Now that version 2021 is firmly established, I am releasing a new version of my crib sheet here. The biggest change is the recommendation to use @thomas_pronk’s PsychoPolyFill instead of the code_JS statements recommended in my 2020 crib sheet.
If you are using a 2021 version prior to 2021.1.3 I strongly recommend that you update to 2021.1.4.
Thanks @wakecarter! With the PsychoPolyfill I’m experimenting with having issues reported in the GitLab issue tracker, though I’m not 100% sure whether that’s better than in a forum thread. For more info, see: Thomas Pronk / demo_polyfill · GitLab
Hello! could I possible suggest we add this link to the original post at the top? I find myself scrolling a lot to find the up to date crib sheet 
Done