Don't you just love these trickle updates? Little update here, little update there – but never anything major. It's all the excitement of getting an OTA, with none of the benefit! And that's what today's T-Mobile One S update is all about: security enhancements. That's it. Nothing more.
In order to pull the update, you'll need to meet the normal requirements: stock, unrooted system, at least 50% battery, blah blah blah. This package size is a around 49MB, so it shouldn't take all that long to download and get installed. Past that, enjoy your new and improved system, now with 100% more security!
The OTA will be rolling out from now until February 28th, so don't sweat if it's not there right now.