Cargo Features

[dependencies]
bp-header-chain = { version = "0.18.1", default-features = false, features = ["std"] }
default = std

The std feature is set by default whenever bp-header-chain is added without default-features = false somewhere in the dependency tree.

std default

Enables std of bp-runtime, parity-scale-codec, finality-grandpa, frame-support, scale-info, serde, sp-consensus-grandpa, sp-core, sp-runtime, and sp-std

serde:

Provide impls for common standard library types like Vec<T> and HashMap<K, V>.
Requires a dependency on the Rust standard library.

bp-header-chain has 2 features without comments.