Declining, but still non-trivial. We dropped IE10 support when we stopped doing IE9 a year or so ago because they both had similarly insignificant numbers, and

Declining, but still non-trivial. We dropped IE10 support when we stopped doing IE9 a year or so ago because they both had similarly insignificant numbers, and the opportunity cost of supporting them was too high. IE11/Edge are also showing fairly similar numbers, which suggests edge uptake is slow, but even factoring in the extra hours, the bugs they generate (usually weird flex issues in both cases) we still effectively make more money by supporting them than not.