azure: Azure unmanaged disks will be retired on 31 March 2026 (formerly 30 September 2025)

Microsoft is retiring Azure unmanaged disks; the announced retirement date is 31 March 2026 (previously 30 September 2025). Azure Managed Disks, launched in 2017 and enhanced since, now provide feature parity and additional capabilities. Deprecation of unmanaged disks began earlier (announced in 2022), and customers are advised to migrate workloads to managed disks before the retirement date.

• Source: Azure Updates