These are links to the most recent editors' copies of the draft specifications I'm currently working on in the IETF. Those that are adopted by Working Groups usually (but not always) go into that group's repository, rather than here (e.g., see the HTTP Working Group).
Source and issues are kept in Github.
binary-structured-headers - Binary Structured HTTP Field Values
cache-trailers - Updating HTTP Caching Policy in Trailers
discussion-recharter - Rechartering the IETF Discussion List
json-home - Home Documents for HTTP APIs
link-hint - HTTP Link Hints
link-template - The Link-Template HTTP Header Field
where-does-that-come-from - Clarifying IETF Document Status
wugh-services - Using Third Party Services for IETF Work