For each and every new pure versionnumber of WP it seems there is a security update. I am happy the WP team is working so diligently to upgrade their program’s security. Espacially now with WordPress being called ”unsafe” by a Swedish magazine.
What is funny among these lines is the wordpress blogs being called unsafe are most often version 2.8, and we´re at 4.0.1 now. Take any software being so old and it will be a reason for concern.
The Security update for WordPress should have rolled out if you use automatic updates. Otherwise it is very much recommended you do the upgrade. One should always upgrade the base wordpress and any plugin as soon as one can. All for security.