[iptq]

Same experience here, React is actually very good about backwards compatibility, and for anything that is pervasive, codemods via jscodeshift works pretty well too.

I have had to make changes to the build system for the React system I maintain at work, but in no way would I consider it a "rewrite", as much as a "refactor" for a specific part of the codebase while leaving the rest relatively untouched.

In fact, JavaScript moving to ESM has broken MUCH more code than any of the React features listed in the article.