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Allow overlapping compat keys#4034

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ddbeck wants to merge 1 commit into
web-platform-dx:mainfrom
ddbeck:overlap-compat-keys
Open

Allow overlapping compat keys#4034
ddbeck wants to merge 1 commit into
web-platform-dx:mainfrom
ddbeck:overlap-compat-keys

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@ddbeck ddbeck commented May 13, 2026

Towards #1173 and a prerequisite to feature merging.

This PR allows authors to allow BCD keys to be shared between features, by adding them to an allow list. It provides guidelines for when to do this (rarely) and demonstrates it by resolving one of the commented cases where we wished to do this.

This PR is not strictly breaking, but we should announce it in the upcoming changes discussion thread and emphasize this change in the release notes.

@ddbeck ddbeck added the minor version required This PR requires a minor version semver release (vX.Y+1.0) label May 13, 2026
@github-actions github-actions Bot added documentation Improvements or additions to documentation feature definition Creating or defining new features or groups of features. tools and infrastructure Project internal tooling, such as linters, GitHub Actions, or repo settings labels May 13, 2026
@ddbeck ddbeck force-pushed the overlap-compat-keys branch 4 times, most recently from 25832e1 to 55e55d1 Compare May 18, 2026 12:23
@ddbeck ddbeck force-pushed the overlap-compat-keys branch from 55e55d1 to e473578 Compare May 18, 2026 12:25
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documentation Improvements or additions to documentation feature definition Creating or defining new features or groups of features. minor version required This PR requires a minor version semver release (vX.Y+1.0) tools and infrastructure Project internal tooling, such as linters, GitHub Actions, or repo settings

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