Editing Carbon (API) (section)

===Transition to Cocoa===
Despite the purported advantages of Cocoa, the need to rewrite large amounts of legacy code slowed the transition of Carbon-based applications, famously with [[Adobe Photoshop]],<ref>{{cite web|url=http://blogs.adobe.com/jnack/2008/04/photoshop_lightroom_and_adobes_64-bit_road.html|title=Photoshop, Lightroom, and Adobe's 64-bit roadmap|author=John Nack |archive-url=https://web.archive.org/web/20150414030843/http://blogs.adobe.com/jnack/2008/04/photoshop_lightroom_and_adobes_64-bit_road.html |archive-date=2015-04-14}}</ref> which was eventually updated to Cocoa in April 2010. This also extended to Apple's own flagship software packages, as [[iTunes]]<ref>{{cite web|url=https://arstechnica.com/apple/news/2010/09/itunes-10-hands-on-snappier-performance-questionable-ui-choices.ars|title=iTunes 10 hands-on: snappier performance, questionable UI choices|author=Chris Foresman |date=September 3, 2010|archive-url=https://web.archive.org/web/20150402183024/http://arstechnica.com/apple/2010/09/itunes-10-hands-on-snappier-performance-questionable-ui-choices/ |archive-date=2015-04-02}}</ref> the Finder application, and [[Final Cut Pro]] (as well as the features in the [[QuickTime]] engine that powers it<ref>{{cite web|url=https://arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars|title=Mac OS X 10.6 Snow Leopard: the Ars Technica review|author=John Siracusa |date=September 2009|archive-url=https://web.archive.org/web/20140713115247/http://arstechnica.com/apple/2009/08/mac-os-x-10-6/ |archive-date=2014-07-13}}</ref>) remained written in Carbon for many years. iTunes, Finder, and Final Cut Pro have since been released in Cocoa versions.