lower case custom HTML elements not working

[pekeler]

require('react').React.render(
  <logo />,
  document.getElementById("whatever")
);

Reactify gives Lower case component names (logo) are no longer supported in JSX: See http://fb.me/react-jsx-lower-case
It's not a React component, it's my custom HTML element which the linked Gist says are supported now, as does the the release notes for React 0.12.

Using
Reactify 1.0.0
React 0.12.2

[pekeler]

Sorry, I guess this is really an issue for React. Closing...