UX Teardown - Twitter's new Desktop design (Jan 2019)
Twitter has released a new desktop (web) version.
This is an in-depth review (1h30min) comparing the old vs the new. It goes through the good and the bad.
In short - there are a number of design changes that optimize Twitter for mobile and tablets. However, the actual design as focused for desktop is a step backwards in terms of functionality with many sloppy design choices.