diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c93ff8b..46430d50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.5.1](https://github.com/structured-world/xml-sec/compare/v0.5.0...v0.5.1) - 2026-11-04
+
+### Documentation
+
+- *(xml)* describe the parser that enforces limits and builds the tree ([#388](https://github.com/structured-world/xml-sec/pull/388))
+
+### Performance
+
+- *(xml)* build the semantic tree as xmloxide parses ([#386](https://github.com/structured-world/xml-sec/pull/386))
+- *(xml)* one lexical pass before the parser ([#381](https://github.com/structured-world/xml-sec/pull/381))
+- *(xslt)* project only changed bindings and uninterned values into SXD ([#380](https://github.com/structured-world/xml-sec/pull/380))
+
 ## [0.5.0](https://github.com/structured-world/xml-sec/compare/v0.4.1...v0.5.0) - 2026-11-03
 
 ### Added
diff --git a/Cargo.toml b/Cargo.toml
index 779106fb..9c82a090 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "xml-sec"
-version = "0.5.0"
+version = "0.5.1"
 edition = "2024"
 rust-version = "1.92"
 license = "Apache-2.0 AND MIT"