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Sponge for Minecraft 1.21.5

41 builds of Sponge published for Minecraft 1.21.5, newest first. Every download links to the project’s own release.

Latest build
#41
Java required
Java 21 or newer
Builds
41
Newest published
28 Jul 2026

Sponge builds for 1.21.5

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

All versions
BuildChannelPublishedSizeDownload
#41beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.1-RC2561-universal.jar
#40beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.1-RC2536-universal.jar
#39beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.1-RC2503-universal.jar
#38release28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-universal.jar
#37beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2501-universal.jar
#36beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2466-universal.jar
#35beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2465-universal.jar
#34beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2440-universal.jar
#33beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2431-universal.jar
#32beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2429-universal.jar
#31beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2428-universal.jar
#30beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2420-universal.jar
#29beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2416-universal.jar
#28beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2397-universal.jar
#27beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2377-universal.jar
#26beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2364-universal.jar
#25beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2357-universal.jar
#24beta28 Jul 20268.2 MBspongevanilla-1.21.5-15.0.0-RC2353-universal.jar
#23beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2351-universal.jar
#22beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2338-universal.jar
#21beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2333-universal.jar
#20beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2322-universal.jar
#19beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2303-universal.jar
#18beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2264-universal.jar
#17beta28 Jul 20268.1 MBspongevanilla-1.21.5-15.0.0-RC2253-universal.jar
#16beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2222-universal.jar
#15beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2218-universal.jar
#14beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2210-universal.jar
#13beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2205-universal.jar
#12beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2201-universal.jar
#11beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2193-universal.jar
#10beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2181-universal.jar
#9beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2180-universal.jar
#8beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2177-universal.jar
#7beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2176-universal.jar
#6beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2173-universal.jar
#5beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2172-universal.jar
#4beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2171-universal.jar
#3beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2170-universal.jar
#2beta28 Jul 20268.6 MBspongevanilla-1.21.5-15.0.0-RC2153-universal.jar
#1beta27 Jul 20268.6 MBspongevanilla-1.21.5-15.0.1-RC2561-universal.jar

Sponge on 1.21.5: common questions

Does Sponge support Minecraft 1.21.5?

Yes. 41 builds have been published for 1.21.5, the newest being build 41. 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 Sponge 1.21.5?

Java 21 or newer. The requirement comes from Minecraft 1.21.5 itself rather than from Sponge, so it applies to any server software running this version. A newer Java than that is fine.

Which Sponge build should I run on 1.21.5?

The newest one, build 41, published 4 h 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 Sponge'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.