It is just getting better everytime. WordPress 3.2, Beta 1 is now available. From this version forward, the minimum requirements are PHP 5.2.4 and MySQL 5.0. At this point a lot of Web-host do not support PHP 5.2.4 and MySQL 5.0 such as Yahoo! hosting. That might change.
More info on WordPress 3.2, Beta 1 can be found at WordPress.org.
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