Is 2026.1.0 the first stable/ESR release to drop support for iOS and other old browsers? That’s a big enough change it should be listed somewhere in the release notes. I couldn’t find anything about it in the “detailed changes” search box at the end though.
Oh, I think that’s cause you’ve linked to the changelog for v2026.1.0-latest → v2026.1.0. If you change it to v3.5.3 → v2026.1.0 then it shows 2397 detailed changes, rather than only 369. For these ESR releases you really should be linking to the last ESR release instead of -latest (is that like a RC?)
I still can’t see which change clearly marked the dropping of support for the old browsers, but I could find this one at least: FIX: Update 'modern mobile' regex following iOS 15 support drop by davidtaylorhq · Pull Request #34792 · discourse/discourse · GitHub