NVIDIA
now offers a new GeForce Hotfix Driver Version 418.99 (thanks
Hypothermia). Word is this address a problem that could cause a crash or
system hang (Timeout Detection and Recovery):
This is GeForce Hotfix
driver version 418.99 that addresses the following:
Windows 7x64/8.1x64: Fixes random application
crash or TDR introduced in previous GeForce display driver 418.81.
Yeah unless you are crashing I would recommend not upgrading. Hotfix drivers don't get as much testing as normal releases. That's why they are not offering it as an update in GeForce Experience.