Support for the Apple Watch Smart Stack , providing quick access to calendar events directly from the watch face via the Digital Crown.

Beyond version-specific updates, Calendar 366 II provides a full suite of productivity tools: Calendar 366 II for Mac

The 2.8.x series brought significant updates to visual integration and device-specific functionality:

Version 2.8.4 (released late 2023) focused on optimizing the app for , introducing modern widget and complication support. Key Features of Version 2.8.4