diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45518d1..2069069 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -152,6 +152,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Other
 
+- release v0.4.0 ([#49](https://github.com/DecapodLabs/dactyl/pull/49))
+- Update Decapod version in README
+
+## [0.4.0](https://github.com/DecapodLabs/dactyl/compare/dactyl-db-v0.3.0...dactyl-db-v0.4.0) - 2026-08-06
+
+### Added
+
+- make dactyl a thin application read write driver ([#48](https://github.com/DecapodLabs/dactyl/pull/48))
+
+### Other
+
 - Update Decapod version in README
 
 - *(dactyl-db)* reduce the public contract to congruent application `read` /