Minecraft 1.18-rc1
Release candidateLegacy 1.xMinecraft 1.18-rc1 is a Java Edition release candidate released on 25 Nov 2021 under the classic 1.x numbering. Mojang lists Java 17 as the required runtime. It speaks network protocol 1073741881.
Minecraft 1.18 Release Candidate 1
We're now releasing the first (and hopefully only) release candidate for Caves & Cliffs: Part II. If there are no major issues following this release, no further changes will be done before the full release. Happy mining! Technical Changes in 1.18 Rel
- Released
- 25 Nov 2021
- Requires Java
- Java 17+
- Protocol version
- 1073741881
- Data version
- 2856
- Version group
- 1.18
- Numbering
- Legacy (1.x)
- Server software
- 0 with builds
- Position
- #603 of 903
Official downloads
Served by Mojang. Verify the checksum before running anything.
| File | Size | SHA-1 | Download |
|---|---|---|---|
| Server jar | 44.2 MB | 81a2baf05f8f… | piston-data.mojang.com ↗ |
| Client jar | 19.1 MB | 6232765f8b87… | piston-data.mojang.com ↗ |
The catalogue on 1.18-rc1
Projects that name 1.18-rc1 in their own release metadata. Follow any of these to the full filtered list.
What runs on 1.18-rc1
Builds are counted from each project's own API; declared support comes from the loader's metadata.
| 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 1.18
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-rc1
What Java version does Minecraft 1.18-rc1 require?
Minecraft 1.18-rc1 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-rc1 use?
Minecraft 1.18-rc1 speaks protocol 1073741881. A client and a server can only connect when their protocol numbers match.
Where do I download the Minecraft 1.18-rc1 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.