How Do I Alphabetize Projects In The Library?

I was having this issue, too. It used to sort automatically, then a few months ago it just stopped. New projects were added to the bottom of the list.

I realized that if you click on the little gear icon in the upper right corner of the Library tab, you can select "Keep Projects & Albums Arranged By" and check "Name"...

Mine was set to "Manual" and I have no idea why or how it changed to that (because it's always been alphabetized), but in any case, it's now fixed. 🙂

Post in the dedicated Aperture discussion for an informed reply.