[wp-hackers] New password hashing algo in trunk

[Ryan Boren]

(Cross-posted to testers and hackers lists)

Trunk now hashes passwords with phpass. See ticket 2394 for details.

http://trac.wordpress.org/ticket/2394

Backup up your users table before updating trunk is advised.  Whenever
a user logs in via wp-login.php, their hash will be updated to use the
new algo.  If you want to roll back, you will need a back up of the
users table that contains the old md5 hashes.

Changes to cookie authentication are coming soon as well.  You will
probably want to avoid trunk for the next couple weeks unless you want
to help debug login problems.

Ryan