Apple has updated the combo updater for Mac OS X 10.6.3 (for details on that update, see "Mac OS X 10.6.3 Update Delivers Range of Fixes," 29 March 2010). Although Apple provided no details on what was changed, the only users who need to consider installing it are those who updated from Mac OS X 10.6.0 using the 1.0 version of the Mac OS X 10.6.3 Update, build 10D573 (in other words, someone reinstalling Snow Leopard from scratch and then updating to 10.6.3 in one step). Apple has also released the tiny (635 KB) Mac OS X 10.6.3 Supplemental Update 1.0 solely via Software Update for these users. The combo updater is available via the Apple Support Downloads page, and will be presented by Software Update to those reinstalling Snow Leopard from scratch. (Free, 785.29 MB)
Trust Local Addresses in VirusBarrier X6's Antivandal
VirusBarrier X6's Antivandal feature stops all kinds of network attacks, including port scans, ping floods and more. However, you may have some devices on your network that send out pings or other requests that may be interpreted as attacks. To prevent this, add them to the Trusted Addresses list so they won't be blocked. You can even add a range of addresses with wildcards, such as 192.168.1.*.
Mac OS X 10.6.3 Combo Update 1.1
Set up short abbreviations which expand to larger bits of text,
such as “Tx” for “TextExpander”. With the new custom keyboard,
you can expand abbreviations in any app, including Safari and