T-mobile LG G Stylo (LG-H631) is getting updates to Android 6.0 (Software Version:H63120b) today.
According to T-Mobile,The Firmware update LG Stylo (LG-H631) has already begun and owners of the devices will receive it between March 7 and March 21 via OTA.
Here is the Stock LG H631 firmware: H63120b kdz
Model: LG H631TN
Android 6.0 M
The update takes the phone to software version H63120b. The update weighs in at 767MB