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Minecraft 18w49a

SnapshotLegacy 1.x

Minecraft 18w49a is a Java Edition snapshot released on 5 Dec 2018 under the classic 1.x numbering. Mojang lists Java 8 as the required runtime. It speaks network protocol 450.

Released
5 Dec 2018
Requires Java
Java 8+
Protocol version
450
Data version
1916
Version group
18w
Numbering
Legacy (1.x)
Server software
0 with builds
Position
#424 of 903

Official downloads

Served by Mojang. Verify the checksum before running anything.

FileSizeSHA-1Download
Server jar33.4 MB5b6eb767f670…piston-data.mojang.com ↗
Client jar16.7 MB2a0b27ad8bd6…piston-data.mojang.com ↗

The catalogue on 18w49a

Projects that name 18w49a in their own release metadata. Follow any of these to the full filtered list.

What runs on 18w49a

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

Everything in 18w

48 versions in this group.

Filter list
VersionTypeProtocolReleased
18w50aSnapshot45112 Dec 2018
18w49aSnapshot4505 Dec 2018
18w48bSnapshot44930 Nov 2018
18w48aSnapshot44829 Nov 2018
18w47bSnapshot44723 Nov 2018
18w47aSnapshot44621 Nov 2018
18w46aSnapshot44515 Nov 2018
18w45aSnapshot4447 Nov 2018
18w44aSnapshot44331 Oct 2018
18w43cSnapshot44226 Oct 2018
18w43bSnapshot44124 Oct 2018
18w43aSnapshot44124 Oct 2018
18w33aSnapshot39815 Aug 2018
18w32aSnapshot3978 Aug 2018
18w31aSnapshot3961 Aug 2018
18w30bSnapshot39526 Jul 2018
18w30aSnapshot39425 Jul 2018
18w22cSnapshot38231 May 2018
18w22bSnapshot38130 May 2018
18w22aSnapshot38029 May 2018
18w21bSnapshot37925 May 2018
18w21aSnapshot37823 May 2018
18w20cSnapshot37717 May 2018
18w20bSnapshot37616 May 2018
18w20aSnapshot37515 May 2018
18w19bSnapshot3749 May 2018
18w19aSnapshot3738 May 2018
18w16aSnapshot37219 Apr 2018
18w15aSnapshot37111 Apr 2018
18w14bSnapshot3705 Apr 2018
18w14aSnapshot3694 Apr 2018
18w11aSnapshot36813 Mar 2018
18w10dSnapshot3679 Mar 2018
18w10cSnapshot3668 Mar 2018
18w10bSnapshot3657 Mar 2018
18w10aSnapshot3646 Mar 2018
18w09aSnapshot3631 Mar 2018
18w08bSnapshot36222 Feb 2018
18w08aSnapshot36121 Feb 2018
18w07cSnapshot36016 Feb 2018
18w07bSnapshot35915 Feb 2018
18w07aSnapshot35814 Feb 2018
18w06aSnapshot3579 Feb 2018
18w05aSnapshot35631 Jan 2018
18w03bSnapshot35517 Jan 2018
18w03aSnapshot35417 Jan 2018
18w02aSnapshot35310 Jan 2018
18w01aSnapshot3523 Jan 2018

Questions about Minecraft 18w49a

What Java version does Minecraft 18w49a require?

Minecraft 18w49a 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 18w49a use?

Minecraft 18w49a speaks protocol 450. A client and a server can only connect when their protocol numbers match.

Where do I download the Minecraft 18w49a 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 18w49aServer software, loaders and the Java requirement in one placeJava 8 downloadsVerified Temurin builds for Windows, macOS and LinuxEverything in 18wSnapshots, 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.