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Qt 2.0 Beta3 is not binary compatible with Beta2, this means that any
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programs linked with Beta2 must be recompiled.
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The most important fixes since Beta 2:





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platforms





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	64-bits, FreeBSD and gcc 2.7 fixes





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QLayoutIterator/QGLayoutIterator





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	The custom layout API has been changed: void removeCurrent()





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	has been replaced by QLayoutItem* takeCurrent().





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QLabel





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	The functions setMargin() and margin() have been renamed to





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	setIndent() and indent, to avoid collision with QFrame::setMargin().





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QAccel





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	Non-latin1 accelerators are now supported.





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QTranslator/findtr/msg2qm/mergetr





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	All reported bugs fixed and improvements made.





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Rich Text





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	Many improvements and fixes such as supressed warnings in the 





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	QBrowser example. Support for logical font sizes.





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QApplication





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	lastWindowClosed() now works with virtual desktops. Desktop settings





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	on Windows improved.





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QScrollView / QMultiLineEdit





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	Speedups with a new widget flag: WNorthWestGravity.





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QPopupMenu / QMenuBar





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	Speedups, less flicker.