3. Wpseo WoocommerceThis extension to WooCommerce and Yoast SEO makes sure there's perfect communication between the two plugins.
4. WhipA WordPress package to nudge users to upgrade their software versions (starting with PHP)
5. Yoastseo AmpGlue plugin to make Yoast SEO work nicely with the default WordPress AMP plugin
8. Wpseo NewsNews XML Sitemap module for the WordPress SEO plugin
9. Yoastseo.jsAnalyze content on a page and give SEO feedback as well as render a snippet preview.
15. PHPUnit-PolyfillsSet of polyfills for changed PHPUnit functionality to allow for creating PHPUnit cross-version compatible tests