Hi all, on August 11th 2023, I posted to wikitech-l and tech news the intention to make this policy official.
During the feedback period no vetoes were voiced, but there was various feedback around the structure and phrasing of the document.
For full transparency, the edits I have made during the feedback period can be reviewed in full here: https://www.mediawiki.org/w/index.php?title=Stable_interface_policy%2Ffrontend&diff=6107667&oldid=6065454 (see history for a more granular view of the changes)
These changes should not change the meaning of the document, but if you believe any of those edits have done that, please do reply to this thread so they can be discussed and rectified ASAP.
Thank you to all those that have engaged with this document and got us to this stage!