HTML 5.1 Is Here
Written by Ian Elliot   
Monday, 07 November 2016

When you think back to the days when HTML 5 was the exciting new technology that was going to save us all, it is something of a shock to realize that HTML 5.1 slips in almost unnoticed as an official web standard on 1st November. 


The heat has gone out of the HTML revolution and now all we have are incremental changes to the core markup. Most of the interesting things are going on outside of HTML in the form of new web technologies. When you think about it then it is a mystery why we got so excited about a markup language at all. There were some key new features in HTML 5, like Canvas and the ability to play videos and sound media, but overall HTML 5 was a bit of a yawn. So it is with HTML 5.1.

The new features are: 


  • The picture andsrcset attributes allow responsive image selection.
  • The details andsummary elements enable authors to provide extended information that users can choose whether to read.
  • The menuitem and type="context" attribute value enable authors to add functionality to the browser’s context menu.
  • The requestAnimationFrame API allows for more efficient animation.
  • enqueueJob and nextJob help explain Promise resolution in terms of microtasks.
  • The rev attribute for links, primarily to support RDFa (previously defined in HTML 4).
  • HTMLMediaElement and srcObject objects.
  • Enable cross-origin track and EventSource and cross-origin content for ImageBitmap in canvas.
  • event-source-error, event-track-error and event-track-load events for media fetching.
  • onrejectionhandled and onunhandledrejection and APIs for tracking promise rejection.
  • HTMLTableCaptionElement, HTMLTableSectionElement, HTMLTableRowElement, for HTML table elements.
  • history.scrollRestoration to control where a users' view is directed when navigating through their history.
  • IDL [SameObject], for some objects that return collections.
  • Add "noopener" to rel and window to allow for browsing contexts to be separated.
  • nonce attribute on script and style to support the use of Content Security Policy.


All we have to do now is wait for the browser makers to update the rendering engines. Look out for HTML 5.2 at the end of next year. 



More Information

Related Articles

HTML5 Is A Finished W3C Standard 

W3C Announce HTML5 To Be Ready Nearly A Decade Early

Which HTML5? - WHATWG and W3C Split

The One Addition That Would Make HTML5 Great

No more version numbers for HTML 


To be informed about new articles on I Programmer, sign up for our weekly newsletter, subscribe to the RSS feed and follow us on, Twitter, FacebookGoogle+ or Linkedin



GitHub Sees Exponential Rise In AI

Developers are flocking to AI creating an explosion of generative AI activity in open source. The 11th annual Octoverse report, unveiled at last week's GitHub Universe event recorded 65K public g [ ... ]

GameMaker Free For Non-Commercial Use

GameMaker, for creating 2D platform games and now part of the Opera family, has made a change to its prices and terms and it is good news. GameMaker is now free for non-commercial purposes on all [ ... ]

More News




or email your comment to:

Last Updated ( Friday, 11 November 2016 )