# \[Accepted with Modifications\] Amendment to SE-0303: Package Manager Extensible Build Tools

**URL:** <https://forums.swift.org/t/accepted-with-modifications-amendment-to-se-0303-package-manager-extensible-build-tools/52060>\
**Category:** Announcements\
**Created:** [September 14, 2021, 9:31pm UTC](https://forums.swift.org/t/accepted-with-modifications-amendment-to-se-0303-package-manager-extensible-build-tools/52060 "2021-09-14T21:31:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tomerd](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/tomerd/32/3402_2.png) [@tomerd](https://forums.swift.org/u/tomerd)\
**Post date:** [September 14, 2021, 9:31pm UTC](https://forums.swift.org/t/accepted-with-modifications-amendment-to-se-0303-package-manager-extensible-build-tools/52060/1 "2021-09-14T21:31:21Z")

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Hi folks,

The [review](https://forums.swift.org/t/amendment-se-0303-package-manager-extensible-build-tools/) for an amendment to [SE-0303: Package Manager Extensible Build Tools](https://github.com/apple/swift-evolution/blob/main/proposals/0303-swiftpm-extensible-build-tools.md) has concluded and the amendment proposal has been **accepted with modification**.

The review was positive, and the reviewers suggested two additive changes that the author agrees to add:

1. Support async @main on versions and platforms that support it.
2. Add variant to diagnostics API that takes a severity level.

Thank you to everyone who participated in the review!

Tom Doron,  
Review Manager