Minecraft 26.3 Pre-Release 2 changes UI input and data packs

The second 26.3 pre-release narrows Java Edition toward launch with input-method, data-pack and bug-fix changes.

Test build availableMinecraftSep 4, 2026

Verified answerMinecraft 26.3 Pre-Release 2 is a Java Edition test build. It removes Minecraft's custom IME rendering and advances the data-pack version from 119.0 to 120.0, so packs tested only against Pre-Release 1 need another compatibility check.

What to do nowBack up the world, test in a separate installation, and verify the 120.0 data-pack changes before opening a production world.

Primary source checked Sep 10, 2026. Unconfirmed details remain separated below.

What happened

Mojang published Minecraft 26.3 Pre-Release 2 on September 4.

The build is a Java Edition test release, not a stable-world recommendation.

The practical change: Back up the world, test in a separate installation, and verify the 120.0 data-pack changes before opening a production world.

What is confirmed

Custom in-game Input Method Editor rendering has been removed.
Data-pack version is 120.0.
The official notes rename the relevant tag and list multiple resolved issues.
Snapshots are enabled from the Installations tab in the Java launcher.

What this means for players

IME behavior should now follow the operating system presentation more directly.

Data-pack authors need to retest against version 120.0 instead of assuming pre-release 1 compatibility.

What is still unconfirmed

A pre-release does not guarantee that every listed behavior will remain identical in the final 26.3 build.

What to do next

01
Back up the world.
02
Test in a separate installation.
03
Review the exact tag rename before loading an existing data pack.

Official source and image record

Minecraft 26.3 Pre-Release 2 changes UI input and data packs

Primary factual source used for this report.

Minecraft · Checked Sep 10, 2026