Read the statement by Michael Teeuw here.
Upcoming Release April 1, 2026 , breaking changes, some operational changes
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Breaking changes in upcoming April release,
We’ve structurally reorganized the system to strictly separate user data from repository data.The modules folder now contains only user data in the form of third-party modules. The standard modules included with MagicMirror² have been moved to a separate directory, defaultmodules.,
The css folder now contains only data belonging to the MagicMirror repository.
The previously located custom.css file has been moved to the config folder. This happens automatically the first time you start the new version of MagicMirror². The installer and upgrade scripts will do this too
The way config.js is loaded has changed. This should not affect standard users. However, it may have side effects for third-party modules. The client (browser) no longer loads config.js directly from the file system but via the web server (/config).,
Support for config.js.template files has been removed. we will not generate the final config.js like we do today.
Instead, config.js now supports curly braced bash variables. and the .env file remains the same
Users who previously used a template must copy its contents into config.js once
If MagicMirror² is running as an Electron application:
We’ve changed the default window manager in the startup script from X11 to Wayland. Most Raspberry Pi OS users are likely now using trixie or bookworm, which already ship with Wayland as the default. Running node --run start is now equivalent to node --run start:wayland. Users still using X11 must now switch to node --run start:x11.
The kioskmode, which has been marked as deprecated for 10 years, has been removed. If the kiosksmode parameter is set in config.js, it can be removed; it is now ineffective. You may need to adjust electronOptions parameters if you used kiosksmode before.
If you think any modules you’ve developed may be impacted, you can use the develop branch to test . see this topic about how to get the develop branch if you need to do that
https://forum.magicmirror.builders/post/86422also if you test as a user and find any issues
please use this topic for any issues you find…
Also,
there are substantial changes to the Calendar module to finally cleanup all the date, timezone, and Daylight savings problems. this removes the use of the moment js library
a complete rewrite of the weather module, to move data acquisition into the node_helper and share that data between module instances (current/forecast for example) … this will help reduce the number of api calls the module makes when there are multiple instances.
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