Pre-releaseDownload Minecraft 26.3-pre-1 Server
The Minecraft 26.3-pre-1 snapshot server JAR, direct from Mojang. Release date, file size, checksum and Java requirement below.
Snapshot for Minecraft 26.3
Java required
Java 25
Released
Sep 1, 2026
File size
59 MB
Channel
Pre-release
SHA-1 checksum
1e6e3a06cc13cf6975a0921b272ab544798d4b06
⚡ Not for a production server
Back up your world before you run this build. A snapshot can convert a world to a newer data format that an older release refuses to load, plugins and mods do not work on it, and anything in it can change or disappear in the next snapshot.
What's new in Minecraft 26.3-pre-1
Minecraft 26.3-pre-1 was released on Sep 1, 2026.
- Changes
- 3
- Technical changes
- 2
- Bug fixes
- 41
Figures taken from the official release notes for this version.
How to run a snapshot server
Exactly like any vanilla server. Put the JAR in an empty folder on its own, run it once, accept the EULA, then start it again. Keep it in a separate folder from your release server so the two never share a world.
Start script (Linux/macOS)
java -Xms2G -Xmx4G -jar server.jar noguiThe first launch stops immediately and writes an eula.txt file. Open it, set eula=true, and start the server again. That line is your agreement to Mojang's EULA and is required to run any Minecraft server.
2 GB boots a snapshot for a couple of players. For a real player count, size it with the Minecraft RAM calculator