Cuál es la diferencia técnica entre HTML 5 y el html normal?

Answer 1

HTML5 have new Elements for example :
<article>, <aside>, <audio>, <canvas>, <datalist>, <details>, <embed>, <footer>, <header>, <nav>, <output>, <progress>, <section>, <video>, and even more!

Check this post about html vs html5
https://www.sololearn.com/discuss/973144/?ref=app
https://www.sololearn.com/discuss/1119721/?ref=app
https://www.sololearn.com/discuss/1062444/?ref=app

Answer 2

Is it a new version, or something like that?

Answer 3

A new version.