@rachel @renchap @thisismissem We’ve been hard at work improving our communications to developers. We now publish:
• in-depth article for each Safari release at https://webkit.org, w/ lots of how-to
• comprehensive release notes (including all developer-facing bug fixes) for every Safari beta and release: https://developer.apple.com/documentation/safari-release-notes
• comprehensive release notes for Safari Technology Preview: https://developer.apple.com/documentation/safari-technology-preview-release-notes

For Web Push, published four articles, one presentation, docs + WWDC keynote