One of Facebook's most important products is getting much smarter — and a little easier to use.

Less than 48 hours before its f8 developer conference, Facebook is rolling out an updated version of News Feed that does away with the two-tabbed interface that it's had for two years now. Before today you'd have to swap between 'Top Stories' (a feed of stories that Facebook thought were important) and 'Most Recent' (a feed of your friends' most recent actions on the site). Plenty of users clicked bo [...]

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