Cargo Features

[dependencies]
substrate-state-machine = { version = "1.15.3", default-features = false, features = ["std"] }
default = std

The std feature is set by default whenever substrate-state-machine is added without default-features = false somewhere in the dependency tree.

std default

Enables std of parity-scale-codec

crates.io

and std of frame-support ^37.0.0 and hash-db

frame-support:

substrate

and std of ismp, pallet-ismp, primitive-types ^0.12.2, scale-info, serde, sp-consensus-aura ^0.40.0, sp-consensus-babe ^0.40.0, sp-runtime ^39.0.0, and sp-trie ^37.0.0

ismp:

polytope labs