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ASPaper for Minecraft 1.21.3

12 builds of ASPaper published for Minecraft 1.21.3, newest first. Every download links to the project’s own release.

Latest build
#16529
Java required
Java 21 or newer
Builds
12
Newest published
20 Dec 2024

ASPaper builds for 1.21.3

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

All versions
BuildChannelPublishedSizeDownload
#16529release20 Dec 202453.9 MBserver.jar
#16525release15 Dec 202453.9 MBserver.jar
#16519release15 Dec 202453.9 MBserver.jar
#16511release13 Dec 202453.9 MBserver.jar
#16507release10 Dec 202453.9 MBserver.jar
#16505release10 Dec 202453.9 MBserver.jar
#16504release10 Dec 202453.9 MBserver.jar
#16503release10 Dec 202453.9 MBserver.jar
#16502release10 Dec 202453.9 MBserver.jar
#16501release10 Dec 202453.9 MBserver.jar
#16488release5 Dec 202453.9 MBserver.jar
#16421release10 Nov 202453.6 MBserver.jar

ASPaper on 1.21.3: common questions

Does ASPaper support Minecraft 1.21.3?

Yes. 12 builds have been published for 1.21.3, the newest being build 16529. 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 ASPaper 1.21.3?

Java 21 or newer. The requirement comes from Minecraft 1.21.3 itself rather than from ASPaper, so it applies to any server software running this version. A newer Java than that is fine.

Which ASPaper build should I run on 1.21.3?

The newest one, build 16529, published 19 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 ASPaper'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.