If you’re a Mac OS X (Mac OS X 10.4.11 Tiger) user who had been waiting for an update, then you can download the newest version that Apple has released iLife which provides system software components shared by all iLife ’08 applications..
The latest update is the iLife Support 8.3.1 update that contains very simple without anything of great importance to the user, but have added some security fixes, but nothing critical.

The last update for iLife was in July, so this new update has a higher stability and fixes some bugs in the software, in particular, the update includes three fixes for the ImageIO framework, all of which are related to code execution or application termination security holes related to malicious image files. In all three cases, a memory corruption or access hole can be exploited by a malicious TIFF or JPEG file, but this update should take care of all of that. The issues have already been fixed in Leopard.

iLife Support 8.3.1 is for users with Tiger version 10.4.11 and is only 11.7MB in size. As usual, the update can be accessed via Software Update or the individual support page . As usual, the update can be accessed via Software Update page.

Link: Mac os x Update