Changelog

Major releases of the BSP specification. For code-level changes, see the GitHub releases.

v2.1.0 — Current

Cross-stack version alignment

• SDK (TypeScript, Python), CLI, MCP server, and the bsp-website package itself now all share the 2.1.0 line. A BSP consumer can pin one major and know every client surface matches.
• Consolidated error catalog in bsp-spec/docs/ERROR_CODES.md — single source of truth across contracts (78 abort codes), API (31 HTTP/machine codes), and SDK/CLI/MCP client errors.

v1.0.0

Aptos + Arweave migration · MIT license · Public launch

• Migrated execution layer to Aptos (Move smart contracts) for sub-second finality.
• Permanent storage layer on Arweave.
• Full open source release under MIT license.
• Biomarker taxonomy v1 — 210+ biomarkers across 4 levels (Core, Standard, Extended, Device).
• Governance charter — 2-of-3 multisig for protocol upgrades (see BIP-0001).
• SDKs: TypeScript, Python. CLI and MCP server released.

v0.9.0

Move rewrite

• Smart contracts rewritten in Move.
• BEO, IEO, and ConsentToken modules separated into independent Move packages.
• Access control hardened with resource accounts.
• Exchange protocol v2 — bidirectional streaming for wearable data.

v0.8.0

Initial specification draft

• First public draft of the BSP specification.
• Defined BEO, IEO, and BioRecord schemas.
• Introduced ConsentToken model.
• Initial taxonomy covering ~120 core biomarkers.
• Governance process (BIPs) formalized.

---

For upcoming releases, see the roadmap.