diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e24730..a28e177 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,7 +16,8 @@ major series.
 * Remove `std` feature flag
 * Remove `nightly` feature flag
 * Automatic serial backend selection between `u32` and `u64` over the default `u32`
-* Backend selection is now via cfg(curve25519_dalek_backend) over additive features.
+* Backend `simd` is now automatically selected over `serial` when a supported CPU is detected
+* Backend override is now via cfg(curve25519_dalek_backend) over additive features
 * Provide override to select `u32` or `u64` backend via cfg(curve25519_dalek_bits)
 * Replace methods `Scalar::{zero, one}` with constants `Scalar::{ZERO, ONE}`
 * Deprecate `EdwardsPoint::hash_from_bytes` and rename it `EdwardsPoint::nonspec_map_to_curve`
diff --git a/Cargo.toml b/Cargo.toml
index 72952b9..cc7a5ca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ name = "curve25519-dalek"
 # - update CHANGELOG
 # - update README if required by semver
 # - if README was updated, also update module documentation in src/lib.rs
-version = "4.0.0-rc.2"
+version = "4.0.0-rc.3"
 edition = "2021"
 rust-version = "1.60.0"
 authors = ["Isis Lovecruft <isis@patternsinthevoid.net>",
diff --git a/README.md b/README.md
index cd83e92..d26eaa3 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ curve25519-dalek = "3"
 To use the latest prerelease (see changes [below](#breaking-changes-in-400)),
 use the following line in your project's `Cargo.toml`:
 ```toml
-curve25519-dalek = "4.0.0-rc.2"
+curve25519-dalek = "4.0.0-rc.3"
 ```
 
 ## Feature Flags