Twitter has improved its service to make it more easier to use. Chances are, many users might not even realize any changes have been made, but things have been done, and while not significant, it’s good for the platform regardless.
Back in May of this year, Twitter announced that it was planning to improve the character count of your tweets. By now we should all know that users have a 140-character count to work with when sending tweets. This won’t be changing any time soon.