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
Have more C++ intrinsics usage in runtime and JIT
area-CodeGen-coreclrhelp wanted

dotnet/runtime #69,401 opened May 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 comment1 reaction0 assignees
Open
NativeAOT: Run-time simd checking
area-CodeGen-coreclrhelp wanted

dotnet/runtime #68,110 opened Apr 16, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
7 comments0 reactions0 assignees
Open
Remove JIT-workaround for eliminating bound check
area-CodeGen-coreclrenhancementhelp wanted

dotnet/runtime #67,044 opened Mar 23, 2022 · C# · 17,886 stars

Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
12 comments3 reactions1 assignee
Open
Set process priority to use efficiency cores.
api-needs-workarea-System.Diagnostics.Processhelp wanted

dotnet/runtime #66,417 opened Feb 11, 2022 · 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
Improve File.Move performance
area-System.IOhelp wantedtenet-performance

dotnet/runtime #65,092 opened Feb 9, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
9 comments2 reactions0 assignees
Open
SerialPort on Linux fails to open for 250k baud
area-System.IO.Portshelp wanted

dotnet/runtime #64,507 opened Jan 30, 2022 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
6 comments1 reaction0 assignees
Open
Clean up AnyOS handling in build-test-job.yml
area-Infrastructurehelp wanted

dotnet/runtime #61,790 opened Nov 18, 2021 · 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