We need a page that can be filtered with the URL to show all content for specific releases. Content must come from (and be grouped by) the major post types: lesson-plan, course, wporg_workshop and meeting. The existing wporg_wp_version taxonomy can be used for getting the correct posts.

I'm thinking the page URL should be something like learn.wordpress.org/version/5.9 where 5.9 is the taxonomy term used for filtering. If no taxonomy term is specified then it should default to whatever the current version of WordPress is according to the WordPress.org API.

In terms of page layout - for courses, workshops, and social learning spaces we can use the same as what we have on the home page of the site already, but we would need a new block to display lesson plans that somewhat matches what we have on the existing lesson plan archive.