diff --git a/CHANGELOG.md b/CHANGELOG.md
index 715b113..80fa7fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [2.2.0] - 2026-09-04
 
 ### Added
 - **Typed accessors for every enum-backed field.** `_enums.py` defines
diff --git a/pyproject.toml b/pyproject.toml
index 9da4098..06ccab7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "netprotocols"
-version = "2.0.0"
+version = "2.2.0"
 description = "Low-level implementations of common networking protocols"
 readme = "README.md"
 license = "MIT"
diff --git a/src/netprotocols/__init__.py b/src/netprotocols/__init__.py
index 9ef885a..a5bff5b 100644
--- a/src/netprotocols/__init__.py
+++ b/src/netprotocols/__init__.py
@@ -74,7 +74,7 @@
 # registrations name the classes. See netprotocols/_defaults.py.
 _defaults.install(DEFAULT)
 
-__version__ = "2.0.0"
+__version__ = "2.2.0"
 
 __all__ = [
     "ARP",
diff --git a/uv.lock b/uv.lock
index 94f3816..7274e1b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -434,7 +434,7 @@ wheels = [
 
 [[package]]
 name = "netprotocols"
-version = "2.0.0"
+version = "2.2.0"
 source = { editable = "." }
 
 [package.dev-dependencies]