Dev.Opera article: Get familiar with HTML5! developer,article,html, wsc,html5,web standards curriculum,open web Introduction Most of the web standards curriculum is based on the last stable version of HTML â€” HTML 4.01. The HTML 4.01 spec was completed in 1999, over 10 years ago as of the time of this writing! But unless you've been hiding under a rock for the last year or so, you'll be well aware that there is a new version of HTML in production â€” HTML5! So why have we been teaching you HTML 4.01 in spite of this? In this article we'll answer this question, and many more. We'll give you the essential background you need to know on why HTML5 came about, and where it is up to now. We'll advise you on how it can fit into your learning right now, even if you are a novice web designer or developer, and we will look at some of the main features of HTML5, so you can see what it adds to the already powerful HTML language.