Iris - Dimension Engine

Before updating Iris, it is always recommended to back up your world and its Iris data. To use the new features and structures, download the updated data packs. You can then create a new world, or expand your existing world with newly generated chunks.

Changes & Fixes

• Added update notifications that check for new GitHub releases upon login or manually with /volmit plugins updates
• Added the iris.update permission node and a configuration option to toggle this check
• Updated translations for the update notifications.
• Fixed block breaking being cancelled while Iris loads saved biome information.
• Custom block drops now use the biome definitions that originally generated the terrain.
• Fixed missing or duplicated fallback drops during failed biome reads and world shutdown.
• Tree felling now preserves the original tool when calculating fallback drops.
• Fixed decoration and cave placement around blended terrain boundaries.
• Added studio.blendChanges configuration option to control terrain blending after Studio pack edits.
• Improved Studio hotload recovery and cleanup when closing Studio worlds.
• Fixed pregeneration memory budgeting on Docker and other Linux containers to respect container limits.
• Reduced concurrent generation and retained generation data according to available memory, reserving headroom for other server memory use.
• Pregeneration now pauses new requests when container memory usage reaches 90% and resumes below 80%.
• Fixed PlaceholderAPI integration when the dependency is enabled or disabled after Iris starts.
• Fixed automatic Spigot timeout and Paper watchdog changes saving to the wrong configuration paths.
• Optional Client/Server Mod Updates (CurseForge / Modrinth)
• Fixed pregeneration waiting for resources after the server begins shutting down.
• Fixed mod packaging to exclude Bukkit-only dependency bootstrap classes.