Who contributed to .NET on August 18, 2026?

9 developers shipped this update, including copilot-swe-agent, Copilot, Viktor Hofer, OvesN, dotnet-maestro, jonpryor, jonathanpeppers, and vs-mobiletools-engineering-service2, and 1 more.

What were the notable .NET updates?

Make telemetry initialization and disposal best-effort so it can never fail a build, Make telemetry initialization and disposal best-effort so it can never fail a build (#14554), and [Mono.Android] Bind API-37.1.

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The Wire · Showcase

MSBuild's telemetry failure can kill your build

By RepoJournal · Filed 07:00 UTC on August 18, 2026 · About .NET

9 people shipped this

jonathanpeppers @jonathanpeppers 2 cited

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

Copilot @Copilot 1 cited

OvesN @OvesN 1 cited

jonpryor @jonpryor 1 cited

PureWeen @PureWeen 1 cited

Viktor Hofer @ViktorHofer

dotnet-maestro @dotnet-maestro

vs-mobiletools-engineering-service2 @vs-mobiletools-engineering-service2

A NullReferenceException in MSBuild's telemetry disposal is silently taking down .NET Framework builds.

MSBuild 18.8.2 on .NET Framework is failing builds with MSB1025 when a NullReferenceException escapes VsTelemetryInitializer.Dispose(), because the telemetry manager's filtered catch wasn't matching the NRE [1]. The fix makes telemetry init and disposal best-effort so it can never fail a build [2]. Meanwhile, the Android toolchain is moving fast: API-37.1 binding is in for Android 17 QPR2 [3], and a lock-free JNI member lookup optimization swaps monitor locks for ConcurrentDictionary, cutting overhead on every generated binding invocation [4]. Over in MAUI, the release-readiness skill gets deterministic, copy-ready Preview and servicing handoff generation [5]. And MSBuild is also promoting MSBuildTask0006-MSBuildTask0008 from Info to Warning, so they'll show up in CLI builds and Visual Studio without extra config [6]. The Android team also stabilized define constant ordering to keep compile dependency hashes consistent [7]. With 24 commits and 25 PRs across the stack, the telemetry fix is the one to take first.

Action items

→ Apply the MSBuild telemetry fix to 18.8.2 to prevent MSB1025 failures dotnet/msbuild [immediate]
→ Monitor the JNI lock-free lookup for performance gains in your Android bindings dotnet/android [plan]
→ Review the new MSBuildTask0006-0008 warnings for impact on your build output dotnet/msbuild [plan]
→ Watch for the new release handoff generation to simplify your MAUI release process dotnet/maui [monitor]

References

[1] Make telemetry initialization and disposal best-effort so it can never fail a build ↗ dotnet/msbuild
[2] Make telemetry initialization and disposal best-effort so it can never fail a build (#14554) dotnet/msbuild
[3] [Mono.Android] Bind API-37.1 ↗ dotnet/android
[4] [Java.Interop] Avoid locks for cached JNI member lookups ↗ dotnet/android
[5] Add public-safe release handoff generation ↗ dotnet/maui
[6] Promote typed parameter diagnostics to warnings ↗ dotnet/msbuild
[7] [build] Stabilize Android define constant ordering ↗ dotnet/android

Quick answers

What shipped in .NET on August 18, 2026?: A NullReferenceException in MSBuild's telemetry disposal is silently taking down .NET Framework builds. In total, 24 commits and 25 pull requests landed.
Who contributed to .NET on August 18, 2026?: 9 developers shipped this update, including copilot-swe-agent, Copilot, Viktor Hofer, OvesN, dotnet-maestro, jonpryor, jonathanpeppers, and vs-mobiletools-engineering-service2, and 1 more.
What were the notable .NET updates?: Make telemetry initialization and disposal best-effort so it can never fail a build, Make telemetry initialization and disposal best-effort so it can never fail a build (#14554), and [Mono.Android] Bind API-37.1.

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