Well there is a bug fix release for OS X. Here are the things to watch out for:
Mac OS X 10.5.4 (#4): Spotlight problems; random shutdowns; poor performance; more – MacFixIt
Spotlight problems Some users have reported Spotlight problems after updating to Mac OS X 10.5.4, a relatively common occurrence with major system updates.
One reader writes:
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Mac OS X 10.5.4 problems
July 8th, 2008 · 2 Comments · Geek
Tags: Checkmark·Downloaded Material·Hard Drive·Installation Software·Mac 10·Mac OS X·Macbook·Occurrence·Os X·Poor Performance·Servers·Shutdowns·Smc·Software Update·Spotlight Index·Spotlight Issues·System Updates