Announcing more functionality to improve customer engagements on Twitter

TweetBot – among others – is apparently in trouble:

'After June 19th, 2018, streaming services at Twitter will be removed. This means two things for third-party apps:

Push notifications will no longer arrive Timelines won’t refresh automatically'

http://apps-of-a-feather.com/

Sorry, I missed https://news.ycombinator.com/item?id=16774271