Java Edition 1.18.1 Release Candidate 3

1.18.1 Release Candidate 3 (known as 1.18.1-rc3 in the launcher) is the third release candidate for Java Edition 1.18.1, released on December 10, 2021, which fixes a critical security issue.

Fixes

 * Other
 * Fixed a critical security issue in which players are able to execute code on others' devices via in-game messaging.