**URGENT** [Solana] - Mainnet Validator upgrade to v4.0.2

Scheduled for Jun 11, 10:00 - 14:00 UTC

Scheduled

Blockdaemon will update Solana mainnet validator nodes to v4.0.2 on 06/11/26 at 10:00 UTC. This includes enabling the XDP feature (https://solana.com/upgrades/xdp). We are updating our nodes due to a release from the Solana foundation. This update applies to all Blockdaemon Solana mainnet validator nodes. There will be planned downtime of up to 30 minutes per node.

We have tested the release and do not anticipate any unexpected downtime other than what is 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/anza-xyz/agave/releases/tag/v4.0.2
Posted Jun 10, 2026 - 08:00 UTC
This scheduled maintenance affects: Blockdaemon Validator (Solana Validator).
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