Minecraft 26.1(.2) is technically a big update. Remember to only use mods, resource packs, shaders and other content that are marked as compatible with 26.1.2.
Any worlds that are upgraded to 26.1.2 cannot be downgraded - backups are recommended.
Java 25 is required, which most launchers, except MultiMC, handle automatically.
Major changes:
Added Animatica Refabricated - a fork of Animatica with same features
Removed Animatica - not updated yet
Removed MixinTrace - should no longer be necessary
Removed Polytone - not updated yet
Applied optimizations for Cubes Without Borders
If using borderless and multiplayer, you can, if unfocused, observe gameplay without pausing
F11 will prefer normal fullscreen on Windows and Mac by default
Disabled Sodium Extra's macOS resolution optimization as it caused a partially black screen, enabled CWB's one instead
If your GPU driver crashes, the game will try to use borderless fullscreen instead of normal one
Changes from 13.2.0-beta.6:
Updated Cubes Without Borders
If your GPU driver fails on normal fullscreen, it will try to use borderless fullscreen instead
Clarified where the user can configure macOS resolution by adjusting MMH and video settings tooltip