diff --git a/RELEASES.md b/RELEASES.md
index b3d8c2f65f633..37aed7735455b 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -68,7 +68,19 @@ Compatibility Notes
 - [Rustc now correctly relates the lifetime of an existential associated
   type.][71896] This fixes some edge cases where `rustc` would erroneously allow
   you to pass a shorter lifetime than expected.
-
+- [Rustc now dynamically links to `libz` (also called `zlib`) on Linux.][74420]
+  The library will need to be installed for `rustc` to work, even though we
+  expect it to be already available on most systems.
+- [Tests annotated with `#[should_panic]` are broken on ARMv7 while running
+  under QEMU.][74820]
+- [Pretty printing of some tokens in procedural macros changed.][75453] The
+  exact output returned by rustc's pretty printing is an unstable
+  implementation detail: we recommend any macro relying on it to switch to a
+  more robust parsing system.
+
+[75453]: https://github.com/rust-lang/rust/issues/75453/
+[74820]: https://github.com/rust-lang/rust/issues/74820/
+[74420]: https://github.com/rust-lang/rust/issues/74420/
 [74109]: https://github.com/rust-lang/rust/pull/74109/
 [74150]: https://github.com/rust-lang/rust/pull/74150/
 [73862]: https://github.com/rust-lang/rust/pull/73862/
diff --git a/src/ci/run.sh b/src/ci/run.sh
index ff737ea869f2b..f888624596cfc 100755
--- a/src/ci/run.sh
+++ b/src/ci/run.sh
@@ -51,7 +51,7 @@ fi
 #
 # FIXME: need a scheme for changing this `nightly` value to `beta` and `stable`
 #        either automatically or manually.
-export RUST_RELEASE_CHANNEL=beta
+export RUST_RELEASE_CHANNEL=stable
 
 # Always set the release channel for bootstrap; this is normally not important (i.e., only dist
 # builds would seem to matter) but in practice bootstrap wants to know whether we're targeting
diff --git a/src/stage0.txt b/src/stage0.txt
index 2c87531eb96b3..1594dc93b0c45 100644
--- a/src/stage0.txt
+++ b/src/stage0.txt
@@ -12,9 +12,9 @@
 # source tarball for a stable release you'll likely see `1.x.0` for rustc and
 # `0.(x+1).0` for Cargo where they were released on `date`.
 
-date: 2020-07-13
-rustc: 1.45.0
-cargo: 0.46.0
+date: 2020-08-03
+rustc: 1.45.2
+cargo: 0.46.1
 
 # We use a nightly rustfmt to format the source because it solves some
 # bootstrapping issues with use of new syntax in this repo. If you're looking at
@@ -40,4 +40,4 @@ cargo: 0.46.0
 # looking at a beta source tarball and it's uncommented we'll shortly comment it
 # out.
 
-dev: 1
+#dev: 1