docs: adds entries for #32 to CHANGELOG and bumps version to 0.4.0

CHANGELOG.md

@@ -2,15 +2,17 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 0.3.9 - TBD
+## 0.4.0 - TBD
 
 ### Added
 
 - Nothing.
 
 ### Changed
 
-- Nothing.
+- [#32](https://github.com/laminas/laminas-zendframework-bridge/pull/32) changes all references to Expressive to instead reference Mezzio.
+
+- [#32](https://github.com/laminas/laminas-zendframework-bridge/pull/32) changes all references to Apigility to instead reference Laminas API Tools. The vendor becomes laminas-api-tools, the URL becomes api-tools.laminas.dev, packages and repos are prefixed with api-tools, and namespaces become `Laminas\ApiTools`.
 
 ### Deprecated