Who contributed to .NET on August 5, 2026?

12 developers shipped this update, including DrewScoggins, Matous Kozak, LoopedBard3, dotnet-maestro, copilot-swe-agent, mthalman, jonathanpeppers, and Evangelink, and 4 more.

What were the notable .NET updates?

Take machine offline and notify when dpkg is corrupted during prereq install, Update BenchmarkDotNet to 0.16.0-nightly.20260801.595, and [Android] Add CoreCLR full R2R scenario run.

@dotnet

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The Wire · Showcase

HELIX MACHINE CORRUPTION DETECTION ROLLS OUT; RUNTIME MUTUAL AUTH TIGHTENS

By RepoJournal · Filed 07:01 UTC on August 5, 2026 · About .NET

12 people shipped this

dotnet-maestro @dotnet-maestro 5 cited

Evangelink @Evangelink 2 cited

DrewScoggins @DrewScoggins 1 cited

Matous Kozak @matouskozak 1 cited

LoopedBard3 @LoopedBard3 1 cited

copilot-swe-agent @copilot-swe-agent 1 cited

Tomas Weinfurt @wfurt 1 cited

mthalman @mthalman

jonathanpeppers @jonathanpeppers

dotnet-maestro[bot] @dotnet-maestro[bot]

Radek Zikmund @rzikm

premun @premun

Performance's new dpkg detection takes broken test machines offline automatically, while runtime enforces Negotiate mutual authentication and SDK extends binary log sessions across device builds.

Drew Scoggins' dpkg corruption handler [1] detects when apt/dpkg gets stuck mid-install and pulls the machine from Helix rotation instead of looping failures on a dead host, a hard-won operational win for the perf pipeline. In security posture, runtime now validates that mutual authentication actually succeeded when `RequireMutualAuthentication` is enabled [12], catching NTLM edge cases that SSPI misreports even on Windows. Separately, the SDK's binary log fix [11] unifies MSBuild sessions so `dotnet test -bl` writes a valid binlog instead of corrupt multi-build artifacts, with device-specific MAUI paths following behind [10]. Across the stack, BenchmarkDotNet bumped to nightly 595 [2], Android CoreCLR gained full R2R scenario runs on Pixel 8 and Galaxy A16 [3], and the `dotnet new install` command picked up a `--prerelease` flag to resolve latest prerelease versions without explicit version strings [9]. Codeflow updates continue from runtime, Roslyn, ASP.NET Core, Arcade, and source-build-assets [4] [5] [6] [7] [8].

Action items

→ If running Helix perf tests, watch logs for dpkg detection to confirm machines are being retired cleanly dotnet/performance [monitor]
→ Review NegotiateStream mutual auth requirements if your code calls RequireMutualAuthentication explicitly dotnet/runtime [plan]
→ Test `dotnet test -bl` on multi-TFM device projects to confirm binlog is now readable dotnet/sdk [plan]
→ Try `dotnet new install --prerelease` to pick up latest template prereleases dotnet/sdk [monitor]

References

[1] Take machine offline and notify when dpkg is corrupted during prereq install ↗ dotnet/performance
[2] Update BenchmarkDotNet to 0.16.0-nightly.20260801.595 ↗ dotnet/performance
[3] [Android] Add CoreCLR full R2R scenario run ↗ dotnet/performance
[4] [main] Source code updates from dotnet/runtime ↗ dotnet/dotnet
[5] [main] Source code updates from dotnet/roslyn ↗ dotnet/dotnet
[6] [main] Source code updates from dotnet/aspnetcore ↗ dotnet/dotnet
[7] [main] Source code updates from dotnet/arcade ↗ dotnet/dotnet
[8] [main] Source code updates from dotnet/source-build-assets ↗ dotnet/dotnet
[9] Add --prerelease flag to dotnet new install ↗ dotnet/sdk
[10] Extend the single `dotnet test -bl` build session to the device (MAUI) paths ↗ dotnet/sdk
[11] Fix corrupted `dotnet test -bl` binary logs by using a single MSBuild build session ↗ dotnet/sdk
[12] Enforce required Negotiate mutual authentication (#131588) dotnet/runtime

Quick answers

What shipped in .NET on August 5, 2026?: Performance's new dpkg detection takes broken test machines offline automatically, while runtime enforces Negotiate mutual authentication and SDK extends binary log sessions across device builds. In total, 67 commits and 66 pull requests landed.
Who contributed to .NET on August 5, 2026?: 12 developers shipped this update, including DrewScoggins, Matous Kozak, LoopedBard3, dotnet-maestro, copilot-swe-agent, mthalman, jonathanpeppers, and Evangelink, and 4 more.
What were the notable .NET updates?: Take machine offline and notify when dpkg is corrupted during prereq install, Update BenchmarkDotNet to 0.16.0-nightly.20260801.595, and [Android] Add CoreCLR full R2R scenario run.

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@dotnet Aug 4

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@dotnet Aug 3

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dotnet 8 shipped

@dotnet Aug 2

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dotnet 12 shipped

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