This document has been updated as follows:
| Rev. | Date | Comment |
|---|---|---|
| 1 | 2024-07-05 | Initial version. |
| 2 | 2024-08-20 | A number of minor changes have been made. |
| 3 | 2024-11-04 | Changes have been made in Sections 2.3, 3.1, 3.2, 4.1 and 4.2. A number of minor changes have been made. |
| 4 | 2025-04-10 | Section 3.3 has been added. Changes have been made in Chapter 5. Changes have been made in Sections 2.3, 4.1 and 4.4. A number of minor changes have been made. |
| 5 | 2025-10-08 | The term IPU has been changed to DPU. Chapter 3 has been removed. A number of minor changes have been made. |