There are no updates .March / April was the last. And don't be wishful for updates as I expect any updates will make your bb10 device less usable . The goal here is to get users over to BlackBerry android hence the Blackberry buy back program that is coming
Yes there are. I got a BlackBerry 10 OS update on my BlackBerry Passport that I purchased directly from BlackBerry a few months ago. My wife is still waiting for that same update on her BlackBerry Q10 that she purchased from Rogers.
BlackBerry has also announced that there will be future BlackBerry 10 OS updates.