Did you update your mobile device to iOS 9.2.1?

Specifically iPhones & iPads. Sorry, if I haven't mentioned yours. Okay, so, did you update any electronic device that you have?

I recently got an update saying to update my iPhone version 9.2.1. I never updated ever since the last update which was 8.3. I'm stuck with this version forever.
Are you planning to updating it or will you stay with the version you have?

Added (1). *(continue) updating it?

I already did months ago

I have 9.2 but I didn't update to 9.2.1 Everything runs great for me so no reason to update. I would only update if there are new features I want or if it became to outdated, for example you porbably don't want to be running v7 but most apps all run 8 or later so there has to be a reason to update if everything works great as is.

I didn't