Java Edition 1.12.1-pre1Share article feedback

Minecraft 1.12.1-pre1

Edition	Java Edition
Release date	August 2, 2017
Type	Pre-release
Pre-release for	1.12.1
Downloads	Client (.json) Server
Protocol version	337
Data version	1240
Resource pack format	3
Minimum Java version	Java SE 8
◄◄  1.12 1.12.1 1.12.2 ►► ◄  17w31a 1.12.1-pre1

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1.12.1-pre1 is the first and only pre-release for Java Edition 1.12.1, which includes minor optimizations and fixes bugs.

Fixes

3 issues fixed

From released versions before 1.12.1

• MC-86016 – Some Mojang staff not mentioned in credits.txt.
• MC-117087 – Class.getSimpleName performance issue with large number of block entities.

From the 1.12.1 development versions

• MC-119840 – Diamonds get moved into crafting slots on any chat message.

Other

• Minor optimizations.

Video

Video made by slicedlime:

Trivia

• 1.12.1-pre1 was previously removed from the launcher for some time, but was added back in September 2018.