• Tons of little optimizations!
• Don't skip empty values in extend() (and thus in setState()). Fixes #308.
• Address ownership issue when rendering using reclaimed DOM. Fixes #297.
• Fix issue where re-rendering an intermediary high order component could remove (or fail to add) the associated element.
• When removing old props from the DOM, skip those with empty values.
• Exclusively rely on DOM state when diffing value and checked props. Fixes #326.
• Use strict equality when comparing attribute values against prop values. Fixes #327.
• Upon initial entry into diff, check if the diff should start out in SVG mode. Fixes #331.
• Fix prop cache reset triggering in the wrong case (affected performance)
• Add typings path to package.json. Fixes #318.
• Add support for single level of array children in h() (#313)
• Move both className to class normalization and hashed class stringification out of h() and into the DOM renderer.
  • Tiny possible breakage here: if you were creating VNodes using className and expecting them to have attributes.class instead of attributes.className, that is no longer the case.