I was informed by a good friend how important it is to update plug-ins if your blogs are hosted in wordpress. One reason is to get updated with the current security settings of the blog to fix security bugs in their HTML sanitation library, called KSES and other security issues.
If I read notices in my dashboard regarding plug-in updates, I immediately do it as soon as I can. Better be safe that sorry. This is one of the messages I read when plug-ins need to be updated.
“The following plugins have new versions available. Check the ones you want to update and then click “Update Plugins
Jetpack by WordPress.com
You have version 2.2 installed. Update to 2.2.1. View version 2.2.1 details.
Compatibility with WordPress 3.5.1: 100% (according to its author)
You have version 0.6 installed. Update to 0.6.1. View version 0.6.1 details.
Compatibility with WordPress 3.5.1: 100% (according to its author)”