MSBUILDCUSTOMBUILDEVENTWARNING escape hatch removed
The MSBUILDCUSTOMBUILDEVENTWARNING environment variable, which previously allowed custom build events derived from BuildEventArgs, is no longer supported.
Version introduced
.NET 10 Preview 1
Previous behavior
Users could set the MSBUILDCUSTOMBUILDEVENTWARNING environment variable to enable processing of custom build events.
New behavior
The value of the MSBUILDCUSTOMBUILDEVENTWARNING environment variable is not respected anymore.
Type of breaking change
This is a behavioral change.
Reason for change
The escape hatch mechanism provided by the MSBUILDCUSTOMBUILDEVENTWARNING environment variable was a temporary workaround. For more information, see the original breaking change.
Recommended action
Use one of the following newly introduced, built-in events for extensibility instead of your custom derived build event:
- ExtendedCustomBuildEventArgs
- ExtendedBuildErrorEventArgs
- ExtendedBuildMessageEventArgs
- ExtendedBuildWarningEventArgs
Affected APIs
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