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Saturn Client 0.1.1-beta
StableRelease / build (release) Successful in 18m36sreleased this
2026-09-25 16:37:03 +00:00 | 94 commits to master since this releaseSupports Minecraft 1.21.4 – 1.21.11, one jar per version. Requires Fabric Loader and Fabric API.
⚠️ Update required
Signing in to Saturn has changed. 0.1.0-beta2 and older can no longer connect to the Saturn server, so cosmetics and emotes won't work until you update to this version.
Security
- Your Minecraft access token no longer leaves your computer for Saturn's server. Saturn now signs you in the way vanilla online-mode servers do: your client proves who you are to Mojang, and Saturn's server asks Mojang to confirm it (#7).
New
- Update notices. Before connecting, the client checks which versions the server supports. An outdated but still accepted version shows a warning and connects anyway. An unsupported version shows a warning and doesn't connect.
- Automatic reconnect. If the connection to the Saturn server drops (a network blip or a server update), the client reconnects on its own, retrying every 1 s up to every 60 s. You no longer need to restart Minecraft (#4).
Fixes
- Tab list: server rank prefixes, name colours and team formatting are shown again. They were previously lost for every player, not just Saturn users (#3).
- Performance: players who don't use Saturn are no longer looked up from the server on every frame. That caused constant server traffic and a growing backlog that delayed other players' cosmetics (#2).
- Stability: fixed player and cosmetic data being changed from several threads at once, which could crash the game (#6).
- No more hangs: every request to the server now times out after 10 seconds instead of waiting forever. A stuck request used to stop all other players' cosmetics from loading (#5).
- Smaller download: the title-screen panorama was optimised, so each version's jar is about 45 MB instead of about 120 MB. It also uses much less GPU memory on the title screen.
- The connection library (session-java 0.2.0) no longer loses fast responses, fails concurrent requests, or leaves requests hanging after a disconnect.
Also since 0.1.0-beta2
- Added support for Minecraft 1.21.7, 1.21.8, 1.21.9, 1.21.10 and 1.21.11
- Reworked cloak physics
- Hat renderer and End shader
- Nametag updates
- Sign-in timeout fixes
Downloads