9.0.x

Issues

• WASM AOT fails with regex in .NET 9

  arch-wasmarea-Codegen-AOT-monoos-browser
  dotnet/runtime#109862 · Filter by author voroninp opened on Nov 15, 2024 · 9.0.x
  4

  

• Loading PFX without admin causes CryptographicException

  area-System.Securityregression-from-last-release
  dotnet/runtime#110217 · Filter by author timmac-qmc opened on Nov 27, 2024 · 9.0.x
  28

  

• .NET 9.0.1 Breaking Change in macOS native library resolution

  area-Interop-coreclrregression-from-last-release
  dotnet/runtime#112080 · Filter by author yaakov-h opened on Feb 3, 2025 · 9.0.x
  13

• Stock Blazor standalone app with AOT compilation enabled fails to load in up-to-date Chrome when the host OS is Linux

  arch-wasmarea-VM-meta-monoos-browser
  dotnet/runtime#110056 · Filter by author kmk-irc opened on Nov 21, 2024 · 9.0.x
  4

  

• regression net9.0 ServicePoint throws PNSE on browser

  area-System.Netos-browserregression-from-last-release
  dotnet/runtime#113174 · Filter by author lewing opened on Mar 5, 2025 · 9.0.x
  5

• MONO_WASM: jit_call code generation failed in Blazor WASM project

  arch-wasmarea-Codegen-Interpreter-monoos-browser
  dotnet/runtime#113657 · Filter by author Dona278 opened on Mar 18, 2025 · 9.0.x
  15

• [Android] App crashing with condition `xref_count == xref_index' not met

  area-GC-monoin-pr
  dotnet/runtime#106410 · Filter by author kklose23 opened on Aug 14, 2024 · 9.0.x
  66

  

• [net9] System.Private.CoreLib occurs InvalidOperationException and InvalidCastException

  area-System.Threadingregression-from-last-releaseruntime-mono
  dotnet/runtime#114262 · Filter by author sleushunou opened on Apr 4, 2025 · 9.0.x
  111

• Documenting .NET 9 APIs

  area-Metadocumentation
  dotnet/runtime#105974 · Filter by author carlossanlop opened on Aug 5, 2024 · 9.0.x
  10

• Regression in .NET 9-RC2: Case-insensitive handling of JsonNode

  area-System.Collectionsbreaking-changeneeds-breaking-change-doc-created
  dotnet/runtime#108790 · Filter by author bart-vmware opened on Oct 11, 2024 · 9.0.x
  6

• License metadata on windows runtime nuget packages is wrong

  area-Meta
  dotnet/runtime#108905 · Filter by author js6pak opened on Oct 15, 2024 · 9.0.x
  12

  

• JsonSerializer.Deserialize failing for some types in net9.0 that worked in net8.0.

  area-System.Text.Jsonbugregression-from-last-release
  dotnet/runtime#113268 · Filter by author chuckries opened on Mar 7, 2025 · 9.0.x
  4

• [Release Mode] Conditional check against byte.MaxValue unexpectedly ignored in .NET 9

  area-CodeGen-coreclr
  dotnet/runtime#118317 · Filter by author TheRangerr opened on Aug 3, 2025 · 9.0.x
  3

• Backport "stop testing with nodejs" to net9

  arch-wasmarea-VM-meta-mono
  dotnet/runtime#119092 · Filter by author ilonatommy opened on Aug 26, 2025 · 9.0.x
  1

• Update Node.js in Microsoft.NET.Runtime.Emscripten.3.1.56.Node.win-x64

  arch-wasmarea-Build-mono
  dotnet/runtime#123404 · Filter by author ZephyrZiggurat opened on Jan 20, 2026 · 9.0.x
  1