diff --git a/lib/async/version.rb b/lib/async/version.rb
index d04daf6..dbc6d92 100644
--- a/lib/async/version.rb
+++ b/lib/async/version.rb
@@ -4,5 +4,5 @@
 # Copyright, 2017-2024, by Samuel Williams.
 
 module Async
-	VERSION = "2.17.0"
+	VERSION = "2.18.0"
 end
diff --git a/readme.md b/readme.md
index 0666fd8..e8be4a0 100644
--- a/readme.md
+++ b/readme.md
@@ -35,6 +35,10 @@ Please see the [project documentation](https://socketry.github.io/async/) for mo
 
 Please see the [project releases](https://socketry.github.io/async/releases/index) for all releases.
 
+### v2.18.0
+
+  - Add support for `Sync(annotation:)`, so that you can annotate the block with a description of what it does, even if it doesn't create a new task.
+
 ### v2.17.0
 
   - Introduce `Async::Queue#push` and `Async::Queue#pop` for compatibility with `::Queue`.
diff --git a/releases.md b/releases.md
index a0a2063..58ef318 100644
--- a/releases.md
+++ b/releases.md
@@ -1,6 +1,6 @@
 # Releases
 
-## Unreleased
+## v2.18.0
 
   - Add support for `Sync(annotation:)`, so that you can annotate the block with a description of what it does, even if it doesn't create a new task.