"AMBCP 453 2021" wasn’t a software version. It was a disguised as a filename.
AMIBCP 4.53 is a widely used AMI BIOS Configuration Program specifically designed for editing and unlocking hidden features in Aptio 4 UEFI BIOS amibcp 453 2021
(AMI BIOS Configuration Program) is a specialized utility developed by American Megatrends International (AMI) . It serves as the premier tool for BIOS engineers and system integrators to modify the setup configuration of AMI-based UEFI firmware. The version 4.53.1010, widely circulated and utilized in 2021, represents a specific build of the 4.x architecture designed to handle the complexities of modern UEFI structures. "AMBCP 453 2021" wasn’t a software version
likely refers to a specific modern use case or a "re-release" found in community modding forums. widely circulated and utilized in 2021