OnePlus are one of the few manufacturers that let you keep your warranty even if you unlock the bootloader and flash custom ROMs, the brand new OnePlus 3T has now gotten TWRP Recovery support. Therefore, TWRP Recovery is now available for the OnePlus 3T.
TWRP 3.0.2-0 is available on XDA Developers for the OnePlus 3T. A custom recovery is your gateway to flashing custom ROMs, Kernels, flashable zips,root and advanced backups. Check out the XDA Developers Thread for more info. You’ll need an unlocked bootloader before you can install TWRP on your OnePlus 3T.
Note that the OnePlus 3T stock boot image has dm-verify, which means you wont be able to boot if you swipe enable system modifications. That aside, anyone interested in flashing TWRP on their new OnePlus 3T can go ahead to the XDA Developers Thread to grab the recovery and instructions on how to install if you don’t know how to.