Mattermost
Go to the previous unread channel
In Mattermost, Alt + Shift + Up arrow will go to the previous unread channel. On a Mac, press Option + Shift + Up arrow instead.
Where it works: Channel sidebar
Every documented variant
| System | Environment | Keys |
|---|---|---|
| Mac | Desktop app | OptionShiftUp arrow |
| Windows | Desktop app | AltShiftUp arrow |
Where this comes from
Documentation checked on 2026-09-12. That is a documentation review, not a test run inside the application.