #25159
  • [xharness] Enable nullability, and fix any errors. by @rolfbjarne in #25160
  • [AppKit] Fix the name of the userInfo 'Item' key in the WillAddItem/DidRemoveItem notifications. by @rolfbjarne in #25158
  • [src] Review xml docs for grammar. by @rolfbjarne in #25165
  • [xcode26.5] Bump to Xcode 26.5 Beta 2 by @dalexsoto in #25167
  • [main] Bump Xcode to 26.4.1 by @dalexsoto in #25169
  • [ObjCRuntime] Provide a way to remove an object from the object map. by @rolfbjarne in #25166
  • [src] Unify the xml docs for the Dispose(bool) method. by @rolfbjarne in #25175
  • [tools] Improve the create-makefile-fragment script a bit. by @rolfbjarne in #25174
  • [Foundation] Clean up pre-net10.0 code from NSUrlSessionHandler. by @rolfbjarne in #25177
  • [main] Update dependencies from dotnet/macios by @dotnet-maestro[bot] in #25199
  • [sharpie] Add docs on how to create a sharpie release. by @rolfbjarne in #25178
  • [docs] Minor updates from copilot review in the dotnet/docs-mobile repository. by @rolfbjarne in #25191
  • Add eng/Signing.props to sign cab files inside MSI workload packs by @rolfbjarne in #25192
  • Bump mlaunch to get startup hook fix. by @rolfbjarne in #25202
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking of NSObjects. by @rolfbjarne in #25146
  • [Foundation] Enable HTTP digest auth in NSUrlSessionHandler by @rolfbjarne in #25180
  • [docs] Fix typo 'embeddded' -> 'embedded'. by @rolfbjarne in #25205
  • [devops] Disable implicit CI triggers on xamarin-macios-pr pipeline by @rolfbjarne in #25211
  • [devops] Add a timeout to the 'Publish to Artifact Services Drop' step. by @rolfbjarne in #25210
  • Add macios-reviewer skill for PR code review by @rolfbjarne in #25206
  • [Foundation] Improve potential reentrancy problems in NSUrlSessionHandler. by @rolfbjarne in #25183
  • [msbuild] Copy some ILLink output back to Windows when building remotely. by @rolfbjarne in #25235
  • [msbuild] Add a condition to make sure empty item groups aren't processed. by @rolfbjarne in ...
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Contributors

dalexsoto, rolfbjarne, and 7 other contributors
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.NET 11.0.1xx Preview 4 (11514)

.NET 11.0.1xx Preview 4 (11514) Pre-release
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@rolfbjarne rolfbjarne released this 12 May 21:17
dotnet-11.0.1xx-preview4-11514
cbe4263
This commit was created on GitHub.com and signed with GitHub’s verified signature.
GPG key ID: B5690EEEBB952194
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Learn about vigilant mode.

We're excited to announce our fourth preview release for .NET 11!

Note

  • Xcode 26.4 is required with this release. Xcode 26.4 requires macOS 26.2+.

These are the base SDKs that add support for the platforms in question. For MAUI (which is built on top of our SDKs), visit: https://learn.microsoft.com/dotnet/maui/.

This release consists of the following versions:

Full release notes: .NET 11 release notes
Known issues: Known issues in .NET 11

Installation

You can use workload set version 11.0.100-preview.4.26261.2 in order to install these versions of the SDKs,
please make sure to be using the fourth preview of the .NET SDK 11.0.100 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 11.0.100 or greater before proceeding.

dotnet workload install <workload id(s)> --version 11.0.100-preview.4.26261.2

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 11.0.100-preview.4.26261.2

You can use dotnet workload --info to validate the workload versions installed in your system.

New features

(Experimental) CoreCLR

We've added support for using CoreCLR as the runtime for iOS, tvOS and Mac Catalyst, and this is now the default runtime.

Most apps will see:

  • Smaller app size.
  • Faster launch and runtime execution.
  • Faster builds, both for debug and release.

We're looking for testers to ensure everything works as expected - using CoreCLR should be a drop-in replacement (it's been the runtime on macOS since .NET 6)

To enable, add this to your project file:

<!-- Use CoreCLR on iOS -->
<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">
    <UseMonoRuntime>false</UseMonoRuntime>
</PropertyGroup>

<!-- Use CoreCLR on tvOS -->
<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tvos'">
    <UseMonoRuntime>false</UseMonoRuntime>
</PropertyGroup>

<!-- Use CoreCLR on Mac Catalyst -->
<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">
    <UseMonoRuntime>false</UseMonoRuntime>
</PropertyGroup>

Please try this in your applications and report any issues, either if something doesn't work, or if app size or runtime performance is worse.

Known issues (these will be fixed in a future preview):

  • Debugging isn't supported yet
  • Some runtime diagnostics features aren't fully functional yet

This is an experimental feature and not intended for production use yet.

If you find that CoreCLR doesn't work, you can keep using Mono by adding this to your project file:

<PropertyGroup>
    <UseMonoRuntime>true</UseMonoRuntime>
</PropertyGroup>

What's Changed

  • [Accessibility] Update bindings to Xcode 26.4 Beta 3 by @dalexsoto in #24877
  • [apidiff] Update reference/stable versions to latest .NET 10 / Xcode 26.3 by @dalexsoto in #25157
  • [AppKit] Fix the name of the userInfo 'Item' key in the WillAddItem/DidRemoveItem notifications. by @rolfbjarne in #25158
  • [AuthenticationServices] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24993
  • [AutomaticAssessmentConfiguration] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24998
  • [AVFoundation] Updated bindings to Xcode 26.4 RC by @dalexsoto in #24933
  • [AVKit] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24945
  • [BackgroundAssets] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24940
  • [bgen] Enable nullability everywhere. by @rolfbjarne in #25023
  • [BrowserKit] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24939
  • [CarPlay] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24961
  • [ClassKit] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24946
  • [copilot] Tell copilot to not report potential compiler errors. by @rolfbjarne in #25038
  • [CoreData] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24951
  • [CoreFoundation] Fix typo in native symbol name by @rolfbjarne in #25052
  • [CoreMidi] kMIDIDriverPropertyUsesSerial is only available on macOS. by @rolfbjarne in #25095
  • [CoreNFC] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24958
  • [CoreTelephony] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24959
  • [CoreText] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24960
  • [CoreWlan] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24995
  • [CryptoTokenKit] Update bindings all the way to Xcode 26.4 by @dalexsoto in #25025
  • [docs] Fix typo 'embeddded' -> 'embedded'. by @rolfbjarne in #25205
  • [docs] Minor updates from copilot review in the dotnet/docs-mobile repository. by @rolfbjarne in #25191
  • [dotnet-linker] Create an xml descriptor instead of manual marking when applying the [Preserve] attribute. by @rolfbjarne in #25109
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking in MarkIProtocolHandler. by @rolfbjarne in #24931
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking of NSObjects. by @rolfbjarne in #25146
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when marking static registrar methods. by @rolfbjarne in #25018
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when optimizing generated code. by @rolfbjarne in #24979
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when preserving block code. by @rolfbjarne in #24936
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when preserving smart enum methods. by @rolfbjarne in #24934
  • [dotnet] Add net10.0 msbuild tool DLLs to SignList.xml by @dalexsoto in #25006
  • [dotnet] Don't remove the 'LaunchProfiles' capability for macOS projects. by @rolfbjarne in #25113
  • [dotnet] Make 'dotnet watch' work. by @rolfbjarne in #24922
  • [dotnet] Quote the path to our TrimAttributes.LinkDescription.xml file. Fixes #24964. by @rolfbjarne in #24994
  • [dotnet] Use the target framework version to compute the path to the task assembly. by @rolfbjarne in #25060
  • [Foundation] Add KeepHeadersAfterDecompression app context switch to NSUrlSessionHandler by @rolfbjarne in #24957
  • [Foundation] Clean up pre-net10.0 code from NSUrlSessionHandler. by @rolfbjarne in #25177
  • [Foundation] Enable HTTP digest auth in NSUrlSessionHandler by @rolfbjarne in #25180
  • [Foundation] Improve nullability in NSArray.FromArrayOfArray. by @rolfbjarne in #24919
  • [Foundation] Improve nullability in NSArray.ToArray. by @rolfbjarne in #24974
  • [Foundation] Improve potential reentrancy problems in NSUrlSessionHandler. by @rolfbjarne in #25183
  • [Foundation] Remove Content-Encoding and Content-Length headers for auto-decompressed responses in NSUrlSessionHandler. Fixes #23958. by @rolfbjarne in #24924
  • [Foundation] Throws a specific exception in NSUrlSessionHandler when a certificate is needed but not provided. Fixes #24532. by @rolfbjarne i...
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Contributors

dalexsoto, rolfbjarne, and 4 other contributors
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.NET 10 - Xcode 26.4 support (26.4.10259)

.NET 10 - Xcode 26.4 support (26.4.10259)

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@rolfbjarne rolfbjarne released this 05 May 02:16
dotnet-10.0.1xx-xcode26.4-10259
644ec02
This commit was created on GitHub.com and signed with GitHub’s verified signature.
GPG key ID: B5690EEEBB952194
Verified
Learn about vigilant mode.

Note

  • Xcode 26.4 is required with this release. Xcode 26.4 requires macOS 26.2+ (Tahoe).

These are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

This release consists of the following versions:

Installation

You can use workload set version 10.0.203.1 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 10.0.203 before issuing the dotnet workload install command below. You can validate your installed dotnet version using dotnet --version do make sure it shows 10.0.203 before proceeding.

dotnet workload install <workload id(s)> --version 10.0.203.1

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 10.0.203.1

You can use dotnet workload --info to validate the workload versions installed in your system.

Full release notes: https://github.com/dotnet/macios/wiki/.NET-10-release-notes

What's Changed

  • [Accessibility] Update bindings to Xcode 26.4 Beta 3 by @dalexsoto in #24877
  • [AudioUnit] Simplify code and fix leak in AudioComponent.ComponentList. by @rolfbjarne in #24511
  • [AuthenticationServices] ASAuthorizationPlatformPublicKeyCredentialAssertionRequest is no longer gone. by @rolfbjarne in #24477
  • [AuthenticationServices] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24993
  • [AutomaticAssessmentConfiguration] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24998
  • [AVFoundation] Updated bindings to Xcode 26.4 RC by @dalexsoto in #24933
  • [AVKit] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24945
  • [BackgroundAssets] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24940
  • [bgen] Preserve all public methods supporting protocol methos as events. Fixes #24236. by @rolfbjarne in #24566
  • [BrowserKit] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24939
  • [CarPlay] Remove extraneous [Deprecated] on a CPGridButton ctor. Fixes #24491. by @rolfbjarne in #24497
  • [CarPlay] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24961
  • [ClassKit] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24946
  • [CoreData] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24951
  • [CoreFoundation/Foundation] Optimize getting a handle for NSNull and a null CFAllocator. by @rolfbjarne in #24775
  • [CoreNFC] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24958
  • [CoreTelephony] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24959
  • [CoreText] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24960
  • [CoreVideo] Expose CVPixelBufferAttributes.AllocateWithIOSurface|MetalCompatibility on macOS. Fixes #24584. by @rolfbjarne in #24590
  • [CoreWlan] Update bindings to Xcode 26.4 Release Candidate by @dalexsoto in #24995
  • [docs] Add a step to API docs publishing about flipping monikers from 'prelease' to 'live'. by @rolfbjarne in #24465
  • [docs] Move the docs about ReferenceNativeSymbol in the correct file. by @rolfbjarne in #24462
  • [docs] The MAUI wiki no longer needs updates when we release new versions. by @rolfbjarne in #24461
  • [docs] Update sample snippet with a suggestion from Copilot. by @rolfbjarne in #24466
  • [dotnet-linker] Mark field references in trimmed INativeObject/NSObject constructors. Fixes #24663. by @rolfbjarne in #24687
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking in MarkIProtocolHandler. by @rolfbjarne in #24931
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when preserving block code. by @rolfbjarne in #24936
  • [dotnet-linker] Use [DynamicDependency] attributes instead of manual marking when preserving smart enum methods. by @rolfbjarne in #24934
  • [dotnet] Add net10.0 msbuild tool DLLs to SignList.xml by @dalexsoto in #25006
  • [dotnet] Add support for @(RuntimeEnvironmentVariable). by @rolfbjarne in #24824
  • [dotnet] Disable any default 'PublishRuntimeIdentifier' values. by @rolfbjarne in #24562
  • [dotnet] Fix computing the app bundle location for 'dotnet run' for desktop apps. by @rolfbjarne in #24468
  • [dotnet] Fix handling binding frameworks embedded in binding assemblies remotely. by @rolfbjarne in #24518
  • [dotnet] Fix support for startup hooks. Fixes #24492. by @rolfbjarne in #24664
  • [dotnet] Make 'dotnet watch' work. by @rolfbjarne in #24922
  • [dotnet] Quote the path to our TrimAttributes.LinkDescription.xml file. Fixes #24964. by @rolfbjarne in #24994
  • [Foundation] Add [NullAllowed] to NSBundle members. Fixes #24803. by @rolfbjarne in #24805
  • [Foundation] Add helper methods to NSArray to create managed arrays of strongly typed dictionaries. by @rolfbjarne in #24759
  • [Foundation] Add KeepHeadersAfterDecompression app context switch to NSUrlSessionHandler by @rolfbjarne in #24957
  • [Foundation] Fix nullability in NSConnection. by @rolfbjarne in #24438
  • [Foundation] Fix nullability in NSDictionary. by @rolfbjarne in #24478
  • [Foundation] Fix nullability in NSDictionary<TKey,TValue>. by @rolfbjarne in #24457
  • [Foundation] Fix nullability in NSKeyedArchiver. by @rolfbjarne in #24436
  • [Foundation] Fix nullability in NSLayoutConstraint. by @rolfbjarne in #24434
  • [Foundation] Fix nullability in NSLocale. by @rolfbjarne in #24433
  • [Foundation] Fix nullability in NSMutableAttributedString. by @rolfbjarne in #24431
  • [Foundation] Fix nullability in NSMutableDictionary. by @rolfbjarne in #24428
  • [Foundation] Fix nullability in NSMutableDictionary<TKey, TValue>. by @rolfbjarne in #24458
  • [Foundation] Fix nullability in NSMutableSet. by @rolfbjarne in #24419
  • [Foundation] Fix nullability in NSMutableSet. by @rolfbjarne in #24422
  • [Foundation] Fix nullability in NSObject. by @rolfbjarne in #24481
  • [Foundation] Improve NSArray.ArrayFromHandle significantly. by @rolfbjarne in #24808
  • [Foundation] Improve NSArray.From[NS]Objects slightly. by @rolfbjarne in #24569
  • [Foundation] Improve NSArray.FromIntPtrs slightly. by @rolfbjarne in #24501
  • [Foundation] Improve NSArray.FromNativeObjects slightly. by @rolfbjarne in #24509
  • [Foundation] Improve NSArray.FromStrings a bit. by @rolfbjarne in #24583
  • [Foundation] Improve NSArray.StringArrayFromHandle a bit. by @rolfbjarne in #24640
  • [Foundation] Improve nullability in NSArray.ArrayFromHandleFunc. by @rolfbjarne in #24900
  • [Foundation] Improve nullability in NSArray.EnumsFromHandle. by @rolfbjarne in #24861
  • [Foundation] Improve nullability in NSArray.FromArray. by @rolfbjarne in #24873
  • [Foundation] Improve nullability in NSArray.FromArrayNative. by @rolfbjarne in #24884
  • [Foundation] Improve nul...
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Contributors

dalexsoto, rolfbjarne, and 3 other contributors
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.NET 9 - Xcode 26.4 support (26.4.9015)

.NET 9 - Xcode 26.4 support (26.4.9015)

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@rolfbjarne rolfbjarne released this 05 May 02:11
dotnet-9.0.1xx-xcode26.4-9015
ac80159
This commit was created on GitHub.com and signed with GitHub’s verified signature.
GPG key ID: B5690EEEBB952194
Verified
Learn about vigilant mode.

Note

  • Xcode 26.4 is required with this release. Xcode 26.4 requires macOS 26.2+ (Tahoe).
  • This release adds Xcode 26.4 build support, no new APIs have been added.

This is a servicing release to the previous .NET 9 release.

Note: these are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

Versions

This release consists of the following versions:

Installation

You can use workload set version 9.0.313.1 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 9.0.313 before issuing the dotnet workload install command below. You can
validate your installed dotnet version using dotnet --version do make sure it shows 9.0.313 or greater before proceeding.

dotnet workload install <workload id(s)> --version 9.0.313.1

Available workload ids

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 9.0.313.1

You can use dotnet workload --info to validate the workload versions installed in your system.

What's Changed

  • [release/9.0.1xx] Update build to use Xcode 26.4 no new API bindings by @dalexsoto in #25010

Full Changelog: dotnet-9.0.1xx-xcode26.2.9008...dotnet-9.0.1xx-xcode26.4-9015

Contributors

dalexsoto
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