https://techcrunch.com/2018/07/26/atlassians-hipchat-and-stride-to-be-discontinued-with-slack-buying-up-the-ip/

HipChat, the workplace chat app that held the throne before Slack was Slack, is being discontinued. Also being discontinued is Atlassian’s own would-be HipChat replacement, Stride.

News of the discontinuation comes first not from Atlassian, but instead from a somewhat surprising source: Slack CEO Stewart Butterfield. In a series of tweets, Butterfield says that Slack is purchasing the IP to “better support those users who choose to migrate” to its platform.