I have seen much FUD around this, and I wanted to clarify so people are aware what Google’s Intentions are for Hangouts. As I am a heavy user of the product, I was very surprised to see this. It appears that Google will still keep Hangouts around, but for the ‘normal’ user demographic only. They will be disabling their API on April 25. This however, should not be a complete surprise. Google has made it clear that with the arrival of their new products Allo and Duo that they are switching to an enterprise vision for many of their products. However, they will NOT BE REMOVING IT COMPLETELY, as mentioned in the linked engadget.com article.
What does this mean for you? The ‘End User’, if just using the services at face value may not even see a difference. However, services and sites that use the integration features will likely be affected. They (google) have allowed for an exception, and that is if they site/service qualifies as an “Enterprise Communication Tool”, slack for example. There won’t be many of those I expect.
Basically it comes down to this, they are ending the Hangouts API integration (publicly) on April 25th.
Hope that helps,