Hi Mariola,
The Edge device relocation feature must be implemented by the Device Builder which is in this case Siemens IPC device builder. The IPC operating system IED-OS 1.12 contains IEDK version 1.12 which enables you to migrate between IEM 1.0 (aka IEM-OS) and IEM 2.0 and it is supported by the device builder. You can find it in the Device builder release notes.
See platform docs here about the relocating edge devices https://docs.eu1.edge.siemens.cloud/get_started_and_operate/industrial_edge_management/k8s/operation/relocating_an_ied/relocating_an_edge_device.html