| ⇢ | A | AttachmentPathFinder added | |
| ⇢ | A | ContentImporter added | |
| ⇢ | A | Service added | |
| A | ↘ | B | MslsMetaBox got worse |
| ⇢ | C | MslsMetaBox::render_import_content_metabox() added | |
| ⇢ | A | Service::register() added | |
| ⇢ | A | AttachmentPathFinder::filter_src() added | |
| ⇢ | A | AttachmentPathFinder::filter_srcset() added | |
| ⇢ | A | ContentImporter::import() added | |
| ⇢ | A | ContentImporter::filter_empty() added | |
| ⇢ | A | MslsAdmin::activate_content_import() added | |
| A | ↘ | B | MslsMetaBox::add() got worse |