As of filing this issue, the Go 1.16 draft release notes contained the following HTML:

net/http

[...]

TODO: https://golang.org/cl/250039: set Content-Length:0 for empty PATCH requests as with POST, PATCH

TODO: https://golang.org/cl/249440: match http scheme when selecting http_proxy

Per golang.org/s/release, it's a release blocker for Go 1.16 Beta 1 to have a complete draft of the eventual release notes, and so the TODO needs to be resolved.

A sequence of steps to resolve this issue may be:

1. Come up with a draft release note entry in this issue, then move the issue to NeedsFix state.
2. Send a CL with "doc/go1.16:" prefix and include "For doc: write Go 1.16 release notes #40700. Fixes #{this issue}." in the body.