While Qt 5.2 has been out since last month and Qt 5.3 is already well on its way to being released, Canonical is still shipping Qt 5.0 by default in the Ubuntu 14.04 development archive, the first Qt5 release from December 2012. It's not firmly decided yet what Qt5 version will ship in the final release of Ubuntu 14.04, but it's looking like Qt 5.2...
January 17, 2014
Qt5 Is Still Being Decided Upon For Ubuntu 14.04 LTS
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