Instagram update adds new Explore tab

It hasn’t been bought by Facebook just yet – regulators on both sides of the Atlantic are scrutinising the proposed acquisition – but Instagram’s photo-sharing app continues to evolve. Version 2.5 has just launched on iPhone, adding a new Explore tab to help users browse hashtags and usernames on the service. Liking a pic now also posts it to Facebook. Both could be handy for music artists using Instagram, to help boost the audience for their filtered photos.