Security Update 2005-007 v1.1 Works with 64-Bit Apps -- Apple has released version 1.1 of its Security Update 2005-007 for Tiger users. The only change in v1.1 is that it provides a combined 32- and 64-bit version of the operating system component LibSystem; the initial release of Security Update 2005-007 omitted the 64-bit version, breaking 64-bit-savvy programs like Mathematica on systems with G5 processors.

<http://docs.info.apple.com/article.html? artnum=302163>

The 64-bit change for Security Update 2005-007 applies only to the client and server versions of Mac OS X 10.4.2 Tiger - folks using Mac OS X 10.3.9 Panther don't need to worry about downloading a new version of the update. Apple is recommending that all Tiger users install the new version of the update, although - in theory - users of G4-based machines have nothing to gain if they've already installed the first version of the security update. (Except, perhaps, to prevent Software Update from nagging them about it.) The update sizes remain unchanged: approximately 18.5 MB for the client version of Mac OS X 10.4.2, and 20.6 MB for the server version. [GD]

<http://www.apple.com/support/downloads/ securityupdate2005007v11macosx1042client.html>
<http://www.apple.com/support/downloads/ securityupdate2005007v11macosx1042server.html>