Minecraft 1.21 Server Status: Which Software Is Out?
Minecraft 1.21 was released on 13 Jun 2024. 14 of 17 server programs tracked here have a 1.21 build so far. Updated automatically from each project's API, last check 28 Oct 2026, 12:47 UTC.
| Software | 1.21 build | Channel | First seen / date | Previews |
|---|---|---|---|---|
| Vanilla | available | stable | 13 Jun 2024 | — |
| Paper | 130 | stable | 10 Aug 2024 | — |
| Spigot | 4289 | stable | 7 Aug 2024 | — |
| CraftBukkit | not yet | — | — | — |
| Purpur | 2284 | stable | 10 Aug 2024 | — |
| Folia | not yet | — | — | — |
| Pufferfish | 8 | stable | 13 Aug 2024 | — |
| Leaves | 46 | stable | 12 Aug 2024 | — |
| Leaf | available | stable | 11 Aug 2024 | — |
| Fabric | available | stable | 31 Jul 2026 | 11 preview builds |
| Quilt | available | stable | 31 Jul 2026 | 11 preview builds |
| Forge | 51.0.33 | stable | 8 Aug 2024 | — |
| NeoForge | 21.0.167 | stable | 8 Aug 2024 | — |
| SpongeVanilla | 1.21.11-18.0.0-RC2761 | stable | 13 Jun 2024 | — |
| Mohist | not yet | — | — | — |
| Arclight | 1.0.2-SNAPSHOT-a3e299… | stable | 25 Oct 2026 | — |
| Magma | 21.0.7-beta | stable | 13 Jun 2024 | — |
"Experimental" means the project has published builds but not yet marked one stable — test before moving a live server. Plugins and mods usually need their own updates too. See how to update safely.