Verizon Update Available for Thunderbolt

[leeco]

My phone's been spontaneously shutting down & restarting, lately. So, I checked to see if there was an update that I needed. Well the only software update I've found is from Verizon, not HTC. Has anyone done this update. Will it keep me from being able to root, later, if I choose to? The file name is as follows: Mecha_VERIZON_WWE_1.13.605.7-1.12.605.6
Size is 35.649 MB

Any experiences or thoughts? TIA