- Option to limit access to certain IP addresses based on the value of `ipWhitelist` in the `config.js`, default is access from localhost only (Issue [#456](https://github.com/MichMich/MagicMirror/issues/456)).
- Added ability to change the point of time when calendar events get relative.
- Module API: Add Visibility locking to module system. [See documentation](https://github.com/MichMich/MagicMirror/tree/develop/modules#visibility-locking) for more information.
- Module API: Method to overwrite the module's header. [See documentation](https://github.com/MichMich/MagicMirror/tree/develop/modules#getheader) for more information.
- Module API: Option to define the minimumn MagicMirror version to run a module. [See documentation](https://github.com/MichMich/MagicMirror/tree/develop/modules#requiresversion) for more information.
- Calendar module now broadcasts the event list to all other modules using the notification system. [See documentation](https://github.com/MichMich/MagicMirror/tree/develop/modules/default/calendar) for more information.
- Possibility to use the the calendar feed as the source for the weather (currentweather & weatherforecast) location data. [See documentation](https://github.com/MichMich/MagicMirror/tree/develop/modules/default/weatherforecast) for more information.
- Fix issue where translation loading prevented the UI start-up when the language was set to 'en'. (Issue [#388](https://github.com/MichMich/MagicMirror/issues/388))
- Edit Alert Module to display title & message if they are provided in the notification (Issue [#300](https://github.com/MichMich/MagicMirror/issues/300))
- Removed 'null' reference from updateModuleContent(). This fixes recent Edge and Internet Explorer browser displays (Issue [#319](https://github.com/MichMich/MagicMirror/issues/319))
This was part of the blogpost: [http://michaelteeuw.nl/post/83916869600/magic-mirror-part-vi-production-of-the](http://michaelteeuw.nl/post/83916869600/magic-mirror-part-vi-production-of-the)