It appears that a number of users are confused by the Mac OS X 10.6.3 v1.1 update, which Apple released yesterday. Here’s the deal:
- This does not appear to be a “new” version of Mac OS X in the sense that it includes any enhancements or new features relative to the initial edition of Mac OS X 10.6.3. It only includes items that were left out if you updated directly from Mac OS X 10.6.0 to Mac OS X 10.6.3.
- You do not need this update unless you originally updated directly from Mac OS X 10.6.0 to Mac OS X 10.6.3. The update is not, according to Apple, necessary if you updated to Mac OS X 10.6.3 from Mac OS X 10.6.1 or 10.6.2.
- If your system needs the additional components included in this update, a very small (roughly 600KB) supplemental update will appear in Software update (the Mac OS X 10.6.3 v1.1 Combo Update weighs in at roughly 785MB).
- This update does not appear to include any fixes for issues that cropped up after the initial Mac OS X 10.6.3 update. Users who have downloaded and applied the update reported persistence of a variety of problems.
- There is no harm in applying the combo version of this update (reinstalling the combo update can be a useful troubleshooting tool), although you will be wasting time if you aren’t experiencing any issues and Software Update doesn’t show a supplemental update.