On Mon, 20 Mar 2017 at 07:19 Joaquin Oltra Hernandez < jhernandez@wikimedia.org> wrote:
Great news!
Have we considered dropping IE 10 to grade C given Microsoft ended support for it more than a year ago and it seems to be as low as IE 9 (only a 0.24% *[1]*)?
Certainly, that would be the next step. I think that the additional burden of IE10 over IE11 is relatively slight, so I'd probably recommend keeping it in Grade A for at least a few months more, unless there's an urgent need. As always, each non-core feature needs to decide for itself what support level is provided for older browsers.
(Last week, IE10 is down to 0.22%, BTW — lower than IE4, let alone IE6.)
Also, a question. Does this mean we don't need to explicitly list the *es5-shim* any more?
Yes, this will mean that. But not until the patch[*] is merged, at which point depending on es5-shim will become a no-op with a deprecation notice (and I'll do patches to fix up WMF-production extensions).
[*] - https://gerrit.wikimedia.org/r/#/c/340893/