No projects in production use it so we should explore phasing this out of the codebase to give us less code to maintain.
= Pre sprint checklist
[x] Check in with the wikivoyage community if they are happy with the existing state of showing related articles in the footer.
[x] Notify mediawiki-l that we will no longer support showing related pages in the sidebar
= A/C
[x] T164765 is resolved meaning Wikivoyage can show more than 3 related articles
[x] Related articles always show in the footer
[] wgRelatedArticlesShowInFooter is removed from the extension as a configuration option
[] Bump version number this is a breaking change
[] Remove mediawiki-config variables (cleanup after yourself)
= Post merge
[] Update the documentation on https://www.mediawiki.org/wiki/Extension:RelatedArticles
= Developer notes
# After the sidebar-related code is removed, there'll be no reason to distinguish the footer-related code, i.e. RelatedArticles will only be shown in the footer. We should reflect this in the codebase by renaming FooterHooks to Hooks (and other related changes).