0.3.0

Adds the sub-account derivation to the NCF-3 chain (format document section 1.5, registered in the separator table in 2.1): an ai-account root expanded from the PRK, then one 20-byte code per index, encoded like any account code. From one account code the codes of its sub-accounts are recomputable; from a child's code the parent's is not. The wasm package exposes it, and the vectors carry the new outputs. Nothing already published changes.

0.2.0

The NCF-3 crypto library as published on 30 August 2026 under Apache-2.0: the Argon2id and HKDF derivation chain from an account code, the envelope and stream formats with key commitment, the share identity (X-Wing and ML-DSA), and the conformance vectors the browser and the recovery program are checked against.