One thing I find strange about the new documentation is how React.createElement is considered a "legacy API". Doesn't JSX transpile into calls to that function anyway?

This worries me a bit because some React wrappers for ClojureScript expose macros that essentially compile to React.createElement() calls, which are now labelled as a legacy API.

It also looks like Class Components are officially deprecated, given that the documentation explicitly states they are not recommended for use in new code.