Minecraft a1.2.3_04
AlphaLegacy 1.xMinecraft a1.2.3_04 is a Java Edition alpha build released on 25 Nov 2010 under the classic 1.x numbering. Mojang lists Java 8 as the required runtime.
- Released
- 25 Nov 2010
- Requires Java
- Java 8+
- Protocol version
- Unknown
- Data version
- Unknown
- Version group
- alpha
- Numbering
- Legacy (1.x)
- Server software
- 0 with builds
- Position
- #32 of 903
Official downloads
Served by Mojang. Verify the checksum before running anything.
| File | Size | SHA-1 | Download |
|---|---|---|---|
| Client jar | 1.1 MB | 7f60cb9d0d40… | piston-data.mojang.com ↗ |
Mojang published no server jar for this version. Dedicated servers start at 1.2.5.
The catalogue on a1.2.3_04
Projects that name a1.2.3_04 in their own release metadata. Follow any of these to the full filtered list.
Everything in alpha
25 versions in this group.
| Version | Type | Protocol | Released |
|---|---|---|---|
| a1.2.6 | Alpha | Unknown | 2 Dec 2010 |
| a1.2.5 | Alpha | Unknown | 30 Nov 2010 |
| a1.2.4_01 | Alpha | Unknown | 29 Nov 2010 |
| a1.2.3_04 | Alpha | Unknown | 25 Nov 2010 |
| a1.2.3_02 | Alpha | Unknown | 24 Nov 2010 |
| a1.2.3_01 | Alpha | Unknown | 23 Nov 2010 |
| a1.2.3 | Alpha | Unknown | 23 Nov 2010 |
| a1.2.2b | Alpha | Unknown | 9 Nov 2010 |
| a1.2.2a | Alpha | Unknown | 9 Nov 2010 |
| a1.2.1_01 | Alpha | Unknown | 4 Nov 2010 |
| a1.2.1 | Alpha | Unknown | 4 Nov 2010 |
| a1.2.0_02 | Alpha | Unknown | 3 Nov 2010 |
| a1.2.0_01 | Alpha | Unknown | 30 Oct 2010 |
| a1.2.0 | Alpha | Unknown | 29 Oct 2010 |
| a1.1.2_01 | Alpha | Unknown | 22 Sept 2010 |
| a1.1.2 | Alpha | Unknown | 19 Sept 2010 |
| a1.1.0 | Alpha | Unknown | 12 Sept 2010 |
| a1.0.17_04 | Alpha | Unknown | 22 Aug 2010 |
| a1.0.17_02 | Alpha | Unknown | 19 Aug 2010 |
| a1.0.16 | Alpha | Unknown | 11 Aug 2010 |
| a1.0.15 | Alpha | Unknown | 3 Aug 2010 |
| a1.0.14 | Alpha | Unknown | 29 Jul 2010 |
| a1.0.11 | Alpha | Unknown | 22 Jul 2010 |
| a1.0.5_01 | Alpha | Unknown | 12 Jul 2010 |
| a1.0.4 | Alpha | Unknown | 8 Jul 2010 |
Questions about Minecraft a1.2.3_04
What Java version does Minecraft a1.2.3_04 require?
Minecraft a1.2.3_04 requires Java 8 or newer. Mojang publishes this in the version metadata, so an older runtime refuses to start it.
Go deeper
Full compatibility for a1.2.3_04Server software, loaders and the Java requirement in one placeJava 8 downloadsVerified Temurin builds for Windows, macOS and LinuxEverything in alphaSnapshots, pre-releases and candidates in this groupHow Minecraft version numbers workWhy 1.21 was followed by 26.1, and what happened to 1.22
Metadata from Mojang’s official version manifest. Protocol and data versions from the PrismarineJS minecraft-data project.