diff --git a/CHANGELOG.md b/CHANGELOG.md
index 33edd76..df24509 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 0.4.0
+
+- Monotonic clock for locks, avoiding issues with DST (thanks @doits)
+- Pooled connection support (thanks @mlarraz)
+- Switch to Github actions for tests (thanks @mlarraz)
+- Update supported Ruby versions (thanks @mlarraz & @pat)
+
 ## 0.3.4
 
 - Support for connection pooling when using memcached locks, via `with` blocks using Dalli (thanks to Lev).
diff --git a/lib/suo/version.rb b/lib/suo/version.rb
index 014d894..483521a 100644
--- a/lib/suo/version.rb
+++ b/lib/suo/version.rb
@@ -1,3 +1,3 @@
 module Suo
-  VERSION = "0.3.4".freeze
+  VERSION = "0.4.0".freeze
 end