| A | ↘ | B | CMB2_Ajax got worse |
| ⇢ | C | CMB2_Ajax::clean_stale_options_page_oembeds() added | |
| ⇢ | B | CMB2_Ajax::cache_action() added | |
| ⇢ | A | CMB2_Ajax::hooks() added | |
| ⇢ | A | CMB2_Ajax::__construct() added | |
| A | ↘ | B | CMB2_Ajax::hijack_oembed_cache_set() got worse |
| A | ↛ | CMB2_Ajax::oembed_cache_set() removed |