Wez Furlong has this quick note on his blog today about some major work that he's done on the PDO extension in perparation for PHP 5.1.

I spent pretty much all day working through the outstanding PDO bugs listed on bugs.php.net and pecl.php.net. There are now no known problems with any of the main-stream drivers, so I've bumped the version numbers up to 1.0RC1 and released them via PECL (ODBC and OCI package releases are pending build/install tests).

Please make the effort to download and use them so that we can catch any remaining bugs; we're getting very close to PHP 5.1 stable, and I really want you to catch any problems with the way that you use it before the release date, rather than the day after.

He also notes that he's been updating the PDO docs in the manual to keep up with the changes he's been making. So, if you're a fan of the PDO extension or just want to get in there and help Wez get it all tested before the PHP 5.1 release, head over to pecl.php.net to get the latest edition!