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Minecraft 1.21.4-pre2

Pre-releaseLegacy 1.x

Minecraft 1.21.4-pre2 is a Java Edition pre-release released on 25 Nov 2024 under the classic 1.x numbering. Mojang lists Java 21 as the required runtime. It speaks network protocol 1073742048.

Official artwork published by Mojang for Minecraft 1.21.4-pre2

1.21.4 Pre-Release 2

We are starting off this week with the second 1.21.4 Pre-Release, including even more bug fixes!Happy mining!Technical ChangesThe Data Pack version is now 61Data Pack Version 61Furnace, Smoker and Blast Furnace DataRenamed CookTime to cooking_time_spentRen
Image and summary: Mojang Studios, from the official Java Edition patch notes. Not affiliated with Mojang.
Released
25 Nov 2024
Requires Java
Java 21+
Protocol version
1073742048
Data version
4182
Version group
1.21
Numbering
Legacy (1.x)
Server software
0 with builds
Position
#786 of 903

Official downloads

Served by Mojang. Verify the checksum before running anything.

FileSizeSHA-1Download
Server jar54.2 MB0d53352b9a13piston-data.mojang.com ↗
Client jar27.0 MBc02d985df0c8piston-data.mojang.com ↗

The catalogue on 1.21.4-pre2

Projects that name 1.21.4-pre2 in their own release metadata. Follow any of these to the full filtered list.

What runs on 1.21.4-pre2

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 1.21

58 versions in this group.

Filter list
VersionTypeProtocolReleased
1.21.11Release7749 Dec 2025
1.21.11-rc3Release candidate10737421108 Dec 2025
1.21.11-rc2Release candidate10737421095 Dec 2025
1.21.11-rc1Release candidate10737421084 Dec 2025
1.21.11-pre5Pre-release10737421073 Dec 2025
1.21.11-pre4Pre-release10737421061 Dec 2025
1.21.11-pre3Pre-release107374210525 Nov 2025
1.21.11-pre2Pre-release107374210421 Nov 2025
1.21.11-pre1Pre-release107374210319 Nov 2025
1.21.10Release7737 Oct 2025
1.21.10-rc1Release candidate10737420982 Oct 2025
1.21.9Release77330 Sept 2025
1.21.9-rc1Release candidate107374209725 Sept 2025
1.21.9-pre4Pre-release107374209623 Sept 2025
1.21.9-pre3Pre-release107374209522 Sept 2025
1.21.9-pre2Pre-release107374209419 Sept 2025
1.21.9-pre1Pre-release107374209316 Sept 2025
1.21.8Release77217 Jul 2025
1.21.8-rc1Release candidate107374208315 Jul 2025
1.21.7Release77230 Jun 2025
1.21.7-rc2Release candidate107374208226 Jun 2025
1.21.7-rc1Release candidate107374208125 Jun 2025
1.21.6Release77117 Jun 2025
1.21.6-rc1Release candidate107374208012 Jun 2025
1.21.6-pre4Pre-release107374207910 Jun 2025
1.21.6-pre3Pre-release10737420784 Jun 2025
1.21.6-pre2Pre-release10737420772 Jun 2025
1.21.6-pre1Pre-release107374207628 May 2025
1.21.5Release77025 Mar 2025
1.21.5-rc2Release candidate107374206724 Mar 2025
1.21.5-rc1Release candidate107374206620 Mar 2025
1.21.5-pre3Pre-release107374206518 Mar 2025
1.21.5-pre2Pre-release107374206412 Mar 2025
1.21.5-pre1Pre-release107374206311 Mar 2025
1.21.4Release7693 Dec 2024
1.21.4-rc3Release candidate107374205229 Nov 2024
1.21.4-rc2Release candidate107374205129 Nov 2024
1.21.4-rc1Release candidate107374205028 Nov 2024
1.21.4-pre3Pre-release107374204926 Nov 2024
1.21.4-pre2Pre-release107374204825 Nov 2024
1.21.4-pre1Pre-release107374204720 Nov 2024
1.21.3Release76823 Oct 2024
1.21.2Release76822 Oct 2024
1.21.2-rc2Release candidate107374204321 Oct 2024
1.21.2-rc1Release candidate107374204217 Oct 2024
1.21.2-pre5Pre-release107374204116 Oct 2024
1.21.2-pre4Pre-release107374204015 Oct 2024
1.21.2-pre3Pre-release107374203911 Oct 2024
1.21.2-pre2Pre-release107374203810 Oct 2024
1.21.2-pre1Pre-release10737420378 Oct 2024
1.21.1Release7678 Aug 2024
1.21.1-rc1Release candidate10737420287 Aug 2024
1.21Release76713 Jun 2024
1.21-rc1Release candidate107374202710 Jun 2024
1.21-pre4Pre-release10737420267 Jun 2024
1.21-pre3Pre-release10737420255 Jun 2024
1.21-pre2Pre-release107374202431 May 2024
1.21-pre1Pre-release107374202329 May 2024

Questions about Minecraft 1.21.4-pre2

What Java version does Minecraft 1.21.4-pre2 require?

Minecraft 1.21.4-pre2 requires Java 21 or newer. Mojang publishes this in the version metadata, so an older runtime refuses to start it.

What protocol version does Minecraft 1.21.4-pre2 use?

Minecraft 1.21.4-pre2 speaks protocol 1073742048. A client and a server can only connect when their protocol numbers match.

Where do I download the Minecraft 1.21.4-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

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