Minecraft 1.15.1-pre1

Pre-releaseLegacy 1.x

Minecraft 1.15.1-pre1 is a Java Edition pre-release released on 12 Dec 2019 under the classic 1.x numbering. Mojang lists Java 8 as the required runtime. It speaks network protocol 574.

Released: 12 Dec 2019
Requires Java: Java 8+
Protocol version: 574
Data version: 2226
Version group: 1.15
Numbering: Legacy (1.x)
Server software: 0 with builds
Position: #497 of 903

Official downloads

Served by Mojang. Verify the checksum before running anything.

File	Size	SHA-1	Download
Server jar	34.5 MB	`289a247dd429…`	piston-data.mojang.com ↗
Client jar	14.8 MB	`70e27f84a178…`	piston-data.mojang.com ↗

The catalogue on 1.15.1-pre1

Projects that name 1.15.1-pre1 in their own release metadata. Follow any of these to the full filtered list.

What runs on 1.15.1-pre1

Builds are counted from each project's own API; declared support comes from the loader's metadata.

Full compatibility

Software	Latest build	Published	Checksum	Download
Fabric Loader	0.19.3	Not build based	declared	loader
Quilt Loader	0.30.1-beta.2	Not build based	declared	loader

Everything in 1.15

13 versions in this group.

Filter list

Version	Type	Protocol	Released
1.15.2	Release	578	17 Jan 2020
1.15.2-pre2	Pre-release	577	16 Jan 2020
1.15.2-pre1	Pre-release	576	14 Jan 2020
1.15.1	Release	575	16 Dec 2019
1.15.1-pre1	Pre-release	574	12 Dec 2019
1.15	Release	573	9 Dec 2019
1.15-pre7	Pre-release	572	9 Dec 2019
1.15-pre6	Pre-release	571	6 Dec 2019
1.15-pre5	Pre-release	570	5 Dec 2019
1.15-pre4	Pre-release	569	3 Dec 2019
1.15-pre3	Pre-release	567	28 Nov 2019
1.15-pre2	Pre-release	566	25 Nov 2019
1.15-pre1	Pre-release	565	21 Nov 2019

Questions about Minecraft 1.15.1-pre1

What Java version does Minecraft 1.15.1-pre1 require?

Minecraft 1.15.1-pre1 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 1.15.1-pre1 use?

Minecraft 1.15.1-pre1 speaks protocol 574. A client and a server can only connect when their protocol numbers match.

Where do I download the Minecraft 1.15.1-pre1 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 1.15.1-pre1Server software, loaders and the Java requirement in one place Java 8 downloadsVerified Temurin builds for Windows, macOS and Linux Everything in 1.15Snapshots, 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.