In 2023, #Thunderbird will reinvent itself with the “Supernova” release, featuring a modernized interface and brand new features.

One of the major improvements you can look forward to is an overhaul to our #calendar UI. Today we’re excited to give you a preview of what it looks like!

https://blog.thunderbird.net/2022/11/thunderbird-supernova-preview-the-new-calendar-design/