On Friday the developer builds of safari 4.0 and OSX 10.5.5 were released to the developer community. Those who received the builds report a "develop menu, redesigned web inspector and integrated java debugger and profiler." Safari 4.0 also includes better support for CSS and HTML 5 as well as a speed boost. The update to OSX includes improvements to mail.app and directory search. There was also a new server build released to developers as well.

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