Paddling in the murky bits of the byte stream
The combination of these two things namely the introduction of new attributes and the replacement of old elements give Html5 the ability to pass all tests and the certainty that it will be widely used. The new version is compatible to all older versions and can be installed to all browsers that use this type of documents. So if you think that it will help you work better, you should know that it doesn't require any specific installation or download that might not be compatible to your computer. It is easy to learn Html5 and it will certainly make your life easy, too.