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Changelog

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Unreleased

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Changed

• feat(use-case): Broadened Private Authentication beyond institutional KYC to cover governance and national identity use cases
• feat(approach): Restructured Private Authentication Approach with credential-source taxonomy and validated deployment references

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Added

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Approaches and Patterns

• feat(approach): Private Money Market Funds - Privacy-preserving MMF operations with ZK NAV proofs
• feat(pattern): EY: Starlight - Solidity transpiler for private on-chain state
• feat(pattern): Network-Level Anonymity - Transport-layer sender anonymity (Tor, mixnets, private RPC, TEE)
• feat(pattern): TEE-Assisted Network Anonymity - TEE+secret-sharing for low-latency sender anonymity
• feat(pattern): Private Shared State - Multi-party private state (FHE, MPC+ZK, TEE)
• feat(approach): Restructured Private Trade Settlement - Single-chain and cross-chain approaches with trade-off matrices (#77)
• feat(pattern): Enhanced Hybrid TEE + ZK Settlement with trust framework and PoC learnings (#79)
• feat(approach): Enhanced Private Bonds with PoC learnings and coprocessor model analysis
• feat(approach): Privacy Standards Survey - Standards catalog and gap analysis (#64)
• feat(pattern): Compliance Monitoring - Transaction screening with privacy-preserving audit (#73)

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Use Cases

• feat(use-case): Private Read - Blockchain query privacy
• feat(use-case): Private Corporate Bonds - Capital formation privacy
• feat(use-case): Private Government Debt - Sovereign/municipal bonds
• feat(use-case): Private FX - Cross-border settlement privacy
• feat(use-case): Private Stocks - Tokenized equity
• feat(use-case): Private Commodities - Commodity trading
• feat(use-case): Private Repo - Repurchase agreements
• feat(use-case): Private Money Market Funds - Yield-bearing funds
• feat(use-case): Private Treasuries - Corporate treasury
• feat(use-case): Private Payments - Payment rails
• feat(use-case): Private Oracles - Data feed privacy
• feat(use-case): Private Messaging - Interbank communication

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Patterns and Infrastructure

• feat(pattern): L2 Privacy Evaluation Framework - Institutional L2 comparison methodology
• feat(pattern): Cross-chain Privacy Bridge - Privacy-preserving cross-chain assets
• feat(pattern): Stateless Plasma Privacy - Client-side proving (Intmax-style)
• feat(pattern): vOPRF Nullifiers - Threshold vOPRF-based nullifier generation (#61)
• feat(pattern): Modular Privacy Stack - Four-layer privacy architecture (#54)
• feat(pattern): Hybrid Public-Private Modes
• feat(pattern): Private Transaction Broadcasting (#43)
• feat(pattern): TEE-Based Privacy (#44)
• feat(pattern): Threshold Encrypted Mempool (#45)

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Vendors

• feat(vendor): TACEO Merces - MPC + ZK for private stablecoin transfers
• feat(vendor): Fhenix - FHE privacy (#32)
• feat(vendor): Space and Time (#46)

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Infrastructure and Tooling

• feat(ci): Enhanced AI content quality guardrails (#58)
  • Vale prose linter with IPTF styles
  • GLOSSARY.md term consistency checker
  • JSON Schema frontmatter validation
  • Husky pre-commit hooks
  • LLM-based content review tool
• feat(ci): Pattern validation workflow (#40)
• docs: Q1 2026 PRD with sprint planning (#39)
• docs: CHANGELOG.md and weekly summary script (#49)
• docs: weekly-updates directory (#59)

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Fixed

• fix(pattern): Include trade-offs around handling stock splits in ERC-3643 (#81)
• fix(refs): Updated Private Bonds PoC links to ethereum/iptf-pocs
• fix(pattern): Required frontmatter fields across all patterns (#42)

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0.2.0 - 2025-12-19

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Added

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Patterns

• feat(pattern): TEE Key Manager (#33)
• feat(pattern): EIL - Encrypted Inline Ledger (#26)
• feat(pattern): FOCIL-EIP7805 (#26)
• feat(pattern): Lean Ethereum (#26)
• feat(pattern): OIF - Optimized Integrity Framework (#26)
• feat(pattern): Noir Private Contracts (#21)

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Vendors and Approaches

• feat(vendor): Paladin (#19)
• feat(vendor): State Labs - Tx Shield, OpenTMP LLM, Collab-Key (#7)
• feat(vendor): Soda Labs
• feat(vendor): Miden (#18)
• feat(approach): Private Broadcasting (#6)
• feat(approach): Private Bonds

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Jurisdictions and Documentation

• feat(jurisdiction): EU Data Protection (#8)
• docs: GLOSSARY.md - Privacy terminology (#5)

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Changed

• refactor: Split patterns directory into patterns + approaches (#2)

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Fixed

• fix(pattern): DvP ERC-7573 updates (#31)
• fix(use-case): Private-auth - Revocation and zk-TLS mechanism
• fix(docs): Glossary - Clarified core privacy concepts (#29)
• fix(docs): ZKsync naming standardization (#20)

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0.1.0 - 2025-10-06

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Added

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Patterns

• 20+ privacy patterns covering ZK, MPC, TEE, and stealth addresses

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Use Cases

• Private authentication
• Private bonds
• Private derivatives
• Private RWA tokenization
• Private stablecoins

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Domains

• Custody
• Data oracles
• Funds and assets
• Identity and compliance
• Payments
• Trading

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Jurisdictions

• DE eWpG
• EU MiCA
• International Banking Secrecy
• US SEC

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Vendors

• Aztec
• Chainlink ACE
• Curvy
• Fireblocks
• Miden
• Privacy Pools
• Railgun
• Renegade

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Documentation

• GLOSSARY.md with standardized terminology
• CC0 public domain license