*Urgent* [Robinhood Chain] - Upgrade mainnet and testnet to v3.11.4

Scheduled for Sep 23, 09:00 - 10:00 UTC

Scheduled

Blockdaemon will update Robinhood Chain mainnet and testnet nodes to v3.11.4 on 09/23/2026. We are updating our nodes due to a release from the Arbitrum foundation. This update applies to all Blockdaemon Robinhood Chain mainnet and testnet nodes, there will be planned downtime of up to 10 minutes per node.

We have tested the release and do not anticipate any unexpected downtime other than mentioned above as a result of the update. If you have any questions or concerns please reach out to your Customer Success Manager.

If you want additional information please review the release notes here https://github.com/OffchainLabs/nitro/releases/tag/v3.11.4
Posted Sep 22, 2026 - 09:44 UTC
This scheduled maintenance affects: Blockdaemon RPC API (Robinhood Chain).
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