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What Java version does Minecraft 26.3 need?

Java 25

Minecraft 26.3 was released on 2026-09-15. Mojang's version file lists Java 25 for it, for both the game and a server.

FabricYes
ForgeYes
NeoForgeYes
Top mods listing 26.3296 of 500

See which Java you have:

java -version

Download Java 25 from Adoptium