The 1.27.1 release will be made on Tuesday, July 10th. This includes the security fix for rustdoc and a patch for match ergonomic potential unsoundness.
Please test this release out by running
RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org rustup update stable; the artifacts are at https://dev-static.rust-lang.org/dist/2018-07-08/index.html.
Release notes can be found on GitHub.