diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd40228..6f02a3f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [0.2.2] - 2026-01-12
+
+### Fixed
+
+- **DebugTree accessibility**: Added explicit `public init()` to DebugTree to resolve compilation error when using DebugTree in external modules ("DebugTree initializer is inaccessible due to 'internal' protection level")
+
+### BREAKING CHANGES
+
+- **None** - This release is fully backward compatible with 0.2.1
+
+---
+
 ## [0.2.1] - 2026-01-12
 
 ### Changed
@@ -117,7 +129,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 | Version | Date | Status |
 |---------|------|--------|
-| [0.2.1] | 2026-01-12 | **Current Release** - Update source URL to HTTPS |
+| [0.2.2] | 2026-01-12 | **Current Release** - Fix DebugTree accessibility |
+| [0.2.1] | 2026-01-12 | Update source URL to HTTPS |
 | [0.2.0] | 2026-01-09 | Stability & Security Improvements |
 | [0.1.0] | 2026-01-08 | Initial release |
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 59c4763..064fdec 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -185,8 +185,8 @@ All tests must pass before merging.
 
 1. Update version in `Package.swift`
 2. Update CHANGELOG.md with new version
-3. Create git tag (`git tag v0.2.1`)
-4. Push tag (`git push origin v0.2.1`)
+3. Create git tag (`git tag v0.2.2`)
+4. Push tag (`git push origin v0.2.2`)
 
 ### Release Checklist
 
@@ -201,7 +201,7 @@ All tests must pass before merging.
 ### Release Notes Format
 
 ```markdown
-## v0.2.1
+## v0.2.2
 
 ### New Features
 - Feature description
diff --git a/Canopy.podspec b/Canopy.podspec
index 601f868..0eb6e84 100644
--- a/Canopy.podspec
+++ b/Canopy.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'Canopy'
-  s.version          = '0.2.1'
+  s.version          = '0.2.2'
   s.summary          = 'A lightweight, high-performance logging framework for iOS'
   s.description      = <<-DESC
 Canopy is a logging framework inspired by Android's Timber, using a Tree-based architecture.
diff --git a/Canopy/Sources/Tree.swift b/Canopy/Sources/Tree.swift
index 276887c..92abe64 100644
--- a/Canopy/Sources/Tree.swift
+++ b/Canopy/Sources/Tree.swift
@@ -19,6 +19,8 @@ open class Tree: @unchecked Sendable {
     /// Marked as nonisolated(unsafe) because subclasses use locks for thread safety.
     nonisolated(unsafe) open var minLevel: LogLevel = .verbose
 
+    public init() {}
+
     @discardableResult
     nonisolated open func tag(_ tag: String?) -> Self {
         self.explicitTag = (tag?.isEmpty ?? true) ? nil : tag
diff --git a/README.md b/README.md
index 9481ef6..7744302 100644
--- a/README.md
+++ b/README.md
@@ -20,11 +20,11 @@ Add Canopy to your project using Swift Package Manager or CocoaPods:
 ```bash
 # Swift Package Manager
 dependencies: [
-    .package(url: "https://github.com/ding1dingx/Canopy.git", from: "0.2.1")
+    .package(url: "https://github.com/ding1dingx/Canopy.git", from: "0.2.2")
 ]
 
 # CocoaPods
-pod 'Canopy', '~> 0.2.1'
+pod 'Canopy', '~> 0.2.2'
 ```
 
 Initialize in your `AppDelegate`:
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 526134f..dc47aac 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -20,11 +20,11 @@
 ```bash
 # Swift Package Manager
 dependencies: [
-    .package(url: "https://github.com/ding1dingx/Canopy.git", from: "0.2.1")
+    .package(url: "https://github.com/ding1dingx/Canopy.git", from: "0.2.2")
 ]
 
 # CocoaPods
-pod 'Canopy', '~> 0.2.1'
+pod 'Canopy', '~> 0.2.2'
 ```
 
 在 `AppDelegate` 中初始化：