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Flaky test: ProcessLoggingEventConcurrentWithShutdown_DoesNotThrow can crash test process via unhandled background-thread exception

Area: Tests

bug

flaky-testTests that have failed but passed on rerun.Tests that have failed but passed on rerun.

Status: Open.

#13744 In dotnet/msbuild;

· rainersigwald opened on May 12, 2026

TestEnvironment.SetEnvironmentVariable should auto-invalidate MSBuild static caches

Area: Tests

Status: Open.

#13742 In dotnet/msbuild;

· AR-May opened on May 12, 2026

Provide environment variables overriding routing decision for tasks

Area: TasksIssues impacting the tasks shipped in Microsoft.Build.Tasks.Core.dll.Issues impacting the tasks shipped in Microsoft.Build.Tasks.Core.dll.

Status: Open.

Feature

#13738 In dotnet/msbuild;

· JanProvaznik opened on May 12, 2026

MSB4216 when x86 Full Framework MSBuild hosts Arcade SDK tasks with Runtime=NET

Area: TasksIssues impacting the tasks shipped in Microsoft.Build.Tasks.Core.dll.Issues impacting the tasks shipped in Microsoft.Build.Tasks.Core.dll.

Status: Open.

#13739 In dotnet/msbuild;

· marcpopMSFT opened on May 11, 2026

ToolTask drops final stdout/stderr lines after Wave18_6 EOF wait — flaky ToolTaskCanChangeCanonicalErrorFormat

flaky-testTests that have failed but passed on rerun.Tests that have failed but passed on rerun.

vendors

Status: Open.

#13734 In dotnet/msbuild;

· rainersigwald opened on May 11, 2026

Test flakiness in multithreaded bootstrap tests

flaky-testTests that have failed but passed on rerun.Tests that have failed but passed on rerun.

Status: Open.

Bug

#13732 In dotnet/msbuild;

· rainersigwald opened on May 11, 2026

Collect binlogs as pipeline artifacts for all enabled binlog scenarios

Area: Logging

Status: Open.

#13730 In dotnet/msbuild;

· AlesProkop opened on May 11, 2026

Fix branches vs18.3 and vs18.0

Status: Open.

#13727 In dotnet/msbuild;

· OvesN opened on May 11, 2026

Fail fast on connect-to-node when launched child process has already exited

Status: Open.

#13718 In dotnet/msbuild;

· rainersigwald opened on May 8, 2026

TimeoutException when using DOTNET_CLI_USE_MSBUILD_SERVER=true in 10.0.300

Status: Open.

#13715 In dotnet/msbuild;

· sebastienros opened on May 7, 2026

Task hosts should set TaskEnvironment instead of relying on task defaults

Area: TasksIssues impacting the tasks shipped in Microsoft.Build.Tasks.Core.dll.Issues impacting the tasks shipped in Microsoft.Build.Tasks.Core.dll.

Status: Open.

#13714 In dotnet/msbuild;

· AR-May opened on May 7, 2026

·  

.NET 10

Support editorconfig for defining diagnostic severity levels

Area: BuildCheck

User Experience

Status: Open.

Feature

#13713 In dotnet/msbuild;

· baronfel opened on May 7, 2026