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

dotnet hacktoberfest help-wanted
100 Open Issues Need Help Last updated: Jul 1, 2026

Open Issues Need Help

View All on GitHub
arch-arm64 os-windows help wanted blocking-clean-ci-optional needs-further-triage in-pr area-System.Diagnostics.PerformanceCounter Known Build Error

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Text.Json help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Runtime.CompilerServices help wanted in-pr

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Numerics help wanted in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Reflection.Emit help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Console help wanted in-pr

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Console os-windows help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
bug area-System.Console os-windows help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Collections help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
documentation area-Meta help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Net.Security good first issue help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Linq help wanted JitStress blocking-clean-ci-optional

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Numerics.Tensors test-bug help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-approved area-System.Runtime.Intrinsics help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-Infrastructure-libraries help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Runtime help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
bug help wanted area-Extensions-Caching in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Net good first issue os-ios

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

C#
#dotnet#hacktoberfest#help-wanted
documentation area-System.Xml help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
RISC-V support 19 days ago
help wanted area-VM-meta-mono arch-riscv

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.IO tenet-performance help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
good first issue help wanted area-CodeGen-coreclr optimization

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Numerics help wanted Cost:M in-pr reduce-unsafe

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

C#
#dotnet#hacktoberfest#help-wanted
enhancement area-System.Net.Security help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
enhancement area-System.Net.Security help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Net.Security test-enhancement help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Net.Security disabled-test help wanted os-android

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

C#
#dotnet#hacktoberfest#help-wanted
bug area-System.Reflection.Emit breaking-change help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
help wanted area-Tools-ILVerification in-pr

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
help wanted area-System.IO.Ports

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Numerics help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Runtime tenet-performance help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Linq help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Runtime.CompilerServices help wanted code-analyzer

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.DirectoryServices help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Configuration help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Linq help wanted JitStress blocking-clean-ci-optional

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

C#
#dotnet#hacktoberfest#help-wanted
tenet-reliability help wanted area-System.Diagnostics.Metric

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Numerics help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Numerics help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Numerics help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Runtime tenet-performance help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Runtime help wanted code-analyzer

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Threading.Channels help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Threading.Channels help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
help wanted area-System.IO.Ports

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-Meta help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
documentation area-Meta help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
api-suggestion area-System.Collections help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Collections tenet-performance help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Buffers test-bug help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
bug area-Microsoft.Win32 help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Drawing help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Net.Http help wanted

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.IO.Pipelines help wanted

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

C#
#dotnet#hacktoberfest#help-wanted
bug help wanted area-Extensions-Caching

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

C#
#dotnet#hacktoberfest#help-wanted
test-bug help wanted area-Extensions-Hosting Known Build Error

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Threading help wanted Priority:2

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

C#
#dotnet#hacktoberfest#help-wanted
disabled-test help wanted area-Extensions-Caching in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
help wanted area-Infrastructure

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.IO good first issue help wanted in-pr

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted
help wanted area-CodeGen-coreclr

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

C#
#dotnet#hacktoberfest#help-wanted
bug help wanted area-Extensions-Configuration in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
enhancement area-Serialization help wanted in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
bug arch-arm32 arch-arm64 area-System.Numerics help wanted Priority:3 in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
Optimize Half.CompareTo about 2 months ago
area-System.Runtime tenet-performance help wanted in-pr

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

C#
#dotnet#hacktoberfest#help-wanted
area-System.Diagnostics.Process os-mac-os-x help wanted needs-further-triage

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

C#
#dotnet#hacktoberfest#help-wanted
good first issue os-android area-Infrastructure Priority:0 in-pr

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

C#
#dotnet#hacktoberfest#help-wanted

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

C#
#dotnet#hacktoberfest#help-wanted