It looks more like a product acquisition than collusion.
> Slack will pay an undisclosed amount over the next three years to acquire Atlassian’s HipChat and Stride products
> Slack will pay an undisclosed amount over the next three years to acquire Atlassian’s HipChat and Stride products
They are immediately deprecated. It doesn't appear that Slack has any real interest in Hipchat/Stride tech (I know I don't).
The end-of-life dates for each products are below:
Stride: February 15th, 2019
Hipchat Cloud: February 15th, 2019
Hipchat Data Center (v3.0): June 22nd, 2019
Hipchat Data Center (v3.1): September 26th, 2019
Hipchat Server (v2.1): December 8th, 2018
Hipchat Server(v2.2): May 30th, 2019
Hipchat Server (v2.4): June 30th, 2020