Forty minutes. That’s all Hedera scheduled to ship its latest mainnet upgrade—and it hit the window on Sept. 24 at 17:00 UTC. The network marked the work complete with no lingering incidents, then turned to a testnet cutover the following day. Hedera set a ~40-minute maintenance window for the v0.65 mainnet upgrade on Wednesday, Sept. 24. The status page flagged possible service disruption while nodes restarted and applied changes.