We have a number of features that were in Preview state, that are now on-by-default. Since Preview is only meant to indicate features that are off-by-default for stable software, we should reflect the fact that these feature are complete by moving them to 'stable'.
<rdar://107159915>
Pull request: https://github.com/WebKit/WebKit/pull/12815
Committed 263033@main (88d12a2d001c): <https://commits.webkit.org/263033@main> Reviewed commits have been landed. Closing PR #12815 and removing active labels.