The release candidate for 3.5.5 is here: Release 3.5.5-rc.1 · getkirby/kirby · GitHub
We started working on this already a few weeks ago, while the new site was still under construction. It turned into quite a cool release, including an refactored video tag with support for local video files and a great new way to control caching directly from your controllers or templates. Check out the release notes for more. 
Let us know if you find any issues in this release. The final version will be published next Tuesday.