**Urgent** [Stellar] - Internal Maintenance

Scheduled for Jun 17, 14:00 - 17:00 UTC

Scheduled

Blockdaemon will update all Stellar Testnet & Mainnet nodes to Stellar Core v27.0.0, Stellar Horizon v27.0.0 and Stellar Soroban v27.0.0 on 06/17/26. We are updating our nodes due to an release from the Stellar foundation. This update applies to all Blockdaemon Stellar Testnet & Mainnet nodes, there will be planned downtime of up to 15 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 Service Manager.

If you want additional information please review the release notes here:
https://github.com/stellar/stellar-rpc/releases/tag/v27.0.0 https://github.com/stellar/stellar-horizon/releases/tag/v27.0.0
https://github.com/stellar/stellar-core/releases/tag/v27.0.0
Posted Jun 15, 2026 - 07:50 UTC
This scheduled maintenance affects: Blockdaemon RPC API (Stellar Native API) and Protocols (Dedicated Nodes) (Stellar).
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