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Update Private MMF approach and use cases cards #206

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Update Private MMF approach and use cases cards #206

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893210e
Bump review date of patterns (compliance monitoring and client authn)
cygnusv Sep 30, 2026
7286f08
Update private MMF use case
cygnusv Sep 30, 2026
d091325
Update private MMF approach card
cygnusv Sep 30, 2026
6fcbc1f
Cross-ref private MMF in Funds & Assets domain card
cygnusv Sep 30, 2026
8b249ec
Fix private MMF approach card
cygnusv Oct 1, 2026
4296d1a
Clarifications to MMF approach card
cygnusv Oct 1, 2026
7179e01
RFCs to #206
cygnusv Oct 1, 2026
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3 changes: 3 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -4,6 +4,9 @@ All notable changes to the EthSystems Map are documented here.

## [Unreleased]

- fix(approach): [Private Money Market Funds](approaches/approach-private-money-market-funds.md): Phase 1 review for the MMF approach cycle. Stable- vs floating-NAV yield, aggregates at the fund's cadence, disclosure-key custody instead of threshold NAV opening, investor-side vs portfolio compliance, maturity corrected to `documented`, three new comparison rows, a conditional recommendation, and new open questions (collateral as a future extension). Links: `private-vaults` removed; `erc3643-rwa` and `private-mtp-auth` added.
- fix(use-case): [Private Money Market Funds](use-cases/private-money-market-funds.md): fills Additional Context, scopes Rule 2a-7 to registered funds, updates gates after the 2023 amendments, cross-links open questions to the approach card, and lists it in the [Funds & Assets](domains/funds-assets.md) domain.
- chore(pattern): re-review [Private Client Authentication for Institutional EOAs](patterns/pattern-private-mtp-auth.md) and [Compliance Monitoring](patterns/pattern-compliance-monitoring.md); no content change.
- feat(pattern): [Selective Disclosure](patterns/pattern-regulatory-disclosure-keys-proofs.md) adds standing register disclosure, a second mode in which a register of record (such as a transfer agent) receives a continuous encrypted feed and rebuilds beneficial ownership for any point in time without holder cooperation. It covers the key, protocol steps, the in-circuit ciphertext constraint and the added threat-model entries, and flags feed granularity as an open trade-off.
- feat(pattern): [ERC-3643 Tokenized RWAs](patterns/pattern-erc3643-rwa.md) adds a confidentiality-boundary section: the policy layer (claim topics, trusted issuers, ONCHAINID claims) is reusable, and the execution layer (`balanceOf`, `identity`, `isVerified`, `canTransfer`) is replaced.
- chore(pattern): re-review [Shielding](patterns/pattern-shielding.md), [Private Shared State (FHE)](patterns/pattern-private-shared-state-fhe.md) and [TEE Key Manager](patterns/pattern-tee-key-manager.md) against the Private Money Market Funds approach; no content change.
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