Op 2/15/2012 11:21 AM, Mark schreef:
On Wed, Feb 15, 2012 at 11:17 AM, Robin Burchell <robin...@viroteck.net <mailto:robin%2...@viroteck.net>> wrote:

    2012/2/15 Mark <mark...@gmail.com <mailto:mark...@gmail.com>>:
    > Why would you still support QML 1? Qt5 is going to have QML 2
    which should
    > be superior to QML 1 in about every single way so why not just
    drop it for
    > Qt5?

    Because one of the central points of Qt 5 is maintaining compatibility
    with Qt 4 as far as is possible. That means not breaking existing code
    (of which there is quite a lot).


I understand, but isn't QML 2 itself backwards compatible with QML 1? All the dev has to do is change the import line and everything should still work right?
No, not if you used anything beyond the standard components. If you subclassed QDeclarativeItem yourself, you'd be screwed.

André

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