Which tags are no longer valid in html5?

Related questions

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2. Does Safari support WebGL?
3. What is canvas and SVG?
4. Is Vulkan better than OpenGL?
5. How do you get the rendering context of a canvas in HTML?
6. What does canvas tag do in HTML?
7. Is canvas a polyester?
8. What method is used to start drawing on the canvas?
9. What is 2d context in html5?
10. What is the canvas API?

Tags

1. #thead
2. #completely
3. #object
4. #allowed
5. #colgroup
6. #html4
7. #legend
8. #tbody
9. #table
10. #html5
11. #input
12. #caption
13. #tfoot
14. #iframe
15. #attributes
16. #removed
17. #longer