| RFC | Status | Reference | Notes |
|---|---|---|---|
| 5218 | Informational | D. Thaler; B. Aboba (July 2008). What Makes for a Successful Protocol?. Network Working Group. doi:10.17487/RFC5218. RFC 5218. | |
| 5241 | Informational | A. Falk; S. Bradner (1 April 2008). Naming Rights in IETF Protocols. Network Working Group. doi:10.17487/RFC5241. RFC 5241. | This is an April Fools' Day Request for Comments. |
| 5242 | Informational | J. Klensin; H. Alvestrand (1 April 2008). A Generalized Unified Character Code: Western European and CJK Sections. Network Working Group. doi:10.17487/RFC5242. RFC 5242. | This is an April Fools' Day Request for Comments. |
| 5246 | Obsolete | T. Dierks; E. Rescorla (August 2008). The Transport Layer Security (TLS) Protocol Version 1.2. IETF TLS workgroup. doi:10.17487/RFC5246. RFC 5246. | Obsoleted by RFC 8446; obsoletes RFC 3268, 4346 and 4366; updates RFC 4492. |
