Repository Issues

dotnet/runtime

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

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Stars
 (17,886 stars)
Forks
 (5,445 forks)
Indexed issues
 (385 indexed issues)
open beginner issues
 (368 open beginner issues)
Latest indexed
Jun 11, 2026
Last GitHub push
May 15, 2026
License
MIT License
Contributing guide
Contributing guide
Code of conduct
Code of conduct
Dominant language
C#
PR merge metrics
 (Avg merge 12d 11h) (661 merged PRs in 30d)
Beginner labels
help wantedgood first issue

Issues

368 open indexed issues

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Open
F# typeof comparison suboptimal codegen
area-CodeGen-coreclrhelp wanted

dotnet/runtime #82,394 opened Feb 20, 2023 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
13 comments1 reaction0 assignees
Open
Support recognizing `Blend` as commutative
area-CodeGen-coreclrhelp wanted

dotnet/runtime #82,365 opened Feb 19, 2023 · C# · 17,886 stars

Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
5 comments2 reactions2 assignees
Open
[JIT] Sub-optimal chained bool optimization
area-CodeGen-coreclrhelp wantedtenet-performance

dotnet/runtime #81,442 opened Jan 31, 2023 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments0 reactions0 assignees
Open
[JIT] Bool optimization case
area-CodeGen-coreclrhelp wanted

dotnet/runtime #80,966 opened Jan 21, 2023 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments1 reaction0 assignees
Open
[NativeAOT] Signalless Hijack
area-NativeAOT-coreclrhelp wanted

dotnet/runtime #78,724 opened Nov 22, 2022 · C# · 17,886 stars

Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
7 comments0 reactions1 assignee
Open
Analyzer for STAThread attribute applied to async Main
api-approvedarea-System.Threading.Taskscode-analyzerhelp wanted

dotnet/runtime #78,502 opened Nov 17, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments7 reactions0 assignees
Open
Improve logging of JitStressRegs flags in JitDump
area-CodeGen-coreclrhelp wanted

dotnet/runtime #78,474 opened Nov 16, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
Enable more style checking analyzers
area-Metahelp wanted

dotnet/runtime #78,414 opened Nov 15, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
17 comments0 reactions0 assignees
Open
Clean-up gtGetLclVarName and gtDispLclVar
area-CodeGen-coreclrhelp wanted

dotnet/runtime #77,741 opened Nov 1, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments0 reactions0 assignees
Open
X509Certificate2 Issue in MAUI Project on M1 Macbook
area-System.Securityhelp wantedos-maccatalyst

dotnet/runtime #77,611 opened Oct 28, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
7 comments1 reaction0 assignees
Open
Simplify JIT-EE interface modification
area-CodeGen-coreclrhelp wanted

dotnet/runtime #76,184 opened Sep 26, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments0 reactions0 assignees