Who contributed to .NET on June 10, 2026?

3 developers shipped this update, including AbhitejJohn, JanKrivanek, and dotnet-maestro[bot].

What were the notable .NET updates?

.NET 8.0.28, .NET 9.0.17, and .NET 10.0.9.

@dotnet

The .NET runtime, ASP.NET, and the C# tooling

github ↗

Pick a date

Topics: .NET Full archive →

The Wire · Showcase

.NET TEMPLATING SHIPS ACROSS THREE VERSIONS AS SKILLS PLUGINS FACE CODEX COMPLIANCE OVERHAUL

By RepoJournal · Filed 06:04 UTC on June 10, 2026 · About .NET

3 people shipped this

AbhitejJohn @AbhitejJohn 2 cited

JanKrivanek @JanKrivanek 1 cited

dotnet-maestro[bot] @dotnet-maestro[bot] 1 cited

The templating pipeline rolled out point releases for .NET 8, 9, and 10 while the skills team scrambled to fix critical plugin manifest gaps that broke Codex CLI installs.

.NET 8.0.28, 9.0.17, and 10.0.9 all shipped with dependency updates from dotnet/arcade [1][2][3], closing out the templating release cycle across three active support tracks. Meanwhile, the skills desk uncovered a structural problem: the dotnet-msbuild Codex plugin fails installation because its mcpServers configuration was embedded inline instead of externalized to a separate .mcp.json file as the Codex spec demands [4]. This wasn't an isolated oversight. All 14 plugin directories lacked .codex-plugin/plugin.json manifest entry points entirely, blocking Codex CLI plugin discovery even though marketplace listings worked fine [6]. The team also patched two runtime failures: Copilot PAT rotation broke in gh-aw v0.77.5 because the agent job only declared a direct dependency on 'activation' instead of the 'pre_activation' job where the token gets selected [5], and the devops-health dashboard workflow abandoned its pinned issue and created duplicates when GitHub's search indexing silently dropped it [7]. WinForms absorbed the latest codeflow updates from the VMR [8][9][10], and Docker image metadata continues flowing through versions [11].

Action items

→ Review and validate Codex plugin manifests across all 14 plugins before next marketplace push dotnet/skills [immediate]
→ Verify Copilot PAT rotation is wired correctly in your agent workflows if using gh-aw v0.77.5+ dotnet/skills [plan]
→ Pull .NET 8.0.28, 9.0.17, and 10.0.9 template updates before next template release cycle dotnet/templating [plan]

References

[1] .NET 8.0.28 ↗ dotnet/templating
[2] .NET 9.0.17 ↗ dotnet/templating
[3] .NET 10.0.9 ↗ dotnet/templating
[4] Fix dotnet-msbuild Codex plugin install by externalizing mcpServers ↗ dotnet/skills
[5] Fix Copilot PAT rotation for gh-aw v0.77.5 runtime ↗ dotnet/skills
[6] Add .codex-plugin/plugin.json manifests for Codex CLI plugin install ↗ dotnet/skills
[7] fix(devops-health): resilient dashboard issue discovery (#737) dotnet/skills
[8] [main] Source code updates from dotnet/dotnet ↗ dotnet/winforms
[9] [main] Source code updates from dotnet/dotnet (#14629) dotnet/winforms
[10] Update dependencies from build 318061 dotnet/winforms
[11] Merging Docker image info updates from build dotnet/versions

Quick answers

What shipped in .NET on June 10, 2026?: The templating pipeline rolled out point releases for .NET 8, 9, and 10 while the skills team scrambled to fix critical plugin manifest gaps that broke Codex CLI installs. In total, 16 commits, 5 pull requests, and 4 releases landed.
Who contributed to .NET on June 10, 2026?: 3 developers shipped this update, including AbhitejJohn, JanKrivanek, and dotnet-maestro[bot].
What were the notable .NET updates?: .NET 8.0.28, .NET 9.0.17, and .NET 10.0.9.

RUNTIME FIXES KERBEROS FALLBACK ON UNIX, APPHOST CONVERTS TO C

The managed SPNEGO implementation now falls back to NTLM when Kerberos credentials go missing on Linux, closing a critical auth gap that broke enterprise deployments [ref:1].

dotnet 120 shipped 1-min read

@dotnet 1 day ago

MACIOS DOCS OVERHAUL SPANS 31 TYPES, ASPNETCORE VALIDATION MOVES TO SOURCE GENERATION

Rolf Bjarne shipped 31 types with proper XML documentation across macios while aspnetcore refactors validation classes out of the public API entirely.

dotnet 25 shipped 1-min read

@dotnet 2 days ago

SQLCLIENT KILLS PLATFORM-SPECIFIC BUILDS, ASPNETCORE HARDENS SIGNALR

SqlClient unified its Windows and Unix code paths without restructuring the NuGet package, collapsing build complexity across the entire SNI layer.

dotnet 97 shipped 2-min read

@dotnet 3 days ago

COMPLEX NUMBERS NOW IEEE 754 COMPLIANT, SKILLS EVALS GO VALLY-ONLY, UNSAFE EVOLVES

Complex<T> just shipped conformance to C23 Annex G special values, dotnet/skills completed its migration to the Vally eval harness, and the language is tightening unsafe semantics ahead of C# 13.

dotnet 141 shipped 2-min read

Elsewhere on the wire

AI Agents about 9 hours ago

CLAUDE OPUS 5 LANDS ACROSS THE STACK

The newest Anthropic model is now live in langchain, Cline, and llama-index, with native support for extended reasoning and 1M context windows.

ai-agents 28 shipped 1-min read

Local LLMs about 9 hours ago

OLLAMA LANDS LAGUNA SUPPORT AND CRUSHES MEMORY LEAKS WHILE SGLANG HITS V0.5.16 WITH CONFIDENCE-DRIVEN SPECULATIVE DECODING

Ollama shipped three critical performance and reliability fixes for Metal residency and concurrent access patterns, while SGL-Lang released 0.5.16 with a new speculative algorithm hitting 383.7 tok/s on DeepSeek-V4.