YES! The 10.5.3 update to OSX finally fixes the problem where the Aperture Library would get backed up from scratch multiple times. In previous versions of OSX, if you had Aperture open while a backup started, Time Machine would skip the Aperture Library until you closed Aperture. Then, the next backup would do a complete copy of your Aperture Library. yes, the WHOLE Library, not just the changed files... like I explained in this post on the HArdmac blog (and as Apple explained in a KBase post). So, yesterday, after reading that the 10.5.3 update "Addresses compatibility issues with Aperture 2." I decided to give it a go: I removed my Aperture Library from Time Machine's exclusion list and let it get backed-up (that's about 37GB). As soon as the first backup was done, I launched Aperture and let it open until the next backup started. After the second backup was complete, I quit Aperture and had a look at the backupd logs for the third backup... and voila! it only backed up a couple new pictures I had added to Aperture. Thanks Apple, it took you an awfully long time to fix this (and why the bug was there in the first place, when they control the whole OS/apps/hardware???) but finally it is fixed.

	Read more at Mac Bidouille
	www.hardmac.com/news/2008-05-29/#8335