diff --git a/lib/bake/gem/github/version.rb b/lib/bake/gem/github/version.rb
index 110d72d..76fad7a 100644
--- a/lib/bake/gem/github/version.rb
+++ b/lib/bake/gem/github/version.rb
@@ -9,7 +9,7 @@ module Bake
 	module Gem
 		# GitHub pull request and release orchestration for bake-gem.
 		module GitHub
-			VERSION = "0.3.1"
+			VERSION = "0.4.0"
 		end
 	end
 end
diff --git a/readme.md b/readme.md
index 1a33239..8bdda19 100644
--- a/readme.md
+++ b/readme.md
@@ -24,6 +24,10 @@ Please see the [project documentation](https://socketry.github.io/bake-gem-githu
 
 Please see the [project releases](https://socketry.github.io/bake-gem-github/releases/index) for all releases.
 
+### v0.4.0
+
+  - Reject Secret environment reviewer teams before applying release settings, and verify that GitHub retained the requested reviewers and existing protections after updating the environment.
+
 ### v0.3.1
 
   - Publish validated release PRs from pushes to the default branch, retaining the exact merged commit and environment approval without requiring `pull_request_target`.
diff --git a/releases.md b/releases.md
index ddb54ff..0cc96e0 100644
--- a/releases.md
+++ b/releases.md
@@ -1,6 +1,6 @@
 # Releases
 
-## Unreleased
+## v0.4.0
 
   - Reject Secret environment reviewer teams before applying release settings, and verify that GitHub retained the requested reviewers and existing protections after updating the environment.