.NET 12

Issues

• Migrate away from ILLink custom steps

  Area: Trimming
  dotnet/android#10842 · Filter by author sbomer opened on Feb 19, 2026 · .NET 12
  3

  

• Remove empty finalizers from bridge objects

  Area: Performance
  dotnet/android#12303 · Filter by author BrzVlad opened on Aug 5, 2026 · .NET 12

• [.NET 10] change default value for PublishTrimmed

  Area: App+Library Buildenhancement
  Feature

  dotnet/android#9526 · Filter by author jonathanpeppers opened on Nov 19, 2024 · .NET 12
  

• Consider storing R2R images in a separate file

  Area: App Runtime
  dotnet/android#10802 · Filter by author jonathanpeppers opened on Feb 11, 2026 · .NET 12

• DOTNET_STARTUP_HOOKS from @(AndroidEnvironment) files is silently overwritten

  copilot
  Task

  dotnet/android#11186 · Filter by author simonrozsival opened on Apr 22, 2026 · .NET 12
  

• [CoreCLR] Enable cached ReadyToRun for Android Debug builds

  Area: CoreCLRenhancementneeds-triage
  dotnet/android#12117 · Filter by author kotlarmilos opened on Jul 15, 2026 · .NET 12
  4

  

• [TrimmableTypeMap] Revisit delayed registerNatives mechanism for Application and Instrumentation subclasses

  needs-triagetrimmable-type-map
  Task

  dotnet/android#11194 · Filter by author simonrozsival opened on Apr 23, 2026 · .NET 12

• NativeAOT TODO list

  Area: App+Library BuildArea: NativeAOT
  Epic

  dotnet/android#9784 · Filter by author jonathanpeppers opened on Feb 12, 2025 · .NET 12
  9

  

• NativeAOT on-device tests

  Area: App RuntimeArea: NativeAOTArea: Unit Tests
  Epic

  dotnet/android#10079 · Filter by author jonathanpeppers opened on Apr 25, 2025 · .NET 12
  

• [TrimmableTypeMap] Replace XDocument/XElement manifest generation with lower-allocation APIs

  copilottrimmable-type-map
  Task

  dotnet/android#11487 · Filter by author simonrozsival opened on May 25, 2026 · .NET 12
  

• [TrimmableTypeMap] Split Debug typemap generation into per-assembly MSBuild units

  copilottrimmable-type-map
  dotnet/android#11494 · Filter by author simonrozsival opened on May 25, 2026 · .NET 12
  1

• [TrimmableTypeMap] Add ComputeTypeMapDependencies pre-task for partial builds

  copilottrimmable-type-map
  dotnet/android#11492 · Filter by author simonrozsival opened on May 25, 2026 · .NET 12

• [TrimmableTypeMap] Parallelize assembly index construction during Java peer scanning

  copilottrimmable-type-map
  dotnet/android#11491 · Filter by author simonrozsival opened on May 25, 2026 · .NET 12

• [TrimmableTypeMap] Reconcile ACW map generation with per-assembly incrementality

  copilottrimmable-type-map
  dotnet/android#11495 · Filter by author simonrozsival opened on May 25, 2026 · .NET 12

• [TrimmableTypeMap] Performance considerations

  Area: CoreCLRArea: NativeAOTneeds-triagetrimmable-type-map
  Task

  dotnet/android#10795 · Filter by author simonrozsival opened on Feb 10, 2026 · .NET 12
  1

• [TrimmableTypeMap] Revisit use of unsafe in generated code and in libraries

  needs-triagetrimmable-type-map
  dotnet/android#11467 · Filter by author simonrozsival opened on May 23, 2026 · .NET 12
  

• NativeAOT Android app crashes with UnsatisfiedLinkError using 10.0.103

  Area: App Runtimeneed-attention
  dotnet/android#10822 · Filter by author charlesroddie opened on Feb 16, 2026 · .NET 12
  15

  

• NativeAOT - Build fails when building with Release config

  Area: App+Library Build
  dotnet/android#10218 · Filter by author emmauss opened on Jun 17, 2025 · .NET 12
  1

• [TrimmableTypeMap] Parallelize JCW source generation

  copilottrimmable-type-map
  dotnet/android#11490 · Filter by author simonrozsival opened on May 25, 2026 · .NET 12

• [CoreCLR] Build R2R images for SDK assemblies in Debug builds

  Area: CoreCLRneeds-triage
  Task

  dotnet/android#10760 · Filter by author simonrozsival opened on Feb 4, 2026 · .NET 12
  1

  

• [NativeAOT] Size regression detected on NativeAOT apps

  Area: Performanceneeds-triage
  dotnet/android#12184 · Filter by author matouskozak opened on Jul 20, 2026 · .NET 12
  2

• [TrimmableTypeMap] Replace fixed value-type container allowlist with scalable NativeAOT rooting

  needs-triagetrimmable-type-map
  dotnet/android#12169 · Filter by author simonrozsival opened on Jul 17, 2026 · .NET 12

• [TrimmableTypeMap] Support pre-generated framework typemaps in the aggregate + array-maps case (Debug NativeAOT)

  needs-triage
  dotnet/android#12128 · Filter by author simonrozsival opened on Jul 15, 2026 · .NET 12

• [CoreCLR] Remove DSO-cache hashes: decouple JNI preload and rework p/invoke fallback

  needs-triage
  dotnet/android#12039 · Filter by author simonrozsival opened on Jul 11, 2026 · .NET 12

• Improve fast deployment story when app is installed manually (missing assemblies → confusing crash)

  enhancementneeds-triage
  dotnet/android#12011 · Filter by author jonathanpeppers opened on Jul 7, 2026 · .NET 12
  1