A Multisite Network plugin to add Network->Settings to limit, or disable, the number of post revisions and set the post autosave interval.
This section describes how to install the plugin and get it working.
- Upload the plugin to your blog, Network Activate it
- Go to Network Admin->Settings to set “Post Revisions” and “Autosave Interval”.
- WP 4.6 tests OK, cleanup php notices
I based the default plugin values for the constants AUTOSAVE_INTERVAL and WP_POST_REVISIONS on the discussion here: http://wpmututorials.com/how-to/managing-autosavepost-revisions/