Are you using a Twitter app from a third party, for example Twitterrific or Tweetbot? Then from today you will notice that these apps have fewer options. The creators of the apps can not do anything about that, Twitter itself is the culprit.
External Twitter apps less options
It has already been announced (and then even postponed), but as of today, the creators of Twitter apps have to deal with a new API. That is, in short, the access that Twitter provides to developers to its own system. The possibilities are therefore more limited. The exact consequences are not yet clear, but it is already certain that your timeline no longer automatically refreshes – there is a delay, or you have to refresh manually. Push notifications do not work either.
How to use Twitter from now on?
Twitter also used the plug earlier this year from pulled their own Mac app so the possibilities do not stop. You could use Tweetdeck, that is from Twitter itself, but nobody is really enthusiastic about that and the program has not been updated for ages. Ideally, Twitter that you just use the browser – undoubtedly that is the most lucrative for Twitter.