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.