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
 (354 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

354 open indexed issues

Open
JIT: Arm `IsContainableImmed` doesnt handle shifts
area-CodeGen-coreclrhelp wantedoptimization
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #125578 · Mar 15, 2026 · C# · 17,886 stars

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

dotnet / runtime · #123291 · Jan 16, 2026 · C# · 17,886 stars

4 comments0 reactions0 assignees
Open
`(x >> N) << N` should reduce to a mask
area-CodeGen-coreclrhelp wantedtenet-performance
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #118643 · Aug 12, 2025 · C# · 17,886 stars

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

dotnet / runtime · #118312 · Aug 3, 2025 · C# · 17,886 stars

3 comments0 reactions0 assignees
Open
[Android] Implement post-build symbol stripping
area-Infrastructuregood first issueos-android
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

dotnet / runtime · #115717 · May 19, 2025 · C# · 17,886 stars

3 comments0 reactions1 assignee
Open
HttpClientFactory doesn't clean up after itself
area-Extensions-HttpClientFactoryhelp wanted
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

dotnet / runtime · #113494 · Mar 13, 2025 · C# · 17,886 stars

15 comments4 reactions1 assignee