Twitter is transitioning to a new API today. It announced the changes in April 2018 but today’s the day it’s supposed to be flipping the switch.

The trouble is, this will cripple some of Twitter’s third-party apps. John Voorhees at MacStories reports the following as being amongst the effects:

Timeline streaming has been removed, replaced with automatic refreshes every couple of minutes.

Retweet, quote tweet, like, and follow notifications are gone.

Mention and direct message push notifications have been reworked, which can delay them several minutes.

Tweetbot’s Stats and Activity view that displayed aggregate like, retweet, and follower data along with chronological like, mention, reply, and follow information has been removed.

The Tweetbot Apple Watch app has been discontinued.

I’ve never understood why API producers deliberately crock third party apps because a rich developer ecosystem benefits them in 99% of cases. Presumably the people who make the decisions to do these sorts of things have control issues.