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Leaf for Minecraft 1.21.6

26 builds of Leaf published for Minecraft 1.21.6, newest first. Every download links to the project’s own release.

Latest build
#29
Java required
Java 21 or newer
Builds
26
Newest published
21 Jul 2025

Leaf builds for 1.21.6

Newest first. The checksum is the project's own, where it publishes one.

All versions
BuildChannelPublishedSizeDownload
#29release21 Jul 202565.7 MBserver.jar
#28release1 Jul 202565.7 MBserver.jar
#27release1 Jul 202565.7 MBserver.jar
#26release30 Jun 202565.7 MBserver.jar
#23beta29 Jun 202565.8 MBserver.jar
#22beta29 Jun 202565.7 MBserver.jar
#21beta29 Jun 202565.7 MBserver.jar
#20beta29 Jun 202565.7 MBserver.jar
#19beta28 Jun 202565.7 MBserver.jar
#18beta27 Jun 202565.7 MBserver.jar
#17beta27 Jun 202565.7 MBserver.jar
#16beta26 Jun 202565.7 MBserver.jar
#15beta26 Jun 202565.7 MBserver.jar
#14beta25 Jun 202565.7 MBserver.jar
#13beta25 Jun 202565.7 MBserver.jar
#12beta25 Jun 202565.7 MBserver.jar
#11beta25 Jun 202565.7 MBserver.jar
#10beta25 Jun 202565.7 MBserver.jar
#9beta23 Jun 202565.7 MBserver.jar
#8beta22 Jun 202565.7 MBserver.jar
#7beta22 Jun 202565.7 MBserver.jar
#6beta19 Jun 202565.7 MBserver.jar
#5beta18 Jun 202564.9 MBserver.jar
#4beta17 Jun 202564.9 MBserver.jar
#3beta17 Jun 202564.9 MBserver.jar
#2beta16 Jun 202564.9 MBserver.jar

Leaf on 1.21.6: common questions

Does Leaf support Minecraft 1.21.6?

Yes. 26 builds have been published for 1.21.6, the newest being build 29. This is not a declared claim: each build below is a real file the project released for this version.

Which Java version do I need for Leaf 1.21.6?

Java 21 or newer. The requirement comes from Minecraft 1.21.6 itself rather than from Leaf, so it applies to any server software running this version. A newer Java than that is fine.

Which Leaf build should I run on 1.21.6?

The newest one, build 29, published 12 mo ago. Later builds for the same Minecraft version are bug fixes and performance work, so there is rarely a reason to run an older one deliberately.

Is this download official?

Yes. Every link points at Leaf's own release or API. MCReference does not mirror, re-host or repackage a jar; where the project publishes a SHA-256 we show it so you can verify the file you got.