Facebook CEO Mark Zuckerberg delivers the keynote address at Facebook's F8 Developer Conference on April 18, 2017 at McEnery Convention Center in San Jose, California.

Facebook Messenger is rolling out the option to delete a regretful or mistaken message from their chat history.

Facebook initially promised the feature after TechCrunch reported in April that multiple people said Facebook messages they received from CEO Mark Zuckerberg later appeared to have been deleted while their own messages remained. At the time, Facebook told TechCrunch Zuckerberg's messages were deleted for security purposes.