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

385 indexed issues

Open
JIT throughput: SimplerHashTable
JitThroughputarea-CodeGen-coreclrenhancementhelp wantedtenet-performance
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #7710 · Mar 23, 2017 · C# · 17,886 stars

5 comments1 reaction0 assignees
Open
Support TypeConverterAttribute on bound properties
area-Extensions-Configurationfeature-requesthelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #36545 · Mar 18, 2017 · C# · 17,886 stars

10 comments17 reactions0 assignees
Open
RyuJIT/x86: REGMASK_BITS should be 16 for x86, not 32
HackathonJitThroughputarch-x86area-CodeGen-coreclrenhancementgood first issuetenet-performance
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #7575 · Mar 8, 2017 · C# · 17,886 stars

10 comments0 reactions0 assignees
Open
SerialPort timeout tests are slow and flaky
area-System.IO.Portsdisabled-testhelp wantedtest-bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #20149 · Feb 8, 2017 · C# · 17,886 stars

15 comments0 reactions0 assignees
Open
Add relevant CHA inside Roslyn and RyuJIT
area-CodeGen-coreclrhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #7183 · Jan 2, 2017 · C# · 17,886 stars

8 comments1 reaction0 assignees
Open
Test Linq.Expression interpreted mode in CI
area-System.Linq.Expressionshelp wantedtest-bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #18802 · Sep 30, 2016 · C# · 17,886 stars

3 comments0 reactions0 assignees
Open
Perf Test Coverage: Port Xamarin benchmarks to xunit
Hackathonarea-CodeGen-coreclrenhancementgood first issuehelp wantedtenet-performance
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #6610 · Sep 7, 2016 · C# · 17,886 stars

2 comments0 reactions0 assignees
Open
Port xsd.exe to .NET Core
area-Serializationenhancementhelp wantedwishlist
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #1391 · May 18, 2016 · C# · 17,886 stars

46 comments79 reactions0 assignees
Open
Improve custom attribute decoding tests
area-System.Reflection.Metadatahelp wantedtest-enhancement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #16552 · Mar 1, 2016 · C# · 17,886 stars

2 comments0 reactions0 assignees
Open
Update BenchI and BenchF benchmarks to validate results
Hackathonarea-CodeGen-coreclrgood first issuehelp wantedin-prtest-bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #5049 · Feb 2, 2016 · C# · 17,886 stars

3 comments0 reactions0 assignees
Closed
dev10_865840 test failed
area-CodeGen-coreclrhelp wantedtest-bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #4856 · Dec 21, 2015 · C# · 17,886 stars

1 comment0 reactions0 assignees
Closed
Tests fail with System.BadImageFormatException
area-CodeGen-coreclrgood first issuehelp wantedin-prtest-bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #4852 · Dec 21, 2015 · C# · 17,886 stars

8 comments0 reactions0 assignees