Access the Notifications list by clicking on the notifications icon (bell) in the Navigation Sidebar. When you have unread notifications, a red number with the count of new notifications will appear over the icon.
Notifications are sorted newest to oldest on the notifications list. Use the search field to quickly find specific messages.
Select a notification from the list to read it. Notification names are bolded until they are read.
Delete notifications by clicking the trash can icon. Delete all visible notifications by clicking the select-all checkbox, then clicking the trash can icon. You can also multi-select using shift+click and ctrl/command+click on your keyboard and mouse.
Note: Notifications are automatically deleted after 180 days.