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OpenSep 7, 2026
Due by November 9, 2027
•Last updated Previews, Release Candidates (RC), and General Availability (GA) releases for .NET 12
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[wasm] R2R: 32-byte struct passed by value is corrupted (fields shifted by one word)
arch-wasmWebAssembly architectureWebAssembly architecturearea-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIStatus: Open.#131639 In dotnet/runtime;ML-DSA support on CryptoKit
os-iosApple iOSApple iOSos-mac-os-xmacOS aka OSXmacOS aka OSXos-tvosApple tvOSApple tvOSStatus: Open.#120550 In dotnet/runtime;- Status: Open.
Replace deprecated SecTrustGetCertificateAtIndex API in System.Security.Cryptography.Native.Apple
os-iosApple iOSApple iOSos-mac-os-xmacOS aka OSXmacOS aka OSXos-maccatalystMacCatalyst OSMacCatalyst OSos-tvosApple tvOSApple tvOSStatus: Open.#101349 In dotnet/runtime;ML-KEM: CryptoKit support
blockedIssue/PR is blocked on something - see commentsIssue/PR is blocked on something - see commentsStatus: Open.Add back ILLink usage of dependency analysis framework
area-Tools-ILLink.NET linker development as well as trimming analyzers.NET linker development as well as trimming analyzersStatus: Open.#105159 In dotnet/runtime;[ci-scan] Test failure: InvokeWithRefLikeArgs.MethodTakesRefToRefStructAsArg_ThrowsNSE on iossimulator
Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tabos-iosApple iOSApple iOSStatus: Open.#129358 In dotnet/runtime;SIGSEGV in
mono_interp_exec_methodon iOS withUseInterpreter=true(.NET 10)os-iosApple iOSApple iOSStatus: Open.#126448 In dotnet/runtime;Add tests for DataContractSerializer serializing System.Globalization types
in-prThere is an active PR which will close this issue when it is mergedThere is an active PR which will close this issue when it is mergedtest-enhancementImprovements of test source codeImprovements of test source codeStatus: Open.#24358 In dotnet/runtime;Add tests for DataContractSerializer serializing collection types
in-prThere is an active PR which will close this issue when it is mergedThere is an active PR which will close this issue when it is mergedtest-enhancementImprovements of test source codeImprovements of test source codeStatus: Open.#24355 In dotnet/runtime;Improve code coverage for System.Xml.Serialization
test-enhancementImprovements of test source codeImprovements of test source codeStatus: Open.#1415 In dotnet/runtime;- Status: Open.#64608 In dotnet/runtime;
- Status: Open.#1413 In dotnet/runtime;
- Status: Open.#56589 In dotnet/runtime;
- Status: Open.#74310 In dotnet/runtime;
- Status: Open.#630 In dotnet/runtime;
- Status: Open.#58421 In dotnet/runtime;
- Status: Open.#50820 In dotnet/runtime;
- Status: Open.#107288 In dotnet/runtime;
- Status: Open.#83765 In dotnet/runtime;
- Status: Open.#69435 In dotnet/runtime;
- Status: Open.#36921 In dotnet/runtime;
Add API to provide existing DI scope to HttpClientFactory
api-suggestionEarly API idea and discussion, it is NOT ready for implementationEarly API idea and discussion, it is NOT ready for implementationStatus: Open.#47091 In dotnet/runtime;Missing Socket APIs mega-issue
enhancementProduct code improvement that does NOT require public API changes/additionsProduct code improvement that does NOT require public API changes/additionshelp wanted[up-for-grabs] Good issue for external contributors[up-for-grabs] Good issue for external contributorsStatus: Open.#43935 In dotnet/runtime;[API Proposal]: ValueTask-based Socket.ConnectAsync overloads for Happy Eyeballs
api-suggestionEarly API idea and discussion, it is NOT ready for implementationEarly API idea and discussion, it is NOT ready for implementationStatus: Open.#117548 In dotnet/runtime;