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Slack is a collaborative communication app that simplifies real-time messaging, archiving, and search for modern working teams.

What's New

Version 2.5.1:
  • The way we load teams you don't view often has been changed to reduce the app's carbon* footprint
  • Folks consistently unable to load the app will now be greeted by a troubleshooting page that offers suggestions on making their situation better: (Spoiler: it's usually to do with over-zealous antivirus software)
  • Those pasting text with style into a Post


  • OS X 10.9 or later

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Slack User Discussion

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4.2 16


Current Version (2.x)


Downloads 11,670
Version Downloads 40
License Free
Date 26 Feb 2017
Platform Intel 64 / OS X
Price Free
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