Apple on Friday posted a pre-release version of OS X Mavericks 10.9.1. The new release is available for download only if you're a registered Mac developer; it's available through Apple's developer web site.
Information about what's changed is included in a seed note that's available to developers, but that information remains under Apple's non-disclosure agreement, so we'll refrain from posting details at this time.
Bottom line: if you're a registered developer, go check it out and read the seed note and see if it's worth your while to test. Everyone else, be ready for a point update to Mavericks in the coming days, unless Apple or developers find any showstoppers.
Have you found any showstoppers in the release version of Mavericks? What do you dislike, or what's bothering you? Sound off in the comments. And for more on Mavericks, read our review.