Upgrade frequency (per 90 days)

Evidence summary #

v2 Vault and pool contracts are immutable — no proxy upgrades occur. v3 Vault, VaultExtension, VaultAdmin are immutable. No Upgraded events occur on core contracts. New pool/factory contracts are fresh deploys, not upgrades to existing proxies. Router v2 deployed March 2025 as a new contract. Effectively 0 upgrades in any 90-day window by architectural design.

Sources #

Methodology #

Count the number of contract upgrades in the trailing 90 days via on-chain upgrade events.

See the full factor methodology and distribution across all protocols →