Paper for Minecraft 1.21.9
20 builds of Paper published for Minecraft 1.21.9, newest first. Every download links to the project’s own release.
- Latest build
- #59
- Java required
- Java 21 or newer
- Builds
- 20
- Newest published
- 7 Oct 2025
Paper builds for 1.21.9
Newest first. The checksum is the project's own, where it publishes one.
| Build | Channel | Published | Size | Download |
|---|---|---|---|---|
| #59 | alpha | 7 Oct 2025 | 51.0 MB | paper-1.21.9-59.jaraec002e77c75… |
| #58 | alpha | 7 Oct 2025 | 51.0 MB | paper-1.21.9-58.jar3787df5df3c4… |
| #57 | alpha | 6 Oct 2025 | 51.0 MB | paper-1.21.9-57.jar3e5366702a50… |
| #56 | alpha | 6 Oct 2025 | 51.0 MB | paper-1.21.9-56.jar44696fd92968… |
| #55 | alpha | 6 Oct 2025 | 51.0 MB | paper-1.21.9-55.jarcbe21cab095f… |
| #53 | alpha | 5 Oct 2025 | 50.1 MB | paper-1.21.9-53.jard60c1e52ea1e… |
| #52 | alpha | 5 Oct 2025 | 50.1 MB | paper-1.21.9-52.jar77af44ef63ae… |
| #51 | alpha | 5 Oct 2025 | 50.1 MB | paper-1.21.9-51.jarb2946eeeea59… |
| #50 | alpha | 5 Oct 2025 | 50.1 MB | paper-1.21.9-50.jar7bbbd3fbcf35… |
| #49 | alpha | 4 Oct 2025 | 50.1 MB | paper-1.21.9-49.jar4cac1132df2c… |
| #48 | alpha | 4 Oct 2025 | 50.1 MB | paper-1.21.9-48.jarf503a22a242e… |
| #47 | alpha | 3 Oct 2025 | 50.1 MB | paper-1.21.9-47.jar18ba9d325cee… |
| #46 | alpha | 3 Oct 2025 | 50.1 MB | paper-1.21.9-46.jar211078ba7fcc… |
| #45 | alpha | 2 Oct 2025 | 50.1 MB | paper-1.21.9-45.jar3f67ba5e8f29… |
| #44 | alpha | 2 Oct 2025 | 50.1 MB | paper-1.21.9-44.jareed93872da7d… |
| #42 | alpha | 2 Oct 2025 | 50.1 MB | paper-1.21.9-42.jar6429313207d8… |
| #41 | alpha | 1 Oct 2025 | 50.1 MB | paper-1.21.9-41.jar617655c7b893… |
| #40 | alpha | 1 Oct 2025 | 50.1 MB | paper-1.21.9-40.jarb36e36508e8d… |
| #38 | alpha | 1 Oct 2025 | 50.1 MB | paper-1.21.9-38.jar55785f1c9083… |
| #37 | alpha | 30 Sept 2025 | 50.1 MB | paper-1.21.9-37.jar9a51088d04ec… |
Paper on 1.21.9: common questions
Does Paper support Minecraft 1.21.9?
Yes. 20 builds have been published for 1.21.9, the newest being build 59. 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 Paper 1.21.9?
Java 21 or newer. The requirement comes from Minecraft 1.21.9 itself rather than from Paper, so it applies to any server software running this version. A newer Java than that is fine.
Which Paper build should I run on 1.21.9?
The newest one, build 59, published 10 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 Paper'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.