Listed changes in PUB-AAM Pull #15 https://github.com/w3c/dpub-aam/pull/15 Note: Most (maybe all) DPUB role mappings are synonyms, so (unless Joanie already did it for ATK) some these may need new webkit internal roles in addition to the Mac platform mapping changes. Once merged, the list will be here: https://w3c.github.io/dpub-aam/ but the PR (first link) will probably be easier to use for implementation changes. Thanks.
<rdar://problem/102725047>
The DPUB change is merged.
FYI, there will be some coming impact for computed role on the extension specs in https://github.com/w3c/aria/issues/1887 so this can wait until that decision, then there will be WPTImpact. Tagging.