Proxy upgraded: Base (OP Stack L1 contracts) OptimismPortal (Base)

Detected2026-09-28 20:38 UTC · block 26078391
ChainEthereum
ContractOptimismPortal (Base) 0x49048044d57e1c92a77f79988d21fa8faf74e97e
EventUpgraded(address)
After0xca5c…d06c
Details{"backfill":true}
Transaction0x356e…659b

What changed

Old implementation—
New implementation0xca5c…d06c OptimismPortal2 0.8.15+commit.e14f2714 (verified, match)

Sources: old · new (Sourcify)