Keeping track of what the official Twitter client is up to is tricky under Windows since a) the Store entries rarely have any useful information on updates (there was one overnight), b) most of the functionality upgrades are now server-side, and c) the official release notes are both confused and slightly out of date. Regardless, there's enough new in Twitter today that it's worth highlighting some new bits I've not mentioned before.
Links to twitter.com from Edge browser will now open in the app.
A few relevant screens:
Deep down in Settings, you need to manually enable 'Compose image descriptions'; (right) there's then an extra 'add description' field to fill in for each attached photo.
Seen here is the tweet, the photo, and (in tiny font) what a blind person might hear read out for them for the photo in their 'screen reader'; (right) searching for something on Twitter now sees that search term emboldened in all matches.
Rotating your phone lets you read through Twitter in landscape, plus you can zoom in as needed, which can sometimes be handy.
Any references/links to tweets online now bring up that tweet in the Twitter PWA directly - very neat and integrated. Yes, even under Windows 10 Mobile!