Minecraft 1.12.2-pre2

Pre-releaseLegacy 1.x

Minecraft 1.12.2-pre2 is a Java Edition pre-release released on 15 Sept 2017 under the classic 1.x numbering. Mojang lists Java 8 as the required runtime. It speaks network protocol 339.

Released: 15 Sept 2017
Requires Java: Java 8+
Protocol version: 339
Data version: 1342
Version group: 1.12
Numbering: Legacy (1.x)
Server software: 0 with builds
Position: #348 of 903

Official downloads

Served by Mojang. Verify the checksum before running anything.

File	Size	SHA-1	Download
Server jar	28.8 MB	`641adfb6a646…`	piston-data.mojang.com ↗
Client jar	9.7 MB	`404877dbb918…`	piston-data.mojang.com ↗

Versions that can connect to each other

Protocol 339 is shared by these versions, so their clients and servers can talk to each other.

1.12.2-pre1

The catalogue on 1.12.2-pre2

Projects that name 1.12.2-pre2 in their own release metadata. Follow any of these to the full filtered list.

Everything in 1.12

13 versions in this group.

Filter list

Version	Type	Protocol	Released
1.12.2	Release	340	18 Sept 2017
1.12.2-pre2	Pre-release	339	15 Sept 2017
1.12.2-pre1	Pre-release	339	13 Sept 2017
1.12.1	Release	338	3 Aug 2017
1.12.1-pre1	Pre-release	337	2 Aug 2017
1.12	Release	335	2 Jun 2017
1.12-pre7	Pre-release	334	31 May 2017
1.12-pre6	Pre-release	333	29 May 2017
1.12-pre5	Pre-release	332	19 May 2017
1.12-pre4	Pre-release	331	18 May 2017
1.12-pre3	Pre-release	330	17 May 2017
1.12-pre2	Pre-release	329	11 May 2017
1.12-pre1	Pre-release	328	10 May 2017

Questions about Minecraft 1.12.2-pre2

What Java version does Minecraft 1.12.2-pre2 require?

Minecraft 1.12.2-pre2 requires Java 8 or newer. Mojang publishes this in the version metadata, so an older runtime refuses to start it.

What protocol version does Minecraft 1.12.2-pre2 use?

Minecraft 1.12.2-pre2 speaks protocol 339, which it shares with 1.12.2-pre1. Clients and servers on the same protocol can connect to each other.

Where do I download the Minecraft 1.12.2-pre2 server jar?

Mojang hosts it directly. This page links to the official file with its SHA-1 checksum and size, so you can verify the download before you run it. We do not mirror or repackage it.

Go deeper

Full compatibility for 1.12.2-pre2Server software, loaders and the Java requirement in one place Java 8 downloadsVerified Temurin builds for Windows, macOS and Linux Everything in 1.12Snapshots, pre-releases and candidates in this group How Minecraft version numbers workWhy 1.21 was followed by 26.1, and what happened to 1.22

Metadata from Mojang’s official version manifest. Protocol and data versions from the PrismarineJS minecraft-data project.