App researcher Jane Manchun Wong, who discovers unannounced social media features by looking at the sites’ code, tweeted an animation showing a tweet with a spelling error where an ‘undo’ button was available before a short timer ran out.
Twitter CEO Jack Dorsey's credit and payments firm Square has invested $170 million in Bitcoin, tripling his previous investment in the cryptocurrency giant.
The announcement came as Bitcoin's value surged past $50,000, setting a new record.
Facebook has discussed making its chief executive, Mark Zuckerberg, available to appear before the House Energy and Commerce Committee, the report added, citing two people. Twitter and its chief, Jack Dorsey, have discussed the same, Politico said, citing one person.