Welcome to the reworked kernel.org website. We have switched to using Pelican in order to statically render our site content, which simplifies mirroring and distribution. You can view the sources used to build this website in its own git repository.
Additionally, we have switched from using gitweb-caching to using cgit for browsing git repositories. There are rewrite rules in place to forward old gitweb URLs to the pages serviced by cgit, so there shouldn't be any broken links, hopefully. If you notice that something that used to work with gitweb no longer works for you with cgit, please drop us a note at firstname.lastname@example.org.