Resolved issue #3102026: Very slow responses with a lot of nodes
Also introduced the requirement to use the page cache module and the dynamic page cache module. If a term listing page with restricted access will be hit, the page cache kill switch will trigger. This will improve performance a lot. On our sites with a lot of nodes a page load takes around 600ms from the page cache.
First official twig-branch release.
It uses now twig template for rendering. (Produces same markup as the old-style markup-function from the 8.x-1.x branch)
Issue #3099249: New Twig template
Issue #2852581 by neffets: Default values for fields of type iframe are not saved, transfer from the 8-1 branch