JCM v2.1.0 for MTR 4.0.2 has been released!
New
- Add Help Line (Tseung Kwan O Line Type)
- The Script Debug Overlay now allows switching between sources (MTR/JCM) to provide a more clutter-free view.
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- Default keybind is [ and ], can be changed in Minecraft keybind settings.
- Add Eyecandy Scripting, see documentations for details.
Changes
- Scripting Engine (Rhino)
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- For Minecraft 1.17+, the Rhino engine has been updated to 1.8.0 which added more support for modern JS syntax. See this compatibility table for details.
- Script Execution:
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- Script may now execute among 4 different threads.
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- Note: The same type of script entry will always be executed on the same thread
- Slightly refactor the transaction history logic, should hopefully be a little more robust.
Misc
- Full Changelogs for Script Developers:
For Minecraft 1.16 players
Minecraft 1.16 has already been released for well over 4 years. While there are many efforts in the codebase to make JCM available for 1.16, it also puts a burden to maintain them.
- Feature parity for 1.16 will no longer be maintained. New script features/capabilities (Especially scripting engine related) may not be available on 1.16.
- Players who are still playing on 1.16 should consider upgrading to any newer version.
- When demands have become low enough, we may consider dropping 1.16 builds all-together.
Download:
You can download this release on Modrinth, CurseForge or GitHub


