diff --git a/Cargo.toml b/Cargo.toml
index a11611279..4a0abf3ab 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "taffy"
-version = "0.4.4"
+version = "0.5.0"
 authors = [
     "Alice Cecile <alice.i.cecile@gmail.com>",
     "Johnathan Kelley <jkelleyrtp@gmail.com>",
diff --git a/RELEASES.md b/RELEASES.md
index 66d121561..c9e9f2b3e 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,5 +1,13 @@
 # Release Notes
 
+## 0.5.0
+
+The changes in 0.5 are relatively small but the new measure function parameter is a breaking change so it requires a minor version bump.
+
+- Added: A `style: &Style` parameter has been added to measure functions.
+- Added: The `MaybeMath`, `MaybeResolve`, and `ResolveOrZero` traits have been made public.
+- Fix: use SizingMode::Inherent when sizing absolute children of flexbox nodes.
+
 ## 0.4.4
 
 ### Fixes