diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41060b1..ebe2f67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to the PivotPHP Framework will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.2.1] - 2026-10-09
+
+### Fixed
+
+- `Application::staticFiles()` passed `$this` to
+  `StaticFileManager::registerDirectory()`, whose signature changed when the static file
+  manager was decoupled into `pivotphp/core-routing` (it now expects
+  `($routePrefix, $physicalPath, $options)`). Removes the stale `$this` argument.
+- PSR-12 "multi-line function call" violations in 4 test files.
+
 ## [2.2.0] - 2026-10-08 - Route Syntax & DX Edition
 
 > Includes the PSR-7 2.0 compatibility fix documented below under `[2.1.1]`
diff --git a/VERSION b/VERSION
index e3a4f19..fae692e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.0
\ No newline at end of file
+2.2.1
\ No newline at end of file
diff --git a/docs/API_REFERENCE.md b/docs/API_REFERENCE.md
index ecd39b3..cc7095f 100644
--- a/docs/API_REFERENCE.md
+++ b/docs/API_REFERENCE.md
@@ -1,6 +1,6 @@
 # PivotPHP Core - API Reference
 
-**Version:** 2.2.0
+**Version:** 2.2.1
 
 > ⚠️ **Nota de revisão:** este documento foi originalmente escrito para a v1.1.3/v1.2.0. A
 > assinatura do construtor de `Application` e alguns exemplos foram corrigidos para refletir
diff --git a/docs/README.md b/docs/README.md
index b07aace..6633d51 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,6 +1,6 @@
-# PivotPHP Core v2.2.0 Documentation
+# PivotPHP Core v2.2.1 Documentation
 
-Welcome to the complete documentation for **PivotPHP Core v2.2.0** - a high-performance, lightweight PHP microframework inspired by Express.js, designed for building APIs and web applications with exceptional speed and simplicity.
+Welcome to the complete documentation for **PivotPHP Core v2.2.1** - a high-performance, lightweight PHP microframework inspired by Express.js, designed for building APIs and web applications with exceptional speed and simplicity.
 
 ## 🚀 Quick Navigation
 
@@ -42,6 +42,11 @@ Welcome to the complete documentation for **PivotPHP Core v2.2.0** - a high-perf
 
 ## ✨ What's Current (v2.2.x)
 
+### 🩹 **v2.2.1 — Patch**
+- Fixed `Application::staticFiles()` (removed stale `$this` argument to
+  `StaticFileManager::registerDirectory()` after its decoupling into core-routing).
+- PSR-12 corrections in test files.
+
 ### 🎯 **v2.2.0 — Route Syntax & DX Edition**
 - Brace-delimited route parameters (`{id}` / `{id<constraint>}`) — equivalent to `:id`.
 - Array callables `[Classe::class, 'métodoDeInstância']` resolved via the DI container.
@@ -99,7 +104,7 @@ complete v1.1.4 release documentation suite.
 
 ## 🔧 Framework Status
 
-- **Current Version**: v2.2.0 (Route Syntax & DX Edition)
+- **Current Version**: v2.2.1 (Patch)
 - **PHP Requirements**: 8.1+ with strict typing
 - **Production Ready**: Enterprise-grade quality with type safety
 - **Community**: [GitHub](https://github.com/PivotPHP)
diff --git a/docs/index.md b/docs/index.md
index 7c884dd..9830cf5 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -57,7 +57,8 @@ Todas as entradas abaixo linkam para o registro oficial da versão — um docume
 `FRAMEWORK_OVERVIEW` dedicado quando existe um, ou a entrada correspondente no
 [CHANGELOG](../CHANGELOG.md) quando não existe:
 
-- [**v2.2.0 (Atual)**](releases/FRAMEWORK_OVERVIEW_v2.2.0.md) - Route Syntax & DX Edition
+- [**v2.2.1 (Atual)**](releases/FRAMEWORK_OVERVIEW_v2.2.1.md) - Patch
+- [**v2.2.0**](releases/FRAMEWORK_OVERVIEW_v2.2.0.md) - Route Syntax & DX Edition
 - [**v2.1.1**](../CHANGELOG.md) - PSR-7 2.0 Compatibility Fix (nunca taggeada; incluída na v2.2.0)
 - [**v2.1.0**](../CHANGELOG.md) - Response Emission, Pool Safety & Deprecation Cycle
 - [**v2.0.0**](releases/FRAMEWORK_OVERVIEW_v2.0.0.md) - Modular Routing & Legacy Cleanup Edition
@@ -109,4 +110,4 @@ Todas as entradas abaixo linkam para o registro oficial da versão — um docume
 
 ---
 
-*📖 Documentação atualizada em: 08 de outubro de 2026 - v2.2.0*
+*📖 Documentação atualizada em: 09 de outubro de 2026 - v2.2.1*
diff --git a/docs/quick-start.md b/docs/quick-start.md
index 7eb82be..9eb3693 100644
--- a/docs/quick-start.md
+++ b/docs/quick-start.md
@@ -1,6 +1,6 @@
 # Quick Start Guide
 
-Get up and running with PivotPHP Core v2.2.0 in under 5 minutes! This guide will walk you through installation, basic setup, and creating your first API endpoints.
+Get up and running with PivotPHP Core v2.2.1 in under 5 minutes! This guide will walk you through installation, basic setup, and creating your first API endpoints.
 
 ## 🚀 Installation
 
@@ -274,4 +274,4 @@ $app->use(new CorsMiddleware(['allowed_origins' => ['*']]));
 
 ---
 
-**Parabéns!** Agora você tem uma base sólida para criar provas de conceito e protótipos com PivotPHP Core v2.2.0. 🎉
+**Parabéns!** Agora você tem uma base sólida para criar provas de conceito e protótipos com PivotPHP Core v2.2.1. 🎉
diff --git a/docs/releases/FRAMEWORK_OVERVIEW_v2.2.1.md b/docs/releases/FRAMEWORK_OVERVIEW_v2.2.1.md
new file mode 100644
index 0000000..48c4661
--- /dev/null
+++ b/docs/releases/FRAMEWORK_OVERVIEW_v2.2.1.md
@@ -0,0 +1,48 @@
+# PivotPHP v2.2.1 - Framework Overview
+
+**Version:** 2.2.1 (Patch)
+**Release Date:** 2026-10-09
+**PHP Requirements:** 8.1+
+
+---
+
+## 🎯 Executive Summary
+
+PivotPHP v2.2.1 is a **patch release** that fixes a static-file-serving regression introduced
+when `StaticFileManager` was decoupled into `pivotphp/core-routing`, plus PSR-12 style
+violations in test files. No public-API change.
+
+### Release Highlights
+
+- ✅ **`Application::staticFiles()` fixed** — removed the stale `$this` argument passed to
+  `StaticFileManager::registerDirectory()`, whose signature changed after the decoupling.
+- ✅ **PSR-12** — multi-line function-call violations in 4 test files corrected.
+- ✅ **PHPStan Level 9** — back to zero errors (117 files).
+
+---
+
+## 📊 Technical Metrics
+
+| Metric | v2.2.1 |
+|--------|--------|
+| **PSR-7** | `psr/http-message` `^1.1\|^2.0` (dual support) |
+| **PSR-15** | Compliant |
+| **PHPStan** | Level 9 (0 errors) |
+| **Coding style** | PSR-12 |
+| **Tests** | 1093 CI + 34 integration |
+
+### Performance
+
+No performance change — this patch only corrects a broken static-file call and test-file
+formatting.
+
+---
+
+## 🔧 Compatibility
+
+Fully backward compatible with v2.2.0. No breaking changes.
+
+## 📚 Related Documentation
+
+- `CHANGELOG.md` — detailed change log.
+- `docs/releases/FRAMEWORK_OVERVIEW_v2.2.0.md` — the 2.2.0 (Route Syntax & DX Edition) overview.
diff --git a/src/Core/Application.php b/src/Core/Application.php
index 86e3ef3..c6bba58 100644
--- a/src/Core/Application.php
+++ b/src/Core/Application.php
@@ -44,7 +44,7 @@ class Application implements ApplicationInterface
     /**
      * Versão do framework.
      */
-    public const VERSION = '2.2.0';
+    public const VERSION = '2.2.1';
 
     /**
      * Container de dependências PSR-11.
diff --git a/tests/Core/ApplicationTest.php b/tests/Core/ApplicationTest.php
index 9099099..00d2bab 100644
--- a/tests/Core/ApplicationTest.php
+++ b/tests/Core/ApplicationTest.php
@@ -67,8 +67,8 @@ private function removeDirectory(string $dir): void
     public function testApplicationInitialization(): void
     {
         $this->assertInstanceOf(Application::class, $this->app);
-        $this->assertEquals('2.2.0', Application::VERSION);
-        $this->assertEquals('2.2.0', $this->app->version());
+        $this->assertEquals('2.2.1', Application::VERSION);
+        $this->assertEquals('2.2.1', $this->app->version());
         $this->assertFalse($this->app->isBooted());
     }