Apple updates Snow Leopard to 10.6.3, loads of minor quirks get patched

Nearly five months after OS X 10.6.2 hit the pipes (and just seven months after 10.6.1), Apple has updated its Snow Leopard operating system to v10.6.3. Weighing in rather heavily at 757.3MB (when you upgrade from 10.6.2, anyway), this mammoth update brings along a laundry list of fixes, including improved reliability and compatibility of QuickTime X, a resolution to an issue that prevented files from copying to Windows file servers and boosted reliability of third-party USB input devices. You can check the full changelog after the break, but in all honesty, we're guessing that the unwritten change is integrated support for Intel's mobile Core i5 / Core i7 chips, both of which should become options on the MacBook Pro line as early as tomorrow last week. Fire up Software Update to get the download rolling, but only if you're kosher with subjecting yourself to all sorts of unknown application breaks. We're installing it ourselves here at Engadget HQ, and we'll update the post if anything catastrophic happens.