Updates while you sleep: With WordPress 3.7, you donít have to lift a finger to apply maintenance and security updates. Most sites are now able to automatically apply these updates in the background. The update process also has been made even more reliable and secure, with dozens of new checks and safeguards.
Stronger password recommendations: Your password is your siteís first line of defense. Itís best to create passwords that are complex, long, and unique. To that end, the password meter has been updated in WordPress 3.7 to recognize common mistakes that can weaken your password: dates, names, keyboard patterns (123456789), and even pop culture references.
Better global support: Localized versions of WordPress will receive faster and more complete translations. WordPress 3.7 adds support for automatically installing the right language files and keeping them up to date, a boon for the many millions who use WordPress in a language other than English.