A server needs the Java its Minecraft version was built for. The wrong one does not start, and the error rarely says why.
On FadeHost the Java follows the version: switch a server from one release to another and it starts with the right Java on its own. What Java errors look like.
Minecraft version
Java
26.1 to 26.3
Java 25
1.20.5 to 1.21.11
Java 21
1.18 to 1.20.4
Java 17
1.17 to 1.17.1
Java 16
1.7.2 to 1.16.5
Java 8
Every release
The game updates, newest first, each with the patches that followed it.
Wilderness Bound added the autumn-themed dappled forest biome with poplar trees, shelf mushrooms and red shrubs, plus abandoned camps that generate across 16 biomes.
New dappled forest biome with poplar trees in autumn colors
Abandoned camp structure generates across 16 biome types
Wool and concrete stairs and slabs in all 16 colors
Cushions are a sittable furniture entity in 16 colors
Chaos Cubed added sulfur and cinnabar building sets, the sulfur caves underground biome, and sulfur cubes, passive mobs that absorb blocks and take on their physics.
New sulfur caves underground biome with sulfur and cinnabar
Sulfur cubes absorb blocks and change physics to match
Sulfur and cinnabar building sets with stairs, slabs and walls
Potent sulfur creates geysers under water and magma blocks
The Garden Awakens added the pale garden biome with pale oak trees, resin blocks and the creaking, a hostile mob that freezes while a player looks at it.
New pale garden biome with pale oak trees and moss
The creaking, a hostile mob tied to a creaking heart block
Full pale oak wood set plus resin blocks and resin bricks
Eyeblossom flowers open and close with the day cycle
Minecraft: Java Edition 26.3, released on September 15, 2026. The update is called Wilderness Bound.
Why is it Minecraft 26 and not 1.22?
Since 26.1 the number is year.drop.hotfix: the first part is the year, the second counts the game drops of that year, and a third marks a hotfix. 26.1 was the first release on it; the release before it was 1.21.11.
Which Java version does a Minecraft server need?
It depends on the Minecraft version: 26.1 to 26.3 needs Java 25; 1.20.5 to 1.21.11 needs Java 21; 1.18 to 1.20.4 needs Java 17; 1.17 to 1.17.1 needs Java 16; 1.7.2 to 1.16.5 needs Java 8. On FadeHost the server starts with the right Java for its version on its own.
Can I run a server on an older Minecraft version?
Yes. Every release listed here can be picked when you create a server, and an existing server can be switched from the panel. Older versions are common for modpacks, which stay on the version they were built for, and for PvP servers.
Can a world go back to an older version?
No. A world opened in a newer version is converted and cannot be opened in an older one again. Take a backup before you update, and keep it until you are sure.