Filed under: Computing | Tags: aperture, delta update, lion, mac app store, mac os x 10.7, Mac OS X Lion, update, Upgrade
One of the least publicised new features in Mac OS X Lion is its support of Delta updates, or rather only sending through those parts of the program that need to be changed, rather than making you download an entirely new version of the program, great for those who may have limited download quotas perhaps. Not me, thankfully! Today I had occasion to download my first such update since upgrading to Lion, an upgrade for Apple’s Aperture 3 photography application. I had read earlier in the day that the update was around 200MB+, which combined with the 599MB worth of updates I’d downloaded for iLife apps the other day, I thought WOOOH it’s a week for massive updates. After clicking the update icon in the Mac App Store the update actually showed up not as 200MB+ but rather 650MB+, boy someone go that wrong. As it started download the update I thought did I blink, or did that just jump from 0MB to 120MB in like 10 seconds, then to 200MB, and similarly it progressed very quickly through that apparent 650MB download size, thus the 650MB must have represented the original program’s size, and it was downloading those portions of the program that it needed to update, the progress bar progressing to the points where each delta component was needed. Installation post-download seemed to progress quickly, although I do think there may have been some slight additional overhead associated with this style of update, I think given the saving it’s more than worth it!
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