Minecraft 1.21-pre1 Update - What's New
First pre-release for Tricky Trials. Feature-complete build for testing Trial Chambers, Breeze, mace, and auto-crafter. Many bug fixes from snapshots.
Overview
Minecraft 1.21-pre1 is a pre-release for Minecraft: Java Edition, published on May 29, 2024. Pre-releases are feature-complete candidates handed out near the end of a version's development so plugin authors and server owners can test against a near-final build. This one carries 5 logged changes, mostly final-stretch fixes.
The work in this update spans bug fixes. On the bug fixes side it addresses Trial Chamber generation conflicts and Breeze targeting through walls. It also resolves 5 reported bugs, which is typical maintenance work that keeps worlds and servers stable.
This build is part of the development cycle leading to 1.21 (Tricky Trials). Treat it as a preview rather than a destination: features can change, be renamed, or be cut entirely before they reach the stable release, so it is meant for testing and feedback, not for your main world or a live server.
Changes
#Bug Fixes(5)
- Fixed Trial Chamber generation conflicts
- Fixed Breeze targeting through walls
- Fixed mace enchantment interactions
- Fixed crafter block facing direction
- Multiple snapshot regression fixes
Server Admin Migration Guide
- Pre-release only - do not use in production
- Test plugins against this build to prepare for 1.21 release
Known Issues
- Pre-release - expect remaining bugs
What This Means
For players
As a pre-release, 1.21-pre1 is close to final but still a test build. It is a good way to preview 1.21 early, but keep your main world on the current stable version until the full release lands.
For server admins
Do not run 1.21-pre1 on a public server. Development builds like this exist so you can test plugins and mods ahead of launch, not to host players. Spin up a private staging instance, confirm your plugins load, and report regressions while there is still time to fix them before release.
Background & Context
- Pre-releases arrive at the tail end of a development cycle and are aimed at mod and plugin authors who need to test against a near-final build.
- This build was preparing the launch of 1.21.
- Always keep a backup of important worlds before changing versions; the Astroworld versions database tracks client and server compatibility for 1.21-pre1.
Frequently Asked Questions
When was Minecraft 1.21-pre1 released?
Minecraft 1.21-pre1 was released on May 29, 2024 as a pre-release for Minecraft: Java Edition.
What is new in 1.21-pre1?
First pre-release for Tricky Trials. Feature-complete build for testing Trial Chambers, Breeze, mace, and auto-crafter. Many bug fixes from snapshots. Notable entries include: Fixed Trial Chamber generation conflicts; Fixed Breeze targeting through walls; Fixed mace enchantment interactions. In total it documents 5 changes across 1 category.
Should I use 1.21-pre1 on my main world?
No. 1.21-pre1 is a pre-release meant for testing. Keep your main world on the latest stable release and only open a backup copy in a separate test world to try the new content.
Can I run 1.21-pre1 on a Minecraft server?
It is not recommended for a public server. Pre-release only - do not use in production. Use a private staging instance to test plugins and mods, not to host players.
Which Minecraft version is 1.21-pre1 a preview of?
1.21-pre1 is part of the development cycle for 1.21, the update known as Tricky Trials. Features shown here are still in progress and may change before the final release.
Are there known issues in 1.21-pre1?
Yes. Documented issues for this build include: Pre-release - expect remaining bugs. Development builds are expected to have rough edges that get fixed before release.
Looking for version compatibility info?
Check client and server version details on our versions database.