Safety Scores Changelog: v4 archive
Historical release evidence. Return to current versions and the complete history index.
What this controls
Safety Scores Changelog: v4 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.
Primary references
v4.1Liquidity weight increase + reclassificationsFeb 27, 2026
Liquidity 25%→30% (“swappability is the most defining aspect of a stablecoin”), resilience 25%→20%.
5 coins reclassified from centralized-dependent to decentralized: crvUSD, FRXUSD, USR, GYD, ALUSD.
| Peg | Liquidity | Safety | Resilience | Decentralization | Dep Risk |
|---|---|---|---|---|---|
| multiplier | 30% | — | 20% | 15% | 25% |
Reconstructed from git commit history.
Commits: 122733d
v4.0Peg stability becomes a multiplierFeb 27, 2026
Biggest structural change. Peg Stability removed from the weighted base dimensions entirely and applied as a post-hoc power-curve multiplier:
| pegScore | Multiplier | Impact |
|---|---|---|
| 100 | 1.000 | none |
| 90 | ≈0.979 | −2% |
| 50 | ≈0.870 | −13% |
| 10 | ≈0.631 | −37% |
| 0 | 0 | dead |
Grade thresholds lowered 5 points to compensate for structural deflation. Minimum rated base dimensions reduced from 3 to 2.
| Peg | Liquidity | Safety | Resilience | Decentralization | Dep Risk |
|---|---|---|---|---|---|
| multiplier | 25% | — | 25% | 10% | 30% |
Reconstructed from git commit history.
Commits: 6ed2ec9