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Minecraft 1.20.3-pre1

Pre-releaseLegacy 1.x

Minecraft 1.20.3-pre1 is a Java Edition pre-release released on 20 Nov 2023 under the classic 1.x numbering. Mojang lists Java 17 as the required runtime. It speaks network protocol 1073741988.

Official artwork published by Mojang for Minecraft 1.20.3-pre1

Minecraft 1.20.3 Pre-Release 1

We're bringing you the first Pre-Release of 1.20.3 with updates to server resource pack handling and bug fixes! Technical Changes The Data Pack version is now 26 The Resource Pack version is now 22 Changes to downloaded/world resource pack handling World
Image and summary: Mojang Studios, from the official Java Edition patch notes. Not affiliated with Mojang.
Released
20 Nov 2023
Requires Java
Java 17+
Protocol version
1073741988
Data version
3693
Version group
1.20
Numbering
Legacy (1.x)
Server software
0 with builds
Position
#717 of 903

Official downloads

Served by Mojang. Verify the checksum before running anything.

FileSizeSHA-1Download
Server jar46.9 MBe5db7e4884f5…piston-data.mojang.com ↗
Client jar23.3 MB6d2514a107af…piston-data.mojang.com ↗

The catalogue on 1.20.3-pre1

Projects that name 1.20.3-pre1 in their own release metadata. Follow any of these to the full filtered list.

What runs on 1.20.3-pre1

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

Full compatibility
SoftwareLatest buildPublishedChecksumDownload
Fabric Loader0.19.3Not build baseddeclaredloader
Quilt Loader0.30.1-beta.2Not build baseddeclaredloader

Everything in 1.20

36 versions in this group.

Filter list
VersionTypeProtocolReleased
1.20.6Release76629 Apr 2024
1.20.6-rc1Release candidate107374201626 Apr 2024
1.20.5Release76623 Apr 2024
1.20.5-rc3Release candidate107374201522 Apr 2024
1.20.5-rc2Release candidate107374201419 Apr 2024
1.20.5-rc1Release candidate107374201318 Apr 2024
1.20.5-pre4Pre-release107374201217 Apr 2024
1.20.5-pre3Pre-release107374201116 Apr 2024
1.20.5-pre2Pre-release107374201015 Apr 2024
1.20.5-pre1Pre-release107374200910 Apr 2024
1.20.4Release7657 Dec 2023
1.20.4-rc1Release candidate10737419936 Dec 2023
1.20.3Release7654 Dec 2023
1.20.3-rc1Release candidate107374199230 Nov 2023
1.20.3-pre4Pre-release107374199128 Nov 2023
1.20.3-pre3Pre-release107374199027 Nov 2023
1.20.3-pre2Pre-release107374198922 Nov 2023
1.20.3-pre1Pre-release107374198820 Nov 2023
1.20.2Release76420 Sept 2023
1.20.2-rc2Release candidate107374197718 Sept 2023
1.20.2-rc1Release candidate107374197615 Sept 2023
1.20.2-pre4Pre-release107374197513 Sept 2023
1.20.2-pre3Pre-release107374197412 Sept 2023
1.20.2-pre2Pre-release10737419737 Sept 2023
1.20.2-pre1Pre-release10737419725 Sept 2023
1.20.1Release76312 Jun 2023
1.20.1-rc1Release candidateUnknown9 Jun 2023
1.20Release7632 Jun 2023
1.20-rc1Release candidateUnknown31 May 2023
1.20-pre7Pre-releaseUnknown29 May 2023
1.20-pre6Pre-releaseUnknown25 May 2023
1.20-pre5Pre-releaseUnknown23 May 2023
1.20-pre4Pre-releaseUnknown19 May 2023
1.20-pre3Pre-releaseUnknown19 May 2023
1.20-pre2Pre-releaseUnknown16 May 2023
1.20-pre1Pre-releaseUnknown10 May 2023

Questions about Minecraft 1.20.3-pre1

What Java version does Minecraft 1.20.3-pre1 require?

Minecraft 1.20.3-pre1 requires Java 17 or newer. Mojang publishes this in the version metadata, so an older runtime refuses to start it.

What protocol version does Minecraft 1.20.3-pre1 use?

Minecraft 1.20.3-pre1 speaks protocol 1073741988. A client and a server can only connect when their protocol numbers match.

Where do I download the Minecraft 1.20.3-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 1.20.3-pre1Server software, loaders and the Java requirement in one placeJava 17 downloadsVerified Temurin builds for Windows, macOS and LinuxEverything in 1.20Snapshots, pre-releases and candidates in this groupHow 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.