If you want to invest time and support IE8-10 then you or your team mates can do it, but Microsoft has officially ended support for IE8, IE9 and IE10 so NO; even users with dissabilities should update their systems and browsers to support latest standards.
I can agree just for supporting IE11 for now (maybe at least until next year) but not older version; is a much waste of resources and dev hours plus count the fact that these browsers need extra effort and time for proper accessibility features to work in the first place.
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If you want to invest time and support IE8-10 then you or your team mates can do it, but Microsoft has officially ended support for IE8, IE9 and IE10 so NO; even users with dissabilities should update their systems and browsers to support latest standards.
I can agree just for supporting IE11 for now (maybe at least until next year) but not older version; is a much waste of resources and dev hours plus count the fact that these browsers need extra effort and time for proper accessibility features to work in the first place.