ASPaper for Minecraft 1.21.5
5 builds of ASPaper published for Minecraft 1.21.5, newest first. Every download links to the project’s own release.
- Latest build
- #16671
- Java required
- Java 21 or newer
- Builds
- 5
- Newest published
- 11 Jun 2025
ASPaper builds for 1.21.5
Newest first. The checksum is the project's own, where it publishes one.
| Build | Channel | Published | Size | Download |
|---|---|---|---|---|
| #16671 | beta | 11 Jun 2025 | 56.3 MB | server.jar |
| #16664 | beta | 11 Jun 2025 | 56.3 MB | server.jar |
| #16604 | beta | 3 Apr 2025 | 55.9 MB | server.jar |
| #16603 | beta | 2 Apr 2025 | 55.8 MB | server.jar |
| #16602 | beta | 2 Apr 2025 | 55.8 MB | server.jar |
ASPaper on 1.21.5: common questions
Does ASPaper support Minecraft 1.21.5?
Yes. 5 builds have been published for 1.21.5, the newest being build 16671. 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 1.21.5?
Java 21 or newer. The requirement comes from Minecraft 1.21.5 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 1.21.5?
The newest one, build 16671, published 14 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.