diff --git a/CHANGELOG.md b/CHANGELOG.md
index bbb6ce4..c4acbfd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,19 @@ 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).
 
+## [2.1.0] - 2024-09-10
+
+### Added
+
+- `CommandExecutorHelper` now has a `parseAndInvoke` method to aid unit testing
+  commands.
+
+### Changed
+
+- When an argument is missing, command parsers will always get a
+  `PromptRequiredError` if a prompt is available on the associated parameter
+  description.
+
 ## [2.0.0] - 2024-09-09
 
 ### Changed
diff --git a/package.json b/package.json
index 00cef2f..cf7ef5f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@the-draupnir-project/interface-manager",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "files": [