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
JIT: Arm `IsContainableImmed` doesnt handle shifts
area-CodeGen-coreclrhelp wantedoptimization

dotnet/runtime #125,578 opened Mar 15, 2026 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
Jit: Missing folding some compares in optimizebools
area-CodeGen-coreclrhelp wantedtenet-performance

dotnet/runtime #123,291 opened Jan 16, 2026 · 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
`(x >> N) << N` should reduce to a mask
area-CodeGen-coreclrhelp wantedtenet-performance

dotnet/runtime #118,643 opened Aug 12, 2025 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments1 reaction0 assignees
Open
TakeLast Performance Improvement suggestion
area-System.Linqhelp wantedtenet-performance

dotnet/runtime #118,312 opened Aug 3, 2025 · 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
[Android] Implement post-build symbol stripping
area-Infrastructuregood first issueos-android

dotnet/runtime #115,717 opened May 19, 2025 · C# · 17,886 stars

Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
3 comments0 reactions1 assignee