Minecraft 1.17.1-pre2
Pre-releaseLegacy 1.xMinecraft 1.17.1-pre2 is a Java Edition pre-release released on 29 Jun 2021 under the classic 1.x numbering. Mojang lists Java 16 as the required runtime. It speaks network protocol 1073741861.
Minecraft 1.17.1 Pre-Release 2
The second pre-release for 1.17.1 is now available in your launcher. This pre-release fixes a few more bugs. The Caves & Cliffs Preview Download the latest datapack. Technical Changes in 1.17.1 Pre-release 1 Deaths of named mobs are now logged Fixed
- Released
- 29 Jun 2021
- Requires Java
- Java 16+
- Protocol version
- 1073741861
- Data version
- 2726
- Version group
- 1.17
- Numbering
- Legacy (1.x)
- Server software
- 0 with builds
- Position
- #582 of 903
Official downloads
Served by Mojang. Verify the checksum before running anything.
| File | Size | SHA-1 | Download |
|---|---|---|---|
| Server jar | 41.6 MB | e01e495461ec… | piston-data.mojang.com ↗ |
| Client jar | 18.6 MB | 6edfbe953993… | piston-data.mojang.com ↗ |
The catalogue on 1.17.1-pre2
Projects that name 1.17.1-pre2 in their own release metadata. Follow any of these to the full filtered list.
What runs on 1.17.1-pre2
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 1.17
14 versions in this group.
| Version | Type | Protocol | Released |
|---|---|---|---|
| 1.17.1 | Release | 756 | 6 Jul 2021 |
| 1.17.1-rc2 | Release candidate | 1073741864 | 5 Jul 2021 |
| 1.17.1-rc1 | Release candidate | 1073741863 | 1 Jul 2021 |
| 1.17.1-pre3 | Pre-release | 1073741862 | 30 Jun 2021 |
| 1.17.1-pre2 | Pre-release | 1073741861 | 29 Jun 2021 |
| 1.17.1-pre1 | Pre-release | 1073741860 | 18 Jun 2021 |
| 1.17 | Release | 755 | 8 Jun 2021 |
| 1.17-rc2 | Release candidate | 1073741859 | 7 Jun 2021 |
| 1.17-rc1 | Release candidate | 1073741858 | 4 Jun 2021 |
| 1.17-pre5 | Pre-release | 1073741857 | 3 Jun 2021 |
| 1.17-pre4 | Pre-release | 1073741856 | 2 Jun 2021 |
| 1.17-pre3 | Pre-release | 1073741855 | 1 Jun 2021 |
| 1.17-pre2 | Pre-release | 1073741854 | 31 May 2021 |
| 1.17-pre1 | Pre-release | 1073741853 | 27 May 2021 |
Questions about Minecraft 1.17.1-pre2
What Java version does Minecraft 1.17.1-pre2 require?
Minecraft 1.17.1-pre2 requires Java 16 or newer. Mojang publishes this in the version metadata, so an older runtime refuses to start it.
What protocol version does Minecraft 1.17.1-pre2 use?
Minecraft 1.17.1-pre2 speaks protocol 1073741861. A client and a server can only connect when their protocol numbers match.
Where do I download the Minecraft 1.17.1-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.