slim.js 3 was released with major improvements: 50% reduced code size (5K gz), faster implementation (overall score faster than react 16.0-rc), and a more friendly api.
documentation: http://slimjs.com github: https://github.com/eavichay/slim.js benchmark comparison: https://rawgit.com/krausest/js-framework-benchmark/1922d6b922816b5b7f5c81fecf7a950df7bc005e/webdriver-ts-results/table.html
slim.js is a new library aiming for future compatibility with browsers, ease of use and performance. It is based on native custom elements API and enables developers to write modern web applications faster and in a declarative manner.