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iTunes 10.5 Beta is 64-bit, and... Cocoa?

Monday, 13 June 2011 07:07

Start64!The beta version of iTunes 10.5 released to developers last week is the first version of iTunes to run in 64-bit mode. The distinction is perhaps a bit minor for an app like iTunes, but has been the source of much discussion over the years. What's perhaps of more significance is the belief that this 64-bit support must mean that iTunes has been ported from Carbon to Cocoa, though that line seems to be rather blurred.


The primary advantage afforded 64-bit applications is the ability to address more than 4GB of memory which can be a distinct advantage for applications which use large data sets. Adobe, for example, received some criticism in 2008 that their Photoshop products were slow to adopt 64-bit mode on the Mac. 64-bit Photoshop for Mac ultimately arrived with CS5.

YouTube - iTunes 10.5 Beta For Developers Support 64-Bit Version Mac OS X! Ported To Cocoa From Carbon

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