Upgrade to v0.66—consolidation or rollover for HBAR?

Hedera scheduled a mainnet upgrade to version v0.66 on Wednesday, October 8, 2025, at 17:00 UTC. The status page notes an expected window of about 40 minutes and possible service disruption during the process. The notice follows late-September testnet work and recent 0.65.x production iterations. The scheduling details remain consistent across the official status portal. […]

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