Yoast SEO was updated to version 4.2, from version 4.1. Changelog:
- Fixes a bug where the sitemaps were being invalidated too often.
- Fixes a bug where the ‘meta keywords’ meta box section stayed visible when switching to the readability tab.
- Moves translations from translate.yoast.com to translate.wordpress.org.
- Improves the styling of the featured image warning and sends an audible message for screen readers.
- Makes the left sidebar of the meta box responsive.
- Removes unused heading from the meta box.
- Improves responsiveness for settings pages.