While Twitter’s 140-character limit may have become a defining characteristic of the social platform, the company has decided to address the growing popularity of messaging apps by making a change to its private messaging feature. Last week, Twitter opened up its private chat function to allow users to send messages to each other using unlimited characters. It is unclear whether Twitter is considering a similar change to the character constraint on public tweets. “Twitter’s move is yet another admission that it needs to make the service more useful and easier to navigate,” suggests The Wall Street Journal.