delarge
10/17/2018 - 11:56 PM

Control WP revisions via functions.php

ref: https://www.sitepoint.com/wordpress-post-revision-control/

wp_revision.php
content_copyfile_download
add_filter( 'wp_revisions_to_keep', 'control_revisions', 10, 2 );

function control_revisions($num, $post) {

  if('custom_post' == $post->post_type) $num = 5;
  return $num;

}