Is it safe to change to the HTML5 DOCTYPE?

doctype, html, validation

Solution

Yes you can change your `DOCTYPE`,it will not affect anything that you have already done.In `HTML 5` you will get some new features which you can use for your future purpose.Just check this link and you will get some idea about the features present in HTML 5

Problem

My site is currently using: ``` <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> ``` However, things like Facebook plugins are only valid in HTML5. So, is it safe to change my DOCTYPE to `<!DOCTYPE html>`? Will this affect anything?

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