| LS | Title | From | To | Approval date |
| ISO/IEC JTC1/SC27-N15343 WG4 N983 WG4 N987 WG4 N988 | LS on ISO/IEC 3rd CD 27050-1, on ISO/IEC 4th WD 27050-2, on ISO/IEC 4th WD 27050-3, and on ISO/IEC 4th WD 27050-4 [N15343, WG4 N983, WG4 N987, WG4 N988] | ISO/IEC JTC1/SC27 | SG17; | 2015-08-19 |