Some Wordpress plugins are often updated, which is good think. Plugins that are updated are 100% compatible with last Wordpress version and they also are the most secure possible. A plugin that has not been updated for a long time might not work with last Wordpress version and might create a security breach for you website.
Hides out of stock products when viewing an attribute catalog page.
This plugin adds native HTML5 validation support to Gravity Forms' fields.
A plugin that adds the "Featured Image" column in admin posts and pages list.
Peanut Butter Bar allows you to attach sticky bars to the roof of your site that stays visible no matter how far a user scrolls.
Very simple, highly customizable counter widget for showing difference in days from a specified date and time.