The team collaboration software space is facing consolidation in the face of renewed competition.
In an announcement on the official Slack blog, April Underwood, Slack's Chief Product Officer, positions the move as a "partnership" between Slack and Atlassian, the owner of Hipchat and Stride.
According to Atlassian's corresponding blog post, Joff Redfern, Atlassian's Vice President of Product Management, explains that the company has made an equity investment in Slack in exchange for Slack's acquisition of HipChat and Stride. Both services are discontinued, with Slack providing a migration path for users of both applications in order to continue working using the company's flagship Slack team collaboration software.
Both Atlassian and Slack have set up dedicated migration pages for users of Hipchat and Stride to smoothly migrate to Slack: