| RFC | Status | Reference | Notes |
|---|---|---|---|
| 5322 | Draft Standard | P. Resnick, ed. (October 2008). Internet Message Format. Network Working Group. doi:10.17487/RFC5322. RFC 5322. | Obsoletes RFC 2822. Updates RFC 4021. Updated by RFC 6854. |
| 5340 | Proposed Standard | R. Coltun; D. Ferguson; J. Moy (July 2008). A. Lindem (ed.). OSPF for IPv6. Network Working Group. doi:10.17487/RFC5340. RFC 5340. | Obsoletes RFC 2740. Updated by RFC 6845, 6860, 8362, 7503 and 9454 |
