Doctype, HTML 5

Question

i have two questions:

1) was HTML5 released and if yes, when?

2) is doctype HTML 5 in use? or is it better to use one of these: - HTML 4.01 Strict, - HTML 4.

Answer 1

You can find the latest draft on http://whatwg.org/html5.

There's a section about HTML 5's Doctype there.