PaperDownload Paper 1.21.11-rc1 Server
The Paper server JAR for Minecraft 1.21.11-rc1, direct from the official source. Build details, release date and Java requirements below.
Java required
Java 21
Released
Dec 4, 2025
Build
19
File size
51 MB
Channel
Experimental
SHA-1 checksum
bfd57d33c550fa70a493fc00f30eac275dc4a71fa7f8eaa990ca240ef7024f02
Experimental
1.21.11-rc1
Build 19
Download experimentalGet a Paper 1.21.11-rc1 server online
No Java install, no port forwarding. Pick Paper 1.21.11-rc1 in our panel and your friends can join right away.
See server plansWhat's new in Minecraft 1.21.11-rc1
The newest Paper build for Minecraft 1.21.11-rc1 is build 19, published on Dec 4, 2025.
- Builds published
- 2
- Upstream commits
- 2
Figures taken from the official release notes for this version.
Setup
Start script (Linux/macOS)
java -Xms4G -Xmx4G --add-modules=jdk.incubator.vector -XX:+UseG1GC -jar paper.jar noguiStart script (Windows)
java -Xms4G -Xmx4G --add-modules=jdk.incubator.vector -XX:+UseG1GC -jar paper.jar --nogui
pauseOther Minecraft 1.21 builds of Paper
Other builds in the 1.21.x line. The newest stable is selected by default above.