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Pharos

Redemption Backstop Changelog: v3 archive

Historical release evidence. Return to current versions and the complete history index.

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Redemption Backstop Changelog: v3 archive version history

Use this changelog to trace how Pharos changed the related scoring, data-source, threshold, or interpretation rules over time. Entries record the contract active at each release; archived rules are retained so historical charts and citations can be read against the rules active at the time.

Latest version

v3.997May 12, 2026

Redemption coverage expansion and documented-bound upgrades

Reviewed redemption coverage expands across issuer rails, NAV wrappers, queue exits, PSM routes, collateral redemptions, and protocol conversions, while older reviewed routes with explicit terms are promoted from heuristic to documented-bound capacity.

Impact snapshot

  • BENJI, WTGXX, VBILL, JTRSY, USTBL, EUTBL, bIB01, bC3M, CADD, MYRC, KRWQ, and SOFID now carry source-reviewed offchain issuer or platform redemption routes
  • stUSDS, stcUSD, sBOLD, msY, yUSD, sAID, and ZYS now carry source-reviewed wrapper, vault, or protocol-conversion routes
  • ACRED, bUSD0, IST, uUSD, ZSD, hyUSD, and fUSD now carry source-reviewed queued, PSM, collateral, or protocol-conversion routes
  • ZARP, CETES, CGO, DGLD, DUSD Alto, USSD, and USDP move from low-confidence heuristic capacity into documented-bound coverage based on reviewed public route terms
v3.997May 12, 2026

Redemption coverage expansion and documented-bound upgrades

Reviewed redemption coverage expands across issuer rails, NAV wrappers, queue exits, PSM routes, collateral redemptions, and protocol conversions, while older reviewed routes with explicit terms are promoted from heuristic to documented-bound capacity.

  • BENJI, WTGXX, VBILL, JTRSY, USTBL, EUTBL, bIB01, bC3M, CADD, MYRC, KRWQ, and SOFID now carry source-reviewed offchain issuer or platform redemption routes
  • stUSDS, stcUSD, sBOLD, msY, yUSD, sAID, and ZYS now carry source-reviewed wrapper, vault, or protocol-conversion routes
  • ACRED, bUSD0, IST, uUSD, ZSD, hyUSD, and fUSD now carry source-reviewed queued, PSM, collateral, or protocol-conversion routes
  • ZARP, CETES, CGO, DGLD, DUSD Alto, USSD, and USDP move from low-confidence heuristic capacity into documented-bound coverage based on reviewed public route terms
Details

Impact notes

  • BENJI, WTGXX, VBILL, JTRSY, USTBL, EUTBL, bIB01, bC3M, CADD, MYRC, KRWQ, and SOFID now carry source-reviewed offchain issuer or platform redemption routes
  • stUSDS, stcUSD, sBOLD, msY, yUSD, sAID, and ZYS now carry source-reviewed wrapper, vault, or protocol-conversion routes
  • ACRED, bUSD0, IST, uUSD, ZSD, hyUSD, and fUSD now carry source-reviewed queued, PSM, collateral, or protocol-conversion routes
  • ZARP, CETES, CGO, DGLD, DUSD Alto, USSD, and USDP move from low-confidence heuristic capacity into documented-bound coverage based on reviewed public route terms
  • Coverage rises to 264 configured redemption routes, with route-family totals now at 124 offchain-issuer, 57 stablecoin-redeem, 32 collateral-redeem, 34 queue-redeem, 10 psm-swap, and 7 basket-redeem
Commit provenance not recorded
    v3.996May 12, 2026

    Stablecoin audit route coverage expansion

    Comprehensive review of recently added stablecoins adds source-reviewed redemption routes for audited wrappers, Nest vaults, DUSD, mRe7YIELD, DJED, and SMARDEX USDN while refreshing OnRe and Hyperbeat route terms.

    • USDCx, Spark Savings USDT/USDC, Gauntlet USDC Core/Prime, Yearn yvUSDC, Aave sGHO, and the MEV Capital Falcon senior tranche now carry modeled protocol redemption or NAV-exit routes
    • DUSD and mRe7YIELD now carry offchain/platform redemption routes; DJED and SMARDEX USDN now carry collateral-redemption routes; nTBILL, nBASIS, nOPAL, and nWISDOM now carry queued Nest redemption routes
    • OnRe redemption terms now reflect weekly capacity up to 2.5% NAV and a 25 bps fee, while hbUSDT reflects instant 0.5% or classic no-fee redemption timing
    • Coverage rises to 238 configured redemption routes, with route-family totals now at 112 offchain-issuer, 50 stablecoin-redeem, 28 collateral-redeem, 32 queue-redeem, 9 psm-swap, and 7 basket-redeem
    Details

    Impact notes

    • USDCx, Spark Savings USDT/USDC, Gauntlet USDC Core/Prime, Yearn yvUSDC, Aave sGHO, and the MEV Capital Falcon senior tranche now carry modeled protocol redemption or NAV-exit routes
    • DUSD and mRe7YIELD now carry offchain/platform redemption routes; DJED and SMARDEX USDN now carry collateral-redemption routes; nTBILL, nBASIS, nOPAL, and nWISDOM now carry queued Nest redemption routes
    • OnRe redemption terms now reflect weekly capacity up to 2.5% NAV and a 25 bps fee, while hbUSDT reflects instant 0.5% or classic no-fee redemption timing
    • Coverage rises to 238 configured redemption routes, with route-family totals now at 112 offchain-issuer, 50 stablecoin-redeem, 28 collateral-redeem, 32 queue-redeem, 9 psm-swap, and 7 basket-redeem
    Commit provenance not recorded
      v3.995May 11, 2026

      Non-USD and commodity coverage expansion

      Seven newly tracked non-USD and commodity stablecoins now publish source-reviewed redemption routes, including Mento CDP collateral exits for GBPm, JPYm, and CHFm.

      • GLDY, VNXAU, XAGm, and EUROe now carry documented-bound offchain issuer redemption routes with reviewed source links and access, fee, settlement, and capacity caveats
      • GBPm, JPYm, and CHFm now carry collateral-redeem routes into USDm-backed Mento CDP collateral, aligned with the new Mento CDP reserve-sync mode
      • Coverage rises to 202 configured redemption routes, with route-family totals now at 106 offchain-issuer and 26 collateral-redeem
      Details

      Impact notes

      • GLDY, VNXAU, XAGm, and EUROe now carry documented-bound offchain issuer redemption routes with reviewed source links and access, fee, settlement, and capacity caveats
      • GBPm, JPYm, and CHFm now carry collateral-redeem routes into USDm-backed Mento CDP collateral, aligned with the new Mento CDP reserve-sync mode
      • Coverage rises to 202 configured redemption routes, with route-family totals now at 106 offchain-issuer and 26 collateral-redeem
      Commit provenance not recorded
        v3.994May 10, 2026

        Conservative queued coverage for stkGHO and USDRIF

        Aave Umbrella stkGHO and RIF On Chain USDRIF now publish source-reviewed queued redemption routes with eventual-only capacity semantics.

        • stkGHO is modeled as a queued wrapper exit into GHO through Aave Umbrella's cooldown and withdrawal-window process, with slashing risk retained in route notes
        • USDRIF is modeled as a queued RIF-collateral redemption route because broad holder redemption is settlement-cycle based, while outside-settlement redemption is limited to free USDRIF
        • Both routes use documented-bound eventual-only capacity, so they remain visible as reviewed coverage without creating immediate live-capacity evidence for Safety Score liquidity uplift
        Details

        Impact notes

        • stkGHO is modeled as a queued wrapper exit into GHO through Aave Umbrella's cooldown and withdrawal-window process, with slashing risk retained in route notes
        • USDRIF is modeled as a queued RIF-collateral redemption route because broad holder redemption is settlement-cycle based, while outside-settlement redemption is limited to free USDRIF
        • Both routes use documented-bound eventual-only capacity, so they remain visible as reviewed coverage without creating immediate live-capacity evidence for Safety Score liquidity uplift
        Commit provenance not recorded
          v3.993May 10, 2026

          Live redemption telemetry gating and constraints

          Live redemption capacity now carries adapter-declared capacity/freshness context through the API, fails closed on unverified nested freshness unless explicitly allowlisted, and applies live daily limits as scoring capacity constraints.

          • Reserve-sync redemption routes now persist and expose live capacity kind, freshness kind, source timestamp/URLs, settlement delay, queue depth, daily limit, minimum redeem size, and live holder eligibility when adapters emit them
          • Nested live redemption freshness marked `unverified` is no longer scoreable by default; only route-specific allowlisted lower-bound cases can continue to score while retaining the unverified context
          • Adapter-emitted daily redemption limits cap scoring capacity while raw immediate capacity remains visible for context
          Details

          Impact notes

          • Reserve-sync redemption routes now persist and expose live capacity kind, freshness kind, source timestamp/URLs, settlement delay, queue depth, daily limit, minimum redeem size, and live holder eligibility when adapters emit them
          • Nested live redemption freshness marked `unverified` is no longer scoreable by default; only route-specific allowlisted lower-bound cases can continue to score while retaining the unverified context
          • Adapter-emitted daily redemption limits cap scoring capacity while raw immediate capacity remains visible for context
          Commit provenance not recorded
            v3.992Apr 22, 2026

            Tracked wrapper routes inherit severe parent depegs

            Configured tracked wrappers now inherit a severe active-depeg impairment from their parent stablecoin when their peg is explicitly authored through that same parent link.

            • Wrapper routes whose metadata keeps `pegReferenceId === variantOf` now reuse the parent's severe active-depeg exercisability gate instead of remaining scoreable when only the parent has the open depeg row
            • This inherited impairment is scoped only to wrappers that already have a redemption-backstop config in the registry; the rollout does not add new route coverage by itself
            • Safety Score active-depeg caps and Redemption Backstop route impairment now stay aligned for tracked wrappers on the same quarter-hourly/4-hourly runtime clocks
            Details

            Impact notes

            • Wrapper routes whose metadata keeps `pegReferenceId === variantOf` now reuse the parent's severe active-depeg exercisability gate instead of remaining scoreable when only the parent has the open depeg row
            • This inherited impairment is scoped only to wrappers that already have a redemption-backstop config in the registry; the rollout does not add new route coverage by itself
            • Safety Score active-depeg caps and Redemption Backstop route impairment now stay aligned for tracked wrappers on the same quarter-hourly/4-hourly runtime clocks
            Commit provenance not recorded
              v3.991Apr 21, 2026

              AUDF and DOC route coverage

              Forte AUD and Dollar on Chain now publish reviewed redemption routes, extending modeled coverage to one additional offchain issuer rail and one additional BTC-collateral redemption rail.

              • AUDF now carries a documented-bound offchain-issuer redemption route sourced from Forte's PDS, legal terms, and reserve-report page
              • DOC now carries a permissionless collateral-redeem route into RBTC sourced from Money On Chain protocol docs
              • Coverage rises to 179 configured redemption routes, with route-family totals now at 93 offchain-issuer and 23 collateral-redeem
              Details

              Impact notes

              • AUDF now carries a documented-bound offchain-issuer redemption route sourced from Forte's PDS, legal terms, and reserve-report page
              • DOC now carries a permissionless collateral-redeem route into RBTC sourced from Money On Chain protocol docs
              • Coverage rises to 179 configured redemption routes, with route-family totals now at 93 offchain-issuer and 23 collateral-redeem
              Commit provenance not recorded
                v3.99Apr 20, 2026

                Flat/RWA issuer coverage expansion

                Six newly tracked flat/RWA issuer assets join modeled redemption coverage, including whitelisted collateral redemption for Alloy aUSDT and five documented issuer routes.

                • USDon, USDsui, BRLV, USDGLO, and AUDM now publish documented-bound offchain-issuer redemption routes with reviewed source links and access/settlement caveats
                • Alloy aUSDT now publishes a whitelisted collateral-redemption route into XAUT, while live reserve sync reads its Ethereum vault XAUT balance and aUSDT supply for reserve visibility
                • Jiritsu JUSD remains excluded because the priced CoinGecko/CMC JUSD asset resolves to a different token and the official Jiritsu token lacks a usable price/depeg source
                Details

                Impact notes

                • USDon, USDsui, BRLV, USDGLO, and AUDM now publish documented-bound offchain-issuer redemption routes with reviewed source links and access/settlement caveats
                • Alloy aUSDT now publishes a whitelisted collateral-redemption route into XAUT, while live reserve sync reads its Ethereum vault XAUT balance and aUSDT supply for reserve visibility
                • Jiritsu JUSD remains excluded because the priced CoinGecko/CMC JUSD asset resolves to a different token and the official Jiritsu token lacks a usable price/depeg source
                Commit provenance not recorded
                  v3.98Apr 16, 2026

                  Capacity-over-supply clamp, coverage expansion, and runtime hardening

                  Live reserve capacity is now clamped to current supply for scoring, 17 new stablecoins join modeled redemption coverage, and several lower-confidence supply-ratio routes are explicitly tagged as heuristic rather than silently relying on uncited ratios.

                  • Live redemption capacity greater than current supply is now clamped to supply for scoring and surfaces an explicit note; previously only the ratio was clamped while the raw USD amount flowed through unchanged
                  • 17 new stablecoins added to redemption coverage: dEURO, CJPY, wM, ftUSD, USDz, USDSC, Silk, USDAT, USDnr, BUCK, USDH, BRLA, ctUSD, XO, USDK, USDM, and USDKG, spanning collateral-redeem, stablecoin-redeem, basket-redeem, queue-redeem, and offchain-issuer families
                  • Lower-confidence supply-ratio routes (dusd-dtrinity, yousd-yield-optimizer, uty-xsy) now carry explicit `confidence: heuristic` plus reviewed docs rather than silently defaulting to heuristic with no evidence trail
                  • Fee-score breakpoints extracted to named constants and route notes deduplicated end-to-end
                  Details

                  Impact notes

                  • Live redemption capacity greater than current supply is now clamped to supply for scoring and surfaces an explicit note; previously only the ratio was clamped while the raw USD amount flowed through unchanged
                  • 17 new stablecoins added to redemption coverage: dEURO, CJPY, wM, ftUSD, USDz, USDSC, Silk, USDAT, USDnr, BUCK, USDH, BRLA, ctUSD, XO, USDK, USDM, and USDKG, spanning collateral-redeem, stablecoin-redeem, basket-redeem, queue-redeem, and offchain-issuer families
                  • Lower-confidence supply-ratio routes (dusd-dtrinity, yousd-yield-optimizer, uty-xsy) now carry explicit `confidence: heuristic` plus reviewed docs rather than silently defaulting to heuristic with no evidence trail
                  • Fee-score breakpoints extracted to named constants and route notes deduplicated end-to-end
                  Commit provenance not recorded
                    v3.97Apr 15, 2026

                    Redemption backstop code deduplication and boundary test coverage

                    The "strong live-direct route" predicate is now defined once and reused by both the report-card liquidity consumer and the backstop builder, with inline rationale on route family caps and new boundary test coverage.

                    • `isStrongLiveDirectRoute` is now a single shared predicate in `shared/lib/redemption-backstop-scoring.ts` consumed by both `scoreLiquidity` and `buildRedemptionBackstopEntry`, removing the prior drift-prone duplicate definitions
                    • Severe-depeg exclusion behavior is now locked in at the exact 2499 / 2500 bps boundary, live-proxy routes are explicitly confirmed not to survive severe depegs even with permissionless atomic execution, and all capacity-score and route-family cap breakpoints are covered by assertions
                    • No coin-facing scoring semantics changed; this release is test coverage, documentation, and code deduplication only
                    Details

                    Impact notes

                    • `isStrongLiveDirectRoute` is now a single shared predicate in `shared/lib/redemption-backstop-scoring.ts` consumed by both `scoreLiquidity` and `buildRedemptionBackstopEntry`, removing the prior drift-prone duplicate definitions
                    • Severe-depeg exclusion behavior is now locked in at the exact 2499 / 2500 bps boundary, live-proxy routes are explicitly confirmed not to survive severe depegs even with permissionless atomic execution, and all capacity-score and route-family cap breakpoints are covered by assertions
                    • No coin-facing scoring semantics changed; this release is test coverage, documentation, and code deduplication only
                    Commit provenance not recorded
                      v3.96Apr 15, 2026

                      Redemption telemetry validation and route-status fail-closed hardening

                      Live reserve redemption telemetry now fails closed more consistently, and shared config/documentation provenance no longer leaks across expanded route groups.

                      • Paused, degraded, or cohort-limited live route-status telemetry now marks the redemption row impaired instead of publishing a current standalone score
                      • Nested and legacy redemption telemetry fields are validated independently before persistence, preventing malformed nested values from being masked by valid legacy fields
                      • Adapters that are not declared as redemption-capacity sources no longer emit unsupported capacity metadata, and expanded shared route configs now receive per-asset reviewed docs
                      Details

                      Impact notes

                      • Paused, degraded, or cohort-limited live route-status telemetry now marks the redemption row impaired instead of publishing a current standalone score
                      • Nested and legacy redemption telemetry fields are validated independently before persistence, preventing malformed nested values from being masked by valid legacy fields
                      • Adapters that are not declared as redemption-capacity sources no longer emit unsupported capacity metadata, and expanded shared route configs now receive per-asset reviewed docs
                      Commit provenance not recorded
                        v3.95Apr 15, 2026

                        USTB live Superstate liquidity capacity

                        USTB now combines its existing on-chain NAV reserve proof with Superstate's current public liquidity endpoint for bounded redemption-capacity telemetry.

                        • The `ustb-superstate` route now uses reserve-sync metadata instead of the static full-supply eventual model
                        • The `superstate-liquidity` adapter preserves USTB NAV reserve slices while adding current Circle USD and USDC RedemptionIdle liquidity as capacity
                        • If the Superstate liquidity payload is missing or malformed, USTB remains visible but unrated for redemption capacity rather than using NAV/AUM as immediate liquidity
                        Details

                        Impact notes

                        • The `ustb-superstate` route now uses reserve-sync metadata instead of the static full-supply eventual model
                        • The `superstate-liquidity` adapter preserves USTB NAV reserve slices while adding current Circle USD and USDC RedemptionIdle liquidity as capacity
                        • If the Superstate liquidity payload is missing or malformed, USTB remains visible but unrated for redemption capacity rather than using NAV/AUM as immediate liquidity
                        Commit provenance not recorded
                          v3.94Apr 15, 2026

                          frxUSD live reserve capacity and route-status guardrails

                          frxUSD now resolves redemption capacity from fresh Frax balance-sheet telemetry, and live redemption route status can flow from reserve adapters into redemption-backstop scoring.

                          • The `frxusd-frax` route now uses reserve-sync metadata instead of the static full-supply eventual model
                          • Frax balance-sheet redemption capacity emits a current stablecoin capacity amount without reusing reserve-composition ratios as supply-relative capacity
                          • Live reserve redemption telemetry can carry route status and provenance so paused or degraded live routes do not silently score as open
                          Details

                          Impact notes

                          • The `frxusd-frax` route now uses reserve-sync metadata instead of the static full-supply eventual model
                          • Frax balance-sheet redemption capacity emits a current stablecoin capacity amount without reusing reserve-composition ratios as supply-relative capacity
                          • Live reserve redemption telemetry can carry route status and provenance so paused or degraded live routes do not silently score as open
                          Commit provenance not recorded
                            v3.93Apr 15, 2026

                            Long-tail live redemption adapters

                            Additional long-tail redemption routes now use current live reserve telemetry instead of static eventual-capacity assumptions where public APIs or on-chain reads expose bounded capacity.

                            • Felix feUSD, Nerite USND, and Quill USDQ now use same-run Liquity v2 ActivePool debt as direct bounded redemption capacity
                            • fxUSD now consumes f(x)'s protocol debt balances as live proxy capacity, while USDaf uses Asymmetry's timestamped protocol supply as direct current capacity
                            • JupUSD now consumes its public transparency API for current USDC/USDtb holdings and route-status telemetry, retaining the reviewed 10% buffer only as fallback
                            Details

                            Impact notes

                            • Felix feUSD, Nerite USND, and Quill USDQ now use same-run Liquity v2 ActivePool debt as direct bounded redemption capacity
                            • fxUSD now consumes f(x)'s protocol debt balances as live proxy capacity, while USDaf uses Asymmetry's timestamped protocol supply as direct current capacity
                            • JupUSD now consumes its public transparency API for current USDC/USDtb holdings and route-status telemetry, retaining the reviewed 10% buffer only as fallback
                            Commit provenance not recorded
                              v3.92Apr 15, 2026

                              BOLD live Liquity v2 branch debt capacity

                              BOLD now uses the Liquity v2 branch adapter's same-run on-chain ActivePool debt as direct redemption-capacity telemetry.

                              • The `bold-liquity` live reserve config now uses `liquity-v2-branches`, which reads branch collateral balances plus ActivePool branch debt
                              • `bold-liquity` now resolves redemption capacity from fresh reserve-sync metadata instead of the static full-supply model
                              • When the Liquity v2 branch snapshot is unavailable or stale, BOLD remains visible but unrated for redemption capacity rather than falling back to an immediate full-supply estimate
                              Details

                              Impact notes

                              • The `bold-liquity` live reserve config now uses `liquity-v2-branches`, which reads branch collateral balances plus ActivePool branch debt
                              • `bold-liquity` now resolves redemption capacity from fresh reserve-sync metadata instead of the static full-supply model
                              • When the Liquity v2 branch snapshot is unavailable or stale, BOLD remains visible but unrated for redemption capacity rather than falling back to an immediate full-supply estimate
                              Commit provenance not recorded
                                v3.91Apr 15, 2026

                                LUSD live direct capacity telemetry

                                LUSD now uses the Liquity v1 live reserve adapter's same-run on-chain system debt as direct redemption-capacity telemetry.

                                • The `liquity-v1` adapter now publishes nested `metadata.redemption` capacity from `TroveManager.getEntireSystemDebt()` alongside the existing live redemption fee
                                • `lusd-liquity` now resolves redemption capacity from fresh reserve-sync metadata instead of the static full-supply model
                                • When the Liquity on-chain snapshot is unavailable or stale, LUSD remains visible but unrated for redemption capacity rather than falling back to an immediate full-supply estimate
                                Details

                                Impact notes

                                • The `liquity-v1` adapter now publishes nested `metadata.redemption` capacity from `TroveManager.getEntireSystemDebt()` alongside the existing live redemption fee
                                • `lusd-liquity` now resolves redemption capacity from fresh reserve-sync metadata instead of the static full-supply model
                                • When the Liquity on-chain snapshot is unavailable or stale, LUSD remains visible but unrated for redemption capacity rather than falling back to an immediate full-supply estimate
                                Commit provenance not recorded
                                  v3.9Apr 15, 2026

                                  Normalized redemption telemetry and live capacity adapters

                                  Live reserve adapters can now publish normalized redemption telemetry, and Cap cUSD now uses direct vault-capacity telemetry instead of full-supply eventual assumptions.

                                  • Reserve-sync redemption routes prefer nested `metadata.redemption` capacity, fee, freshness, and route-status fields while keeping legacy flat metadata readable
                                  • Live reserve validation rejects malformed or unsupported redemption telemetry before it can reach redemption-backstop scoring
                                  • Cap cUSD now scores against current unpaused available vault balances through the new cap-vault adapter rather than treating full eventual basket redeemability as immediate capacity
                                  Details

                                  Impact notes

                                  • Reserve-sync redemption routes prefer nested `metadata.redemption` capacity, fee, freshness, and route-status fields while keeping legacy flat metadata readable
                                  • Live reserve validation rejects malformed or unsupported redemption telemetry before it can reach redemption-backstop scoring
                                  • Cap cUSD now scores against current unpaused available vault balances through the new cap-vault adapter rather than treating full eventual basket redeemability as immediate capacity
                                  Commit provenance not recorded
                                    v3.8Apr 14, 2026

                                    Active-depeg exercisability gate

                                    Severe active depegs now impair static or non-live-direct redemption routes unless current live-open redemption evidence is available.

                                    • Open depeg rows at or above 2500 bps now mark static, documented-bound, live-proxy, issuer/API, queue, and estimated redemption routes as impaired instead of publishing a normal current score
                                    • Impaired rows keep route metadata visible but set score and effectiveExitScore to null, lower model confidence, and carry a market-implied route-status reason
                                    • Live-direct, dynamic, permissionless, atomic or immediate redemption routes can remain scoreable during severe active depegs because they provide current direct exercisability evidence
                                    Details

                                    Impact notes

                                    • Open depeg rows at or above 2500 bps now mark static, documented-bound, live-proxy, issuer/API, queue, and estimated redemption routes as impaired instead of publishing a normal current score
                                    • Impaired rows keep route metadata visible but set score and effectiveExitScore to null, lower model confidence, and carry a market-implied route-status reason
                                    • Live-direct, dynamic, permissionless, atomic or immediate redemption routes can remain scoreable during severe active depegs because they provide current direct exercisability evidence
                                    Commit provenance not recorded
                                      v3.7Apr 7, 2026

                                      Best-path effective exit model replaces weighted blend

                                      The effective exit score now uses max(dex, redemption) + diversification bonus instead of a weighted blend that penalized coins with one strong exit path and one weak one.

                                      • Effective exit formula changed from `max(dex, dex × 0.55 + redemption × 0.45)` to `max(dex, redemption) + min(dex, redemption) × 0.10`: the best exit path dominates and a second path earns a modest diversification bonus
                                      • Redemption-only coins now use the raw redemption backstop score with no cap or discount, removing the previous `min(70, score × 0.75)` penalty; route family caps (offchain-issuer ≤ 65, queue-redeem ≤ 70) remain as guardrails
                                      • Coins with strong permissionless redemption (DAI, GHO, frxUSD, LUSD, BOLD) see the largest uplift; DEX-only coins are unaffected; CeFi offchain-issuer coins see modest improvement bounded by route family caps
                                      Details

                                      Impact notes

                                      • Effective exit formula changed from `max(dex, dex × 0.55 + redemption × 0.45)` to `max(dex, redemption) + min(dex, redemption) × 0.10`: the best exit path dominates and a second path earns a modest diversification bonus
                                      • Redemption-only coins now use the raw redemption backstop score with no cap or discount, removing the previous `min(70, score × 0.75)` penalty; route family caps (offchain-issuer ≤ 65, queue-redeem ≤ 70) remain as guardrails
                                      • Coins with strong permissionless redemption (DAI, GHO, frxUSD, LUSD, BOLD) see the largest uplift; DEX-only coins are unaffected; CeFi offchain-issuer coins see modest improvement bounded by route family caps
                                      Commit provenance not recorded
                                        v3.6Apr 6, 2026

                                        ZCHF VCHF bridge route added with live bridge-capacity telemetry

                                        Frankencoin ZCHF now models its permissionless onchain StablecoinBridge exit into VCHF instead of remaining uncovered in redemption backstops.

                                        • `zchf-frankencoin` now uses a reviewed `stablecoin-redeem` route for the public ZCHF -> VCHF burn-and-withdraw bridge contract
                                        • The existing Frankencoin collateral-positions reserve adapter now emits the bridge's live VCHF inventory as immediate redeemable capacity telemetry, so fresh hourly reserve sync can drive current bridge-buffer sizing directly
                                        • When live bridge telemetry is temporarily unavailable, the route falls back to a conservative reviewed 1.4% bridge-buffer ratio instead of disappearing entirely
                                        Details

                                        Impact notes

                                        • `zchf-frankencoin` now uses a reviewed `stablecoin-redeem` route for the public ZCHF -> VCHF burn-and-withdraw bridge contract
                                        • The existing Frankencoin collateral-positions reserve adapter now emits the bridge's live VCHF inventory as immediate redeemable capacity telemetry, so fresh hourly reserve sync can drive current bridge-buffer sizing directly
                                        • When live bridge telemetry is temporarily unavailable, the route falls back to a conservative reviewed 1.4% bridge-buffer ratio instead of disappearing entirely
                                        Commit provenance not recorded
                                          v3.5Apr 5, 2026

                                          Telemetry-aware freshness gate for reserve-sync capacity

                                          Adapters that declare capacity telemetry (direct or proxy) or physically emit capacity metadata no longer require scoring-grade freshness evidence to use live capacity data for scoring. The temporal quality is already validated by the isFresh gate.

                                          • iUSD-infiniFi now resolves live-proxy capacity confidence from the infiniFi protocol API instead of falling back to the heuristic 15% ratio, restoring medium model confidence and re-enabling backstop contribution to effective exit scoring
                                          • Any reserve-sync-metadata route whose adapter provides capacity telemetry but uses unverified freshness mode now scores against live capacity data instead of being silently downgraded to a heuristic fallback
                                          • Adapters without declared capacity telemetry or physical capacity metadata still require scoring-grade freshness evidence, preserving the original gate for inferred-capacity routes
                                          Details

                                          Impact notes

                                          • iUSD-infiniFi now resolves live-proxy capacity confidence from the infiniFi protocol API instead of falling back to the heuristic 15% ratio, restoring medium model confidence and re-enabling backstop contribution to effective exit scoring
                                          • Any reserve-sync-metadata route whose adapter provides capacity telemetry but uses unverified freshness mode now scores against live capacity data instead of being silently downgraded to a heuristic fallback
                                          • Adapters without declared capacity telemetry or physical capacity metadata still require scoring-grade freshness evidence, preserving the original gate for inferred-capacity routes
                                          Commit provenance not recorded
                                            v3.4Apr 4, 2026

                                            USD.AI base-token and sUSDai route split

                                            USD.AI no longer overloads the base token and yield token onto one redemption model: base USDai keeps the direct PYUSD-side rail, while sUSDai now has its own documented queued exit.

                                            • Base `usdai-usd-ai` remains a permissionless atomic stablecoin-redeem route scoped to the liquid base token rather than to the yield product
                                            • New `susdai-usd-ai` now models the documented 30-day queued unstake flow back into USDai instead of inheriting base-token semantics
                                            • Because public USD.AI materials do not publish a trustworthy numeric instant-liquidity bound for sUSDai, the new route is scored as documented-bound eventual capacity rather than as a measured immediate buffer
                                            Details

                                            Impact notes

                                            • Base `usdai-usd-ai` remains a permissionless atomic stablecoin-redeem route scoped to the liquid base token rather than to the yield product
                                            • New `susdai-usd-ai` now models the documented 30-day queued unstake flow back into USDai instead of inheriting base-token semantics
                                            • Because public USD.AI materials do not publish a trustworthy numeric instant-liquidity bound for sUSDai, the new route is scored as documented-bound eventual capacity rather than as a measured immediate buffer
                                            Commit provenance not recorded
                                              v3.3Apr 4, 2026

                                              Selective lower-bound recovery for GHO and Reservoir fallback hardening

                                              Two reserve-backed redemption routes now recover from the v3.1 trust-boundary tightening without weakening reserve-sync scoring globally.

                                              • GHO can again use tracked live GSM backing as an immediate redemption lower bound when reserve sync is degraded only because residual issuance outside the configured GSM set remains aggregated
                                              • wsrUSD now falls back to Reservoir's reviewed 25 bps minimum USDC PSM balance when the live balance-sheet API lacks scoring-grade freshness evidence, instead of remaining unrated
                                              • Reserve-sync fallback ratios can now preserve reviewed `documented-bound` confidence and basis metadata instead of being forced into the generic heuristic bucket
                                              Details

                                              Impact notes

                                              • GHO can again use tracked live GSM backing as an immediate redemption lower bound when reserve sync is degraded only because residual issuance outside the configured GSM set remains aggregated
                                              • wsrUSD now falls back to Reservoir's reviewed 25 bps minimum USDC PSM balance when the live balance-sheet API lacks scoring-grade freshness evidence, instead of remaining unrated
                                              • Reserve-sync fallback ratios can now preserve reviewed `documented-bound` confidence and basis metadata instead of being forced into the generic heuristic bucket
                                              Commit provenance not recorded
                                                v3.2Apr 3, 2026

                                                USD.AI redemption rail wording correction

                                                USD.AI's reviewed redemption route now explicitly reflects the live PYUSD-only base-token rail instead of broader multi-stable wording inherited from older docs phrasing.

                                                • USD.AI still models base USDai as a permissionless atomic stablecoin-redeem route, but the reviewed route notes and fee text now state that direct mint and redeem are against PYUSD specifically rather than generic supported stablecoins
                                                • The slower queue remains scoped to sUSDai unstaking only, preserving the existing base-token route semantics while tightening the evidence trail to the live app flow and current issuer guidance
                                                • No live redemption-capacity telemetry is added here because USD.AI's public API does not currently expose a trustworthy base-token redeemable-buffer or redemption-limit feed
                                                Details

                                                Impact notes

                                                • USD.AI still models base USDai as a permissionless atomic stablecoin-redeem route, but the reviewed route notes and fee text now state that direct mint and redeem are against PYUSD specifically rather than generic supported stablecoins
                                                • The slower queue remains scoped to sUSDai unstaking only, preserving the existing base-token route semantics while tightening the evidence trail to the live app flow and current issuer guidance
                                                • No live redemption-capacity telemetry is added here because USD.AI's public API does not currently expose a trustworthy base-token redeemable-buffer or redemption-limit feed
                                                Commit provenance not recorded
                                                  v3.1Mar 30, 2026

                                                  Live-capacity truth-boundary hardening and registry cleanup

                                                  Reserve-backed redemption routes now use stricter live-metadata eligibility, explicit live-direct vs live-proxy confidence, and reviewed source-link guardrails.

                                                  • Reserve-sync capacity now requires fresh `ok` snapshots, no degrading reserve warnings, scoring-grade freshness evidence, and an adapter that explicitly exposes redeemable-capacity telemetry
                                                  • Live-backed routes now distinguish `live-direct` from `live-proxy`, and only direct live capacity can resolve high confidence; `pUSD Plume` is corrected back to a reviewed documented-bound issuer rail instead of a fake dynamic route
                                                  • Reviewed documented-bound and reserve-sync routes now require explicit `docs[]`, unreviewed routes are closed or downgraded, and stored/API snapshot details preserve richer fidelity metadata including capacity basis and live-capacity classification
                                                  Details

                                                  Impact notes

                                                  • Reserve-sync capacity now requires fresh `ok` snapshots, no degrading reserve warnings, scoring-grade freshness evidence, and an adapter that explicitly exposes redeemable-capacity telemetry
                                                  • Live-backed routes now distinguish `live-direct` from `live-proxy`, and only direct live capacity can resolve high confidence; `pUSD Plume` is corrected back to a reviewed documented-bound issuer rail instead of a fake dynamic route
                                                  • Reviewed documented-bound and reserve-sync routes now require explicit `docs[]`, unreviewed routes are closed or downgraded, and stored/API snapshot details preserve richer fidelity metadata including capacity basis and live-capacity classification
                                                  Commit provenance not recorded
                                                    v3.0Mar 24, 2026

                                                    Issuer and route-review medium-confidence tranche

                                                    A final low-effort tranche upgrades the remaining easy issuer-style and route-reviewed assets from heuristic defaults to documented-bound redemption coverage.

                                                    • EURS, GYEN, CADC, the reviewed VNX fiat tokens, TRYB, tGBP, JPYC, AxCNH, IDRT, EUROP, and EURAU now use reviewed documented-bound issuer redemption semantics instead of generic heuristic issuer defaults
                                                    • FPI and GYD now use reviewed documented-bound collateral-redemption semantics rather than remaining low-confidence placeholder routes
                                                    • This tranche adds medium-confidence coverage without introducing new adapter work or changing the route bar for the harder semantics-blocked assets
                                                    Details

                                                    Impact notes

                                                    • EURS, GYEN, CADC, the reviewed VNX fiat tokens, TRYB, tGBP, JPYC, AxCNH, IDRT, EUROP, and EURAU now use reviewed documented-bound issuer redemption semantics instead of generic heuristic issuer defaults
                                                    • FPI and GYD now use reviewed documented-bound collateral-redemption semantics rather than remaining low-confidence placeholder routes
                                                    • This tranche adds medium-confidence coverage without introducing new adapter work or changing the route bar for the harder semantics-blocked assets
                                                    Commit provenance not recorded