The W3C has completed its second round of HTML5 recommendations for implementation. The entire announcement is worth a read because there are interesting tidbits that provide more context and personnel changes within W3C, but the highlights of this recommendation are nicely summed up:
Many of the features added integrate other work done in W3C. The Payment Request API promises to make commerce on the Web far easier, reducing the risks of making a mistake or being caught by an unscrupulous operator. New security features such as Content Security Policy protect users more effectively, while new work incorporated from ARIA helps developers offer people with disabilities a good user experience of their applications.
There are also semantic changes to HTMl elements that are worth noting:
Clarifications and bug fixes bring the HTML Recommendation closer to what has been deployed recently. The definition for the
main element has been updated to support modern responsive design patterns, the
style element can be used inside the
body element. Numerous constraints on code have been loosened, while where necessary for interoperability or security a few have been carefully reinforced.
And, spoiler alert! HTML 5.3 is officially in its first public working draft.
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HTML 5.2 is Done, HTML 5.3 is Coming is a post from CSS-Tricks