IE/Edge never implemented keygen, and Blink has removed it. Gecko and WebKit indicated interest in doing so. As such, we've removed it from the specification: https://github.com/whatwg/html/pull/2221 . Note that the parser behavior is retained, but it becomes a HTMLUnknownElement.
Tests for the removal are at https://github.com/w3c/web-platform-tests/pull/4402
*** Bug 216563 has been marked as a duplicate of this bug. ***
Is something needed after this commit?
Yeah, this is done now. Keygen is long dead.
*** This bug has been marked as a duplicate of bug 235867 ***