ISO 690 style update for 2021 (ISO 690:2021)

Hello, I found an earlier version of the ISO 690 output style and would like to know if can be updated. It was made available to EndNote users in 2013. I am noticing significant differences between this output style and the examples I am seeing on academic sites for more recent versions of ISO 690. There is an updated Citation Style Language (CSL) citation style for ISO 690. I tried to find out if there was a way to convert this open source .csl output style to propriety .ens and have read in all the entries I found that it is not yet possible.