Repository Issues

dotnet/runtime

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

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 (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
Regex - Support Possessive Quantifiers
area-System.Text.RegularExpressionsenhancementhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #24381 · Dec 7, 2017 · C# · 17,886 stars

9 comments5 reactions0 assignees
Open
Go over ILVerify TODOs
Priority:3area-Tools-ILVerificationhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #37394 · Nov 19, 2017 · C# · 17,886 stars

1 comment0 reactions0 assignees
Open
Unit tests are failing if IPv6 is not configured
area-System.Nethelp wantedtest-bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #23798 · Oct 10, 2017 · C# · 17,886 stars

13 comments0 reactions0 assignees
Open
JIT: Optimize epilog generation
JitUntriagedarea-CodeGen-coreclrenhancementhelp wantedoptimizationtenet-performance
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #8883 · Sep 6, 2017 · C# · 17,886 stars

1 comment4 reactions0 assignees
Open
Jit x86: improve codegen for compares with long statics
arch-x86area-CodeGen-coreclrenhancementhelp wantedoptimizationtenet-performance
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #8555 · Jul 14, 2017 · C# · 17,886 stars

2 comments0 reactions0 assignees
Open
System.Reflection Performance Tests
area-System.Reflectionhelp wantedtenet-performancetest-enhancement
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / runtime · #21268 · Apr 21, 2017 · C# · 17,886 stars

2 comments0 reactions0 assignees
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