WordPress 3.1.2 is a security update for all previous WordPress versions.
All WordPress users are strongly encouraged to update.
Read more / Get it at: wordpress.org/news/2011/04/wordpress-3-1-2/
Joomla 1.6.3 has been released.
This release corrects three issues caused by changes in version 1.6.2.
Read more / Get it at: joomla.org/announcements/release-news/5370-joomla-163-released.html