1.19.3 is a minor update to Java Edition released on December 7, 2022. This update adds experimental features scheduled for 1.20, overhauls the Creative inventory, tweaks settings and tags, and much more. This version is not compatible with 1.19.2 servers.
This update was originally planned to be released on December 6, 2022, but it had been postponed and released on December 7, 2022.