---
title: "Pricing Pipeline Changelog"
canonical: "https://pharos.watch/methodology/pricing-pipeline-changelog/archive/v2/"
description: "Pricing Pipeline Changelog - Pharos methodology version history."
---
# Pricing Pipeline Changelog
[All versions](https://pharos.watch/methodology/pricing-pipeline-changelog/)
## v2.9 - Jupiter V3 freshness fix and exact DexScreener address fallback
**Effective:** 2026-03-20
Stopped rejecting Jupiter V3 fallback quotes based on optional createdAt metadata and upgraded DexScreener enrichment to prefer exact token-address pool lookups before symbol search.
- Jupiter fallback now relies on V3 liquidity gates and peg-aware validation instead of treating optional `createdAt` metadata as a hard freshness cutoff
- Tracked Solana assets can recover through Jupiter even when V3 responses include old createdAt values alongside current block-level pricing
- DexScreener fallback now prefers exact chain+address pool lookups when an asset has a resolvable token address, reducing dependence on noisy symbol search results
- DexScreener search remains as the last fallback path, still capped by the shared request budget and liquidity sanity gates
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.8 - Tertiary full-set FX fallback for multi-source outages
**Effective:** 2026-03-20
Added ExchangeRate-API as a tertiary live full-set FX fallback so production can keep publishing dated fiat references when both Frankfurter and the existing secondary mirrors are unavailable.
- Frankfurter remains the preferred ECB-backed business-day source for the core fiat set
- The existing `fawazahmed0/currency-api` mirrors still serve CNH/RUB/UAH/ARS and can backstop the wider fiat set when Frankfurter is unavailable
- When both current FX paths fail, ExchangeRate-API can now publish a daily full-set fiat snapshot instead of forcing an immediate cached-fallback run
- The About page and pricing methodology now disclose ExchangeRate-API as an externally visible FX reference source
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.7 - Secondary FX full-set live fallback for Frankfurter outages
**Effective:** 2026-03-20
Expanded the existing dated secondary FX mirror path so it can temporarily backstop the wider fiat reference set when Frankfurter is unavailable, preventing repeated cached-only FX runs.
- CNH/RUB/UAH/ARS still use the secondary daily feed as their normal source path
- When Frankfurter fails, the fresher `fawazahmed0/currency-api` mirror can now populate the broader fiat FX set instead of forcing an immediate cached-fallback run
- Per-peg FX metadata preserves calendar-daily cadence and source-date semantics during this live fallback path
- Public health no longer needs to report long consecutive cached-fallback FX runs for a Frankfurter-only outage when the secondary feed is healthy
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.6 - Published DEX challenger snapshots and durable FX freshness metadata
**Effective:** 2026-03-19
Pool challenge and depeg confirmation now read dedicated challenger snapshots built from the full retained DEX pool set, while FX reference freshness is tracked separately from usable cached-fallback freshness.
- Pool challenge no longer depends on dex_liquidity.top_pools_json, so display truncation cannot hide a large challenger pool
- Published challenger snapshots are coverage-gated per stablecoin and fall back safely during migration gaps
- Cached FX fallback runs preserve per-peg source timestamps and source modes instead of refreshing them implicitly
- Health and status now report usable FX freshness, underlying source freshness, and consecutive fallback runs separately
- Non-USD and commodity validation consumers now read shared FX state instead of inferring freshness from cache updated_at alone
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.5 - Kraken and Bitstamp primary pricing, Jupiter Solana fallback, Chainlink reference overlays
**Effective:** 2026-03-19
Added Kraken and Bitstamp as additional direct venue voices in primary consensus, introduced a Jupiter Price API fallback pass for unresolved Solana assets, and overlaid curated Chainlink reference feeds onto supported FX and commodity validation rates.
- Kraken joins primary consensus at weight 2 for supported USD pairs
- Bitstamp joins primary consensus at weight 1 as a lower-weight corroborating CEX venue
- Primary CEX fetches remain grouped so the quarter-hour pricing lane does not add new peak connection fan-out
- Missing Solana prices can now resolve through Jupiter before DexScreener, gated by liquidity and peg-aware plausibility checks
- Curated Chainlink EUR/USD, GBP/USD, JPY/USD, XAU/USD, and XAG/USD feeds can now refresh the FX/reference cache when fresh and aligned
- Status source distribution now reports Kraken, Bitstamp, and Jupiter participation explicitly
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.4 - Pairwise consensus hardening, RedStone freshness gate, authoritative override ordering
**Effective:** 2026-03-19
Hardened primary price selection so agreement requires full pairwise clustering, fixed pegs stay on fixed-peg rules when references are temporarily unavailable, RedStone requires fresh timestamped venue breakdowns, and protocol-redeem overrides remain final after GeckoTerminal probing.
- Transitive source chains can no longer create fake multi-source high confidence
- Equal-size cluster ties now resolve deterministically by weight, spread, peg proximity, then label
- Fixed-peg assets no longer silently fall back into NAV-style 500 bps clustering when peg references are missing
- Stale or aggregate-only RedStone entries are excluded before consensus
- Protocol-backed redemption prices can no longer be overwritten by the GeckoTerminal probe
- Direct-API pools must pass shared TVL sanity gates before they suppress overlapping DeFiLlama pools
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.3 - Per-protocol DEX bridge aggregation and top-pool challenge source split
**Effective:** 2026-03-18
The DEX bridge now persists one aggregated price entry per protocol instead of re-injecting individual top pools as repeated consensus sources. Pool challenge reads large current pools from dex_liquidity.top_pools_json, separating consensus promotion from individual-pool depeg challenge inputs.
- Fluid, Balancer, Raydium, and Orca now contribute at most one promoted consensus source each
- Repeated high-TVL pools from the same protocol can no longer overweight primary consensus by appearing multiple times
- dex_prices.price_sources_json now stores per-protocol aggregates for the pricing bridge
- Pool challenge no longer depends on dex_prices.price_sources_json; it reads current top pools from dex_liquidity instead
- Non-USD tracked stablecoin pairs use peg-reference-aware conversion when deriving direct-API DEX prices
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.2 - Pool confirmation fix, peg-type-aware challenge, source quality gating
**Effective:** 2026-03-17
Fixed critical depeg detection gap where pool-challenge-driven depegs could never be confirmed. Made pool challenge threshold peg-type-aware. Added Pyth confidence and RedStone venue agreement gating. Downgraded CG+DL-only consensus to single-source.
- Pool-level individual prices added as fourth depeg confirmation source, fixing dUSD-like depegs going undetected
- Pool challenge threshold now peg-type-aware: 300 bps for non-USD (was 500 bps for all)
- Pyth feeds with >200 bps confidence excluded from consensus; 100-200 bps downweighted
- RedStone excluded when internal venue agreement < 50%
- CG+DL-only consensus downgraded from high to single-source (illusory agreement)
- NAV tokens (FPI) now visible in peg-summary API with null deviation
- Full source list preserved in consensus label (no more truncation)
- Protocol override divergence warnings logged when >100 bps from consensus
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.1 - Consensus honesty: independent DL list price, GeckoTerminal probe, pool challenge
**Effective:** 2026-03-16
Replaced the DL coins API (which mirrored CoinGecko data, creating illusory 2-source agreement) with the independent DL stablecoins list price. Added GeckoTerminal pool-level cross-check for single-source CG-only assets. Added pool challenge guard that downgrades confidence and replaces price with TVL-weighted pool average when large DEX pools diverge from soft-only consensus.
- Dropped DL coins API from primary consensus: it returned CG-sourced data, making CG+DL agreement tautological
- Added DefiLlama stablecoins list price (weight 1) as a genuinely independent aggregator voice
- Added GeckoTerminal pool probe (weight 1) for single-source CG-only assets with $10K TVL gate
- Pool challenge guard: downgrades soft-only high confidence to 'low' when any $100K+ TVL DEX pool diverges ≥500 bps
- Pool challenge price correction: replaces soft consensus price with TVL-weighted mean of all qualifying individual pool prices
- DEWS scoring suppresses degradation bonus for high→single-source transitions to prevent alert spikes
- ~130 assets retain genuine high confidence via CG+DL-list agreement; ~27 gain GT cross-check
Origin: Contemporaneous release record
Commits: Commit provenance not recorded
## v2.0 - Multi-source consensus with oracle, CEX, and on-chain pricing
**Effective:** 2026-03-14
Upgraded from 2-source cross-validation (CG+DL) to an 8-source weighted consensus system. Added Pyth, Binance, Coinbase, RedStone oracles, Curve on-chain pricing, and promoted DEX price observations to primary voices. N-source clustering replaces simple comparison.
- 8 independent price sources with per-source circuit breakers and configurable weights
- Consensus algorithm clusters sources within 50 bps, picks highest-weight in largest cluster
- Authoritative protocol-redemption overrides for wrapper assets (cUSD, iUSD, crvUSD)
- 4-pass enrichment pipeline for assets still missing prices after primary consensus
- Price confidence tagging: high (2+ agree), single-source, low (disagree), fallback
- CoinMarketCap enrichment optimized from per-slug to batch listings endpoint
Origin: Contemporaneous release record
Commits: Commit provenance not recorded