Minecraft 1.17.1
ReleaseLegacy 1.xMinecraft 1.17.1 is a Java Edition full release released on 6 Jul 2021 under the classic 1.x numbering. Mojang lists Java 16 as the required runtime. It speaks network protocol 756.
Minecraft: Java Edition 1.17.1
We're now releasing Minecraft: Java Edition 1.17.1. This release changes some behaviours of the features added in Caves & Cliffs: Part I, and it also fixes a few bugs and critical issues. Changes in 1.17.1 Blue axolotls can now only be obtained throu
- Released
- 6 Jul 2021
- Requires Java
- Java 16+
- Protocol version
- 756
- Data version
- 2730
- Version group
- 1.17
- Numbering
- Legacy (1.x)
- Server software
- 7 with builds
- Position
- #586 of 903
Official downloads
Served by Mojang. Verify the checksum before running anything.
| File | Size | SHA-1 | Download |
|---|---|---|---|
| Server jar | 41.6 MB | a16d67e5807f… | piston-data.mojang.com ↗ |
| Client jar | 18.6 MB | 8d9b65467c79… | piston-data.mojang.com ↗ |
The catalogue on 1.17.1
Projects that name 1.17.1 in their own release metadata. Follow any of these to the full filtered list.
What runs on 1.17.1
Builds are counted from each project's own API; declared support comes from the loader's metadata.
| Software | Latest build | Published | Checksum | Download |
|---|---|---|---|---|
| Arclight | #1 | 1 Mar 2024 | Not published | jar ↗ |
| LooHP Limbo | #1 | 28 Nov 2021 | Not published | jar ↗ |
| Paper | #411 | 14 Apr 2022 | 6cc1ee2f9425… | jar ↗ |
| Pufferfish | #22 | 4 Apr 2022 | Not published | jar ↗ |
| Purpur | #1428 | 23 Nov 2021 | Not published | jar ↗ |
| Spigot | #3284 | 21 Nov 2021 | Not published | jar ↗ |
| Sponge | #38 | 28 Jul 2026 | Not published | jar ↗ |
| Pufferfish | #22 | Not build based | inferred | loader |
| Spigot | #3284 | Not build based | inferred | loader |
| Arclight | 1.0.2-a79a6a5d-forge | Not build based | inferred | loader |
| LooHP Limbo | #1 | Not build based | inferred | loader |
| Sponge | 1.17.1-rc2-9.0.0-RC725 | Not build based | inferred | loader |
| Minecraft Forge | 37.1.1 | 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 1.17
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
What Java version does Minecraft 1.17.1 require?
Minecraft 1.17.1 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 use?
Minecraft 1.17.1 speaks protocol 756. A client and a server can only connect when their protocol numbers match.
Where do I download the Minecraft 1.17.1 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 1.17.1?
Arclight, LooHP Limbo, Paper, Pufferfish, Purpur, Spigot, Sponge publish builds for 1.17.1. 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.