The 1.47.0 pre-release is ready for testing. The release is scheduled for this Thursday, October 8th. Release notes can be found here.

You can try it out locally by running:

RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org rustup update stable

The index is https://dev-static.rust-lang.org/dist/2020-10-06/index.html. You can leave feedback on the internals thread.

Additionally, the release team is still investigating a regression in procedural macros which include C++ code, #76980, and are interested in feedback and help from the community in figuring out a resolution to that bug.