Slack 2.12.0 Release Notes:
A quick and easy way to see which of
your starred channels have unread messages, in-app browser support,
the ability to invite team members to ongoing calls, a whole clutch
of bothersome bugs fixed, and more.
https://slack-files.com/T024BE7LD-F1DQXL410-a9520bc28b to read all
the details.