If I learned and mastered html should i learn html5 ? and what are the benefits that i will get from learning html5 ?

Question

Html

Answer 1

Technology, programming languages and standards are constantly evolving. As an IT professional you always need to stay on top of new things, and never stop learning.
HTML5 is nowadays the norm everywhere, so it is the bare minimum level to start from. The committee who is responsible for the specification of this standard, WHATWG, has decided that they will never release a version 6 of HTML. Therefore HTML5 represents the latest modern web technology, that is continuously being improved and built upon.
https://blog.whatwg.org/html-is-the-new-html5