Minecraft 1.18.1
ReleaseLegacy 1.xMinecraft 1.18.1 is a Java Edition full release released on 10 Dec 2021 under the classic 1.x numbering. Mojang lists Java 17 as the required runtime. It speaks network protocol 757.
Minecraft: Java Edition 1.18.1
We’re now releasing Minecraft: Java Edition 1.18.1. This release fixes a critical security issue for multiplayer servers, changes how the world fog works to make more of the world visible, and fixes a couple of other bugs. If you are running a multiplayer
- Released
- 10 Dec 2021
- Requires Java
- Java 17+
- Protocol version
- 757
- Data version
- 2865
- Version group
- 1.18
- Numbering
- Legacy (1.x)
- Server software
- 6 with builds
- Position
- #612 of 903
Official downloads
Served by Mojang. Verify the checksum before running anything.
| File | Size | SHA-1 | Download |
|---|---|---|---|
| Server jar | 44.2 MB | 125e5adf40c6… | piston-data.mojang.com ↗ |
| Client jar | 19.1 MB | 7e46fb476094… | piston-data.mojang.com ↗ |
Versions that can connect to each other
Protocol 757 is shared by these versions, so their clients and servers can talk to each other.
The catalogue on 1.18.1
Projects that name 1.18.1 in their own release metadata. Follow any of these to the full filtered list.
What runs on 1.18.1
Builds are counted from each project's own API; declared support comes from the loader's metadata.
| Software | Latest build | Published | Checksum | Download |
|---|---|---|---|---|
| LooHP Limbo | #9 | 23 Feb 2022 | Not published | jar ↗ |
| Paper | #216 | 28 Feb 2022 | 4d40508f5f9b… | jar ↗ |
| Pufferfish | #47 | 19 Feb 2022 | Not published | jar ↗ |
| Purpur | #1566 | 1 Mar 2022 | Not published | jar ↗ |
| Spigot | #3443 | 28 Feb 2022 | Not published | jar ↗ |
| Sponge | #24 | 28 Jul 2026 | Not published | jar ↗ |
| Pufferfish | #47 | Not build based | inferred | loader |
| Spigot | #3443 | Not build based | inferred | loader |
| LooHP Limbo | #9 | Not build based | inferred | loader |
| Sponge | 1.18.1-9.0.0-RC1119 | Not build based | inferred | loader |
| Minecraft Forge | 39.1.0 | Not build based | declared | loader |
| Fabric Loader | 0.19.3 | Not build based | declared | loader |
| Quilt Loader | 0.30.1-beta.2 | Not build based | declared | loader |
Everything in 1.18
23 versions in this group.
| Version | Type | Protocol | Released |
|---|---|---|---|
| 1.18.2 | Release | 758 | 28 Feb 2022 |
| 1.18.2-rc1 | Release candidate | 1073741897 | 25 Feb 2022 |
| 1.18.2-pre3 | Pre-release | 1073741896 | 23 Feb 2022 |
| 1.18.2-pre2 | Pre-release | 1073741895 | 21 Feb 2022 |
| 1.18.2-pre1 | Pre-release | 1073741894 | 18 Feb 2022 |
| 1.18.1 | Release | 757 | 10 Dec 2021 |
| 1.18.1-rc3 | Release candidate | 1073741888 | 10 Dec 2021 |
| 1.18.1-rc2 | Release candidate | 1073741887 | 8 Dec 2021 |
| 1.18.1-rc1 | Release candidate | 1073741886 | 7 Dec 2021 |
| 1.18.1-pre1 | Pre-release | 1073741885 | 3 Dec 2021 |
| 1.18 | Release | 757 | 30 Nov 2021 |
| 1.18-rc4 | Release candidate | 1073741884 | 29 Nov 2021 |
| 1.18-rc3 | Release candidate | 1073741883 | 26 Nov 2021 |
| 1.18-rc2 | Release candidate | 1073741882 | 26 Nov 2021 |
| 1.18-rc1 | Release candidate | 1073741881 | 25 Nov 2021 |
| 1.18-pre8 | Pre-release | 1073741880 | 24 Nov 2021 |
| 1.18-pre7 | Pre-release | 1073741879 | 23 Nov 2021 |
| 1.18-pre6 | Pre-release | 1073741878 | 22 Nov 2021 |
| 1.18-pre5 | Pre-release | 1073741877 | 19 Nov 2021 |
| 1.18-pre4 | Pre-release | 1073741876 | 17 Nov 2021 |
| 1.18-pre3 | Pre-release | 1073741875 | 17 Nov 2021 |
| 1.18-pre2 | Pre-release | 1073741874 | 16 Nov 2021 |
| 1.18-pre1 | Pre-release | 1073741873 | 11 Nov 2021 |
Questions about Minecraft 1.18.1
What Java version does Minecraft 1.18.1 require?
Minecraft 1.18.1 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 1.18.1 use?
Minecraft 1.18.1 speaks protocol 757, which it shares with 1.18. Clients and servers on the same protocol can connect to each other.
Where do I download the Minecraft 1.18.1 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.
Which server software supports Minecraft 1.18.1?
LooHP Limbo, Paper, Pufferfish, Purpur, Spigot, Sponge publish builds for 1.18.1. Each one is listed with its build number and checksum.
Go deeper
Metadata from Mojang’s official version manifest. Protocol and data versions from the PrismarineJS minecraft-data project.