diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5e3661..cbc308c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0](https://github.com/mag1cfrog/arrow-sql-server/compare/v0.3.2...v0.4.0) - 2026-08-05
+
+### Added
+
+- add opt-in ASCII varchar string policy ([#201](https://github.com/mag1cfrog/arrow-sql-server/pull/201))
+
 ## [0.3.2](https://github.com/mag1cfrog/arrow-sql-server/compare/v0.3.1...v0.3.2) - 2026-08-04
 
 ### Added
diff --git a/Cargo.toml b/Cargo.toml
index 9e747cf..a165e77 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ panic = "deny"
 
 [package]
 name = "arrow-sql-server"
-version = "0.3.2"
+version = "0.4.0"
 edition = "2024"
 rust-version = "1.88"
 license = "Apache-2.0"