hwde

There are a couple of “post notifier” plugins available, but I wasn’t able to 
found a similar than this one.
The plugin does a very simple thing: each time a post is created, updated or 
deleted, a URL defined in settings of this plugin is “called” by the plugin.

CallOnPost

"Call On Post" is a Post Notifier as a plugin which will "fetch" automatic the specified URL when a post is published or modified by a user.

Dion Hulse

** Support for this plugin is NOT offered, This plugin still however works. Please don’t expect support requests to be answered, or “This doesn’t work” reviews to be responded to. **
Revision Control is a plugin for WordPress which gives the user more control over the Revision functionality.
The plugin allows the user to set a site-global setting (Settings -> Revisions) for pages/posts to enable/disable/limit the number of revisions which are saved for the page/post. The user may change this setting on a per-page/post basis from the Revisions Meta box.
The plugin also allows the deletion of specific revisions via the Revisions post metabox.

Revision Control

Revision Control allows finer control over the Post Revision system included with WordPress

CallOnPost vs Revision Control