Thread: Qt5 on N9
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w00t is offline w00t
2012-05-28 , 10:14
Posts: 1,055 | Thanked: 4,107 times | Joined on Oct 2009 @ Norway
#21
Originally Posted by hw9xx View Post
Really? Nokia is updating Qt 4.7.4 phones like 701 or N8 to Qt 4.8 with Belle. Should be possible on the N9 too I think.
Qt minor releases (4.0 -> 4.8) are all binary compatible. Meaning an application built against 4.0 will be runnable against 4.8. Note that this doesn't go backwards.

Major releases (3 -> 4, 4 -> 5) are not binary compatible. At the very least, they need a rebuild - but major releases also usually break API in some forms. 4 -> 5 is a fairly minor case of that though, so stuff mostly will just work with a rebuild.
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