| LS | Title | From | To | Approval date |
| SCV-LS88 | LS/r on the validated definition of the term “security update to firmware” (Reply to ITU-T SG5-LS30 and ITU-T SG17-LS87) | SCV | SG5; SG17; | 2026-02-02 |
| SG17-LS87 | LS/r on the term “security update to firmware” and its definition developed by ITU-T Study Group 5 (reply to SCV-LS57) | SG17 | SCV; | 2025-12-11 |
| SCV-LS57 | LS on the term "security update to firmware" and its definition developed by ITU-T Study Group 5 | SCV | SG17; SG5; | 2025-09-30 |
| SG5-LS30 | LS on terms contained in ITU-T Study Group 5 consented Recommendations and new draft Recommendations and Supplements | SG5 | SCV; | 2025-06-12 |
