The default behavior of WordPress is to expire a post after 14 days. This feature changes that up.
You can now set up expiration based on post activity. If a post gets updated, or a new comment is posted, the clock resets.
### Set the Expiration Time (in days)
Since expiration goes off of last activity, the number of days will be the amount without any activity.
### Enable for Post Types
You can choose to enable this feature for some post types or all post types.
### Allow Per-Post Overrides
By enabling per-post overrides, each post, page, or post type will have a sidebar option so that you can set the expiration at the post label.
