I wondered what changed since we got version 7.50 last October. I found this on their website (slightly edited to remove space and an example). Looks good to me!
BootRacer 7.70 New Features
February 27 2019 BootRacer 7.70!
Improved Startup Control
New screen: “Undo Journal” allows to review all changes and restore back to the previous state.
Improved Ultimate Services Optimizer.
New “Favorites list” allows you to easily monitor your important services.
Ultimate Services Optimizer can change the services, protected by service manager.
Fixed bug with error on executing some 64-bit applications.
Fixed “hang up” during boot bug.