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ASPaper for Minecraft 1.21.4

62 builds of ASPaper published for Minecraft 1.21.4, newest first. Every download links to the project’s own release.

Latest build
#16709
Java required
Java 21 or newer
Builds
62
Newest published
15 Jul 2025

ASPaper builds for 1.21.4

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

All versions
BuildChannelPublishedSizeDownload
#16709release15 Jul 202556.3 MBserver.jar
#16688release29 Jun 202556.3 MBserver.jar
#16662release7 Jun 202556.3 MBserver.jar
#16661release7 Jun 202556.3 MBserver.jar
#16660release7 Jun 202556.3 MBserver.jar
#16658release5 Jun 202556.3 MBserver.jar
#16657release5 Jun 202556.3 MBserver.jar
#16656release18 May 202556.3 MBserver.jar
#16655release18 May 202556.3 MBserver.jar
#16649release21 Apr 202556.3 MBserver.jar
#16648release21 Apr 202556.3 MBserver.jar
#16647release21 Apr 202556.3 MBserver.jar
#16646release21 Apr 202556.3 MBserver.jar
#16644release20 Apr 202556.3 MBserver.jar
#16641release20 Apr 202556.3 MBserver.jar
#16640release20 Apr 202556.3 MBserver.jar
#16639release20 Apr 202556.3 MBserver.jar
#16631release20 Apr 202556.3 MBserver.jar
#16627release20 Apr 202556.3 MBserver.jar
#16626release20 Apr 202556.3 MBserver.jar
#16624release20 Apr 202556.3 MBserver.jar
#16623release20 Apr 202556.3 MBserver.jar
#16622release20 Apr 202556.3 MBserver.jar
#16619release20 Apr 202556.3 MBserver.jar
#16618release20 Apr 202556.3 MBserver.jar
#16617release20 Apr 202556.3 MBserver.jar
#16616release20 Apr 202556.3 MBserver.jar
#16610release12 Apr 202556.3 MBserver.jar
#16609release12 Apr 202556.3 MBserver.jar
#16606release8 Apr 202556.2 MBserver.jar
#16605release8 Apr 202556.2 MBserver.jar
#16598release26 Mar 202556.2 MBserver.jar
#16597release26 Mar 202556.2 MBserver.jar
#16596release26 Mar 202556.2 MBserver.jar
#16593release23 Mar 202556.2 MBserver.jar
#16592release23 Mar 202556.2 MBserver.jar
#16591release16 Mar 202556.2 MBserver.jar
#16590release16 Mar 202556.2 MBserver.jar
#16589release15 Mar 202556.2 MBserver.jar
#16588release15 Mar 202556.2 MBserver.jar
#16587release15 Mar 202556.2 MBserver.jar
#16586release15 Mar 202556.2 MBserver.jar
#16585release15 Mar 202556.2 MBserver.jar
#16584release15 Mar 202556.2 MBserver.jar
#16583release15 Mar 202556.2 MBserver.jar
#16580release15 Mar 202556.2 MBserver.jar
#16579release15 Mar 202556.2 MBserver.jar
#16578release15 Mar 202556.2 MBserver.jar
#16577release15 Mar 202556.2 MBserver.jar
#16576release15 Mar 202556.2 MBserver.jar
#16575release15 Mar 202556.2 MBserver.jar
#16574release15 Mar 202556.2 MBserver.jar
#16573release15 Mar 202556.2 MBserver.jar
#16572release15 Mar 202556.2 MBserver.jar
#16571release15 Mar 202556.2 MBserver.jar
#16570release15 Mar 202556.2 MBserver.jar
#16569release15 Mar 202556.2 MBserver.jar
#16568release15 Mar 202556.2 MBserver.jar
#16567release15 Mar 202556.2 MBserver.jar
#16566release14 Mar 202556.2 MBserver.jar
#16523release15 Dec 202454.0 MBserver.jar
#16522release15 Dec 202454.0 MBserver.jar

ASPaper on 1.21.4: common questions

Does ASPaper support Minecraft 1.21.4?

Yes. 62 builds have been published for 1.21.4, the newest being build 16709. 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 1.21.4?

Java 21 or newer. The requirement comes from Minecraft 1.21.4 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 1.21.4?

The newest one, build 16709, 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 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.