WordPress 3.1.3 is just a security update for the previous versions.The Security fixes and enhancements are:

• Various security hardening by Alexander Concha.
• Taxonomy query hardening by John Lamansky.
• Prevent sniffing out user names of non-authors by using canonical redirects. Props Verónica Valeros.
• Media security fixes by Richard Lundeen of Microsoft, Jesse Ou of Microsoft, and Microsoft Vulnerability Research.
• Improves file upload security on hosts with dangerous security settings.
• Cleans up old WordPress import files if the import does not finish.
• Introduce “clickjacking” protection in modern browsers on admin and login pages.

More details can be found here.Most existing users could get updated automatically,or you also could choose to manually download and then install it by yourselves.

Well,it’s not the only update for the day.WordPress 3.2 released its latest update-beta 2.Be aware that it’s a beta version of WordPress and so it’d better to test on a non-production website as it may be working not stably at all.

New version includes some changes since beta 1:

• Google Chrome Frame is now supported in the admin, if you have it installed. This is especially useful for IE 6 users (remember, IE 6 is otherwise deprecated for the admin).
• The admin is less ugly in IE 7.
• The blue admin color scheme has caught up to the grey one, and is ready for testing.
• We are now bundling jQuery 1.6.1. You should test any JS that uses jQuery. WordPress JavaScript guru Andrew Ozz has a post with more info.

It’s announced that WordPress 3.2 should be officially announced by the end of this month if all results from beta testers show good.I wish it could be on the right track.Eventually I wish to see the improvements on loading the control panel and editors as currently they’re still running a bit slow.