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Group Chat

Chat with your whole group at once, without the rest of the server seeing. Create groups, invite friends, message everyone together, plus DMs and offline delivery so nothing gets missed. Paper & Fabric.
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groupchat-fabric-2.0.0.jar

File namegroupchat-fabric-2.0.0.jar
Uploader
ThermedWolfThermedWolf
Uploaded
Sep 17, 2026
Downloads
17
Size
65.2 KB
Mod Loaders
Fabric
File ID
8901852
Type
R
Release
Supported game versions
  • 26.3
DownloadInstall Via App

Curse Maven Snippet

Fabric

modImplementation "curse.maven:group-chat-1610242:8901852"

Learn more about Curse Maven

What's new

GroupChat 2.0 is here — history, toggle chat, and a full hardening pass. This is everything that landed since the original 1.0 Modrinth release (now tracked in git).

Requires Minecraft 26.3+ • JDK 26 • Fabric needs Fabric API

What's New

★ Group History (last 5 messages) Every group message is now saved for every member in history.json. Pull it anytime: /group history • /group <group> history [1-5] • /gmsg history [group] • gm/gmoffline aliases too. If you're only in one group you can omit the name.

★ Toggle Chat Mode Lock your chat to a group so you don't have to type /gmsg every line: /group toggle mySquad or /gmsg toggle — every chat line goes to that group until you toggle off, type cancel, or log out.

★ Smart selection for multi-group players In multiple groups and forget the name? /group toggle or /group history without a group now prompts you in chat — just type the group name or cancel.

★ Fabric fix — groups no longer vanish Fabric now saves to the correct FabricLoader.getGameDir()/groupchat with auto-migration from old paths. Paper was already correct.

★ Startup visibility Both Paper and Fabric log the data folder and loaded group count on enable.

Fixes

  • Fabric restart persistence (canonical gameDir + migration)
  • Paper logging parity with Fabric

Security & Reliability (10 fixes)

  • Atomic saves (tmp → ATOMIC_MOVE), auto-backup of corrupt JSON, strict validation on load
  • Mailbox limits: 500 chars per message, 200 messages per player, § sanitization, 30-day expiry prune
  • /unread now paginated: /unread [page|clear]
  • /group members requires membership, invite duplicate check
  • New permissions: groupchat.use (default true) on all Paper commands, groupchat.admin (op) reserved
  • Name↔UUID cache to avoid Bukkit lookup spam
  • Full audit logging for create/delete/invite/accept/decline/leave/kick and owner transfers

Technical

  • Retargeted to Minecraft 26.3, JDK 26, Loom 1.18.2, Loader 0.19.5, Paper API 26.3.build.8-alpha
  • Core now includes GroupHistoryStore, GroupHistoryEntry, ToggleSession; history+toggle cleaned on leave/kick/delete.

Full changelog with commit hashes: https://github.com/ThermedWolf/group-chat/releases/tag/v2.0.0

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