Minecraft 1.21.9 Server Status: Which Software Is Out?
Minecraft 1.21.9 was released on 30 Sep 2025. 9 of 17 server programs tracked here have a 1.21.9 build so far. Updated automatically from each project's API, last check 28 Oct 2026, 12:47 UTC.
| Software | 1.21.9 build | Channel | First seen / date | Previews |
|---|---|---|---|---|
| Vanilla | available | stable | 30 Sep 2025 | — |
| Paper | 59 | experimental | 7 Oct 2025 | 4 preview builds |
| Spigot | 4540 | stable | 7 Oct 2025 | — |
| CraftBukkit | not yet | — | — | — |
| Purpur | 2505 | stable | 7 Oct 2025 | — |
| Folia | not yet | — | — | — |
| Pufferfish | not yet | — | — | — |
| Leaves | not yet | — | — | — |
| Leaf | not yet | — | — | — |
| Fabric | available | stable | 31 Jul 2026 | 14 preview builds |
| Quilt | available | stable | 31 Jul 2026 | 14 preview builds |
| Forge | 59.0.5 | stable | 6 Oct 2025 | — |
| NeoForge | 21.9.16-beta | experimental | 7 Oct 2025 | — |
| SpongeVanilla | 1.21.9-17.0.0-RC2374 | stable | 30 Sep 2025 | 6 preview builds |
| Mohist | not yet | — | — | — |
| Arclight | not yet | — | — | — |
| Magma | not yet | — | — | — |
"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.