Faster and more stable - MySQL 5.5 released
The new version 5.5.8 is the first stable version of MySQL to be released since Oracle acquired Sun. The release also represents the opening salvo in Oracle's plan to position the open source database primarily in the web and embedded application market. Oracle's core database will continue to be aimed primarily at Enterprise applications such as ERP, CRM, business intelligence and data warehousing. The Community Edition of MySQL is available free of charge under a GNU General Public License (GPL). Oracle also offers paid for distributions.
Oracle states that data processing is up to 15 times faster than in MySQL 5.1.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump