Apple Begins Seeding Mac OS X 10.6.3 Build 10D522 to Testers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Begins Seeding Mac OS X 10.6.3 Build 10D522 to Testers

Apple has reportedly begun seeding Build 10D522 of Mac OS X 10.6.3 to a limited set of developers, marking the first official beta version of the third maintenance release for Mac OS X Snow Leopard. According to those familiar with the release, Apple has addressed approximately 225 issues in the update, which reportedly weighs in at roughly 666 MB.

Apple documents four remaining known issues in the current build, related to application updating, Displays preferences, iTunes hangs, and ColorSync Utility Filters.

Word surfaced nearly a month ago that a 10.6.3 beta release was imminent, but Apple apparently decided not to push any testing versions to developers until after the holidays. Apple's last update to Snow Leopard, Mac OS X 10.6.2, was released nearly two months ago.

Popular Stories

iOS 27 on iPhone 17 1

iOS 27 Will Add These New Features to Your iPhone

Saturday May 2, 2026 8:43 am PDT by
Apple is expected to unveil iOS 27 during its WWDC 2026 keynote on June 8, and there are already many rumored features and changes for iPhones. The first developer beta of iOS 27 will likely be available immediately following the keynote, and a public beta typically follows in July. Following beta testing, the software update should be released to all users with a compatible iPhone in...
Apple Event Logo

Apple Just Released a New Accessory

Monday May 4, 2026 8:13 am PDT by
Apple today released a new Pride Edition Sport Loop for the Apple Watch. The band features a rainbow design with 11 colors of woven nylon yarns. The new Pride Edition Sport Loop is available to order now on Apple.com and in the Apple Store app in 40mm, 42mm, and 46mm sizes, and it will be available at Apple Store locations starting later this week. In the U.S., the band costs $49. There...
Apple MacBook Pro M4 hero

Why You Might Want to Wait to Buy a MacBook Pro

Friday May 1, 2026 3:43 pm PDT by
Apple refreshed the 14-inch and 16-inch MacBook Pro with M5 Pro and M5 Max models in March 2026, but depending on your needs and interests, you might want to skip this generation because there's something better in the works. The M5 Pro and M5 Max MacBook Pro models have faster chips, but the same design that Apple has used since 2021. An updated design with new display technology and faster ...
Related Apple News: Ipad | World News | Culture | Lifestyle | Mac