Upgrade frequency (per 90 days)

Spiko's assessment for RD-F-137 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Two EVM upgrades identified in protocol history (USTBL Ethereum 2024-04-19; EUTBL Arbitrum 2024-10-25). No upgrades in trailing 90 days. Stellar post-Halborn remediation also constitutes an upgrade cadence event. Upgrade frequency is not excessive but each upgrade lacks timelock.

Sources #

Audit
Halborn Stellar contracts auditHalborn Stellar audit 2025-09 at commit b66c29e implies Soroban contract update post-remediationretrieved 2026-05-16
Tx
USTBL Ethereum upgrade transactionUSTBL Ethereum upgrade tx 2024-04-19: 0x728d46f23e31b485d1a803dc6cc7b98196f2e59fab0d81d7e21a729435acb69bretrieved 2026-05-16

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 →

rubric_version v1.7.0 protocol spiko factor RD-F-137 score yellow collected_at 2026-05-15 22:52:13