Corebird 1.3.3 is here as the latest and most advanced version of the Twitter client for GNU/Linux operating system, adding better support for the new, longer tweet format implemented by Twitter, which, in fact, was added in the Corebird 1.3.2 release last week for the first time. Moreover, Corebird 1.3.3 attempts to make the calculations of tweet lengths for whitespace-only tweets work correctly, check for duplicate entries in media arrays, properly escape “&” characters in user mentions, as well as to use the right NSFW (Not Safe for Work) status of a tweet that includes images.