Java What changed in 1.21.1
Everything below is measured by comparing the game files of 1.21 with 1.21.1 — not copied from patch notes.
Development cycle
Every build Mojang published on the way to 1.21.1, in order.
Release candidate
1The build Mojang intends to ship unless a blocking bug turns up.
Release
1.21.1The build that shipped. Everything above led here.