Minecraft 1.1
ReleaseLegacy 1.xMinecraft 1.1 is a Java Edition full release released on 11 Jan 2012 under the classic 1.x numbering. Mojang lists Java 8 as the required runtime. It speaks network protocol 23.
- Released
- 11 Jan 2012
- Requires Java
- Java 8+
- Protocol version
- 23
- Data version
- -78
- Version group
- 1.1
- Numbering
- Legacy (1.x)
- Server software
- 1 with builds
- Position
- #63 of 903
Official downloads
Served by Mojang. Verify the checksum before running anything.
| File | Size | SHA-1 | Download |
|---|---|---|---|
| Client jar | 3.7 MB | f690d4136b00… | piston-data.mojang.com ↗ |
Mojang published no server jar for this version. Dedicated servers start at 1.2.5.
The catalogue on 1.1
Projects that name 1.1 in their own release metadata. Follow any of these to the full filtered list.
What runs on 1.1
Builds are counted from each project's own API; declared support comes from the loader's metadata.
| Software | Latest build | Published | Checksum | Download |
|---|---|---|---|---|
| NanoLimbo | #1 | 28 Nov 2020 | Not published | jar ↗ |
| NanoLimbo | 1.1 | Not build based | inferred | loader |
| Minecraft Forge | 1.3.4.29 | Not build based | declared | loader |
Everything in 1.1
1 version in this group.
| Version | Type | Protocol | Released |
|---|---|---|---|
| 1.1 | Release | 23 | 11 Jan 2012 |
Questions about Minecraft 1.1
What Java version does Minecraft 1.1 require?
Minecraft 1.1 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 1.1 use?
Minecraft 1.1 speaks protocol 23. A client and a server can only connect when their protocol numbers match.
Which server software supports Minecraft 1.1?
NanoLimbo publish builds for 1.1. 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.