No. Not anymore. I rely a lot on USB OTG to transfer files between my phone & my USB-stick, and was gutted when an update took that option from my previous HTC.

I haven't got a clue as to how to crack / root my phone, so I ordered the HTC 10. And all was right with the world: I had OTG again!

...until the next (mandatory) update about 2 months in.

Yep, it's f@cked again.

I seriously hate those mandatory updates.

Simple rule: "if it's not broken, then don't fix it......"

Yes, it supports USB OTG.