Optimism - Flashblocks Mainnet & Sepolia Maintenance – Maintenance details

All systems operational

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AUG13

Flashblocks Mainnet & Sepolia Maintenance

CompletedAugust 13, 2026 at 8:10 PM – 11:28 AMUTC

Affects

Mainnet

Under maintenance from 8:10 PM to 11:28 AM

Public API

Under maintenance from 8:10 PM to 11:28 AM

Sepolia

Under maintenance from 8:10 PM to 11:28 AM

Public API

Under maintenance from 8:10 PM to 11:28 AM

  • In progressAugust 13, 2026 at 8:10 PMUTC

    We are executing maintenance on the flashblocks endpoints for OP Sepolia & OP Mainnet. When executing the cutover, clients may experience connection issues while DNS propagates. We anticipate this cutover being brief and any connection issues should be resolved within 5 minutes of the cutover.

  • CompletedAugust 13, 2026 at 11:28 AMUTC
    Maintenance has completed successfully.