Cargo Features

[dependencies]
bootloader = { version = "0.11.8", default-features = false, features = ["bios", "uefi"] }
default = bios, uefi

These default features are set whenever bootloader is added without default-features = false somewhere in the dependency tree.

bios default

Enables mbrman

uefi default

Enables gpt ^3.0.0

bootloader has 3 features without comments.