diff --git a/CHANGELOG.md b/CHANGELOG.md
index de6cae2..de079ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## Version 0.5.0
+
+- Return a concrete `Ssimulacra2Error` error type instead of a freeform `anyhow::Result`
+- Precalculate float consts for RecursiveGaussian at build time (performance)
+- Update `yuvxyb` dependency to 0.4
+
 ## Version 0.4.0
 
 - Update to [version 2.1 of the metric](https://github.com/cloudinary/ssimulacra2/compare/v2.0...v2.1)
diff --git a/Cargo.lock.MSRV b/Cargo.lock.MSRV
index 3f2d265..0e994a4 100644
--- a/Cargo.lock.MSRV
+++ b/Cargo.lock.MSRV
@@ -837,7 +837,7 @@ dependencies = [
 
 [[package]]
 name = "ssimulacra2"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "criterion",
  "image",
diff --git a/Cargo.toml b/Cargo.toml
index a261285..90ea78f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ssimulacra2"
-version = "0.4.0"
+version = "0.5.0"
 edition = "2021"
 description = "Rust implementation of the SSIMULACRA2 metric"
 repository = "https://github.com/rust-av/ssimulacra2"