Editing Request for Comments (section)

===Sub-series===
The RFC series contains three sub-series for [[IETF]] RFCs: BCP, FYI, and STD. Best Current Practice (BCP) is a sub-series of mandatory IETF RFCs not on standards track. For Your Information (FYI) is a sub-series of informational RFCs promoted by the IETF as specified in {{IETF RFC|1150|link=no}} (FYI&nbsp;1). In 2011, {{IETF RFC|6360|link=no}} obsoleted FYI&nbsp;1 and concluded this sub-series. Standard (STD) used to be the third and highest maturity level of the IETF standards track specified in {{IETF RFC|2026|link=no}} (BCP&nbsp;9). In 2011 {{IETF RFC|6410|link=no}} (a new part of BCP&nbsp;9) reduced the standards track to two maturity levels.{{citation needed|date=April 2021}}