It is guaranteed updates through October of 2018 and security updates through at least October of 2019, meaning it'll be up to date through at least 22 months from now. My experience with having used the XL for the past 15 months has been phenomenal. I primarily use it in the upper midwest, lots of ruralness and Verizon is the only carrier that doesn't blow out here (they're actually really good, but everyone else sucks). Pixel XL has been a great phone for me. I just sold mine to my friend on Friday, but I absolutely loved it.