In its developer forum, Twitter has confirmed that the limit of 140 characters in instant messaging will no longer be required.
This announcement was originally directed at developers to update their APIs to accept messages longer than 140 characters if their products have the direct messages feature. messages of Twitter.
The change will not affect the policy for tweets, which will remain as they are, i.e. with the limitation of 140 characters.
New instant messages are expected to be seen in July.
The new feature will be very useful for private talks through TWitter, since you will no longer need to send a single sentence in case what you want to write is like a novel.