-Fixes a bug where Premium features in the metabox might not work for custom post types.
-Fixes a bug where additional keyphrases and synonyms would not be saved for taxonomies.
Content analysis recalibration (beta): When the recalibration beta is enabled a “Stale cornerstone content”-filter is added to relevant content types. Bugfixes: Fixes a bug where admin-assets would be loaded on pages where they are not relevant. Fixes a bug where changing the slug of an inaccessible post type creates a redirect for that object. Enhancements: Improves the feedback given when importing redirects. Other: Includes every change in Yoast SEO core 9.4.0 see the core changelog.
