diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cca8799..714f379 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,10 +2,10 @@ name: Test
 
 on:
   push:
-    branches:
-      - main
+    branches: [ 'main' ]
   pull_request:
-    types: [opened, synchronize, reopened]
+    types: [ 'opened', 'synchronize', 'reopened' ]
+
 
 jobs:
   test:
diff --git a/README.md b/README.md
index 7045e13..eae9bf6 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,82 @@
 # Complex Heart PHP SDK
 
 [![Test](https://github.com/ComplexHeart/php-sdk/actions/workflows/test.yml/badge.svg)](https://github.com/ComplexHeart/php-sdk/actions/workflows/test.yml)
+[![License](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](LICENSE)
+[![PHP Version](https://img.shields.io/badge/php-%5E8.2-blue)](https://www.php.net/)
 
-Provide a set of useful classes and tools to ease the adoption of Domain Driven
-Design into your project.
+An SDK for building Domain-Driven Design (DDD) applications in PHP. This metapackage bundles the essential Complex Heart libraries to provide a complete toolset for implementing DDD patterns with value objects, entities, aggregates, and flexible query criteria.
 
-- [Contracts](https://github.com/ComplexHeart/php-contracts): Commons interfaces
-  to decouple some parts of the Domain.
-- [Data Model](https://github.com/ComplexHeart/php-domain-model): Aggregates,
-  Entities and Value Objects.
-- [Criteria](https://github.com/ComplexHeart/php-criteria): Small implementation
-  of a criteria pattern in PHP for Complex Heart SDK.
+## Overview
+
+The Complex Heart SDK is designed to ease the adoption of Domain-Driven Design principles in PHP projects by providing well-tested, production-ready components that handle common DDD patterns and challenges.
+
+## Features
+
+This SDK includes three core packages:
+
+- **[Contracts](https://github.com/ComplexHeart/php-contracts)** - Common interfaces and contracts to decouple domain logic from infrastructure concerns
+- **[Domain Model](https://github.com/ComplexHeart/php-domain-model)** - Base classes and utilities for building Aggregates, Entities, and Value Objects
+- **[Criteria](https://github.com/ComplexHeart/php-criteria)** - Flexible query pattern implementation for building type-safe, repository-agnostic queries
+
+## Requirements
+
+- PHP ^8.2
+- ext-json
+
+## Installation
+
+Install via Composer:
+
+```bash
+composer require complex-heart/sdk
+```
+
+This will install all three packages and their dependencies.
+
+## What's Included
+
+### Contracts Package
+Provides foundational interfaces for:
+- Value Objects
+- Entities and Aggregates
+- Domain Events
+- Repositories
+- Services
+
+### Domain Model Package
+Offers base implementations for:
+- Value Objects with validation and immutability
+- Entities with identity management
+- Aggregate roots with domain event handling
+- Rich domain behaviors
+
+### Criteria Package
+Enables flexible querying with:
+- Type-safe query building
+- Filtering, ordering, and pagination
+- Repository-agnostic design
+- Composable query specifications
+
+## Documentation
+
+For detailed documentation on each package, please visit:
+
+- [Contracts Documentation](https://github.com/ComplexHeart/php-contracts#readme)
+- [Domain Model Documentation](https://github.com/ComplexHeart/php-domain-model#readme)
+- [Criteria Documentation](https://github.com/ComplexHeart/php-criteria#readme)
+
+## License
+
+This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.
+
+## Contributing
+
+Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.
+
+## Support
+
+If you encounter any issues or have questions:
+
+- Open an issue on [GitHub Issues](https://github.com/ComplexHeart/php-sdk/issues)
+- Check existing issues and discussions
+- Review the documentation for each individual package
diff --git a/composer.json b/composer.json
index 439f30b..408d9f8 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
   "name": "complex-heart/sdk",
-  "description": "Domain model toolset to properly build Value Objects, Entities, Aggregates and Services.",
+  "description": "SDK for Domain-Driven Design that provides framework-agnostic abstractions, allowing you to focus on business logic.",
   "type": "library",
   "license": "Apache-2.0",
   "authors": [
@@ -13,8 +13,8 @@
   "require": {
     "php": "^8.2",
     "ext-json": "*",
-    "complex-heart/contracts": "^2.0.0",
-    "complex-heart/domain-model": "^4.0.0",
+    "complex-heart/contracts": "^3.0.0",
+    "complex-heart/domain-model": "^5.0.0",
     "complex-heart/criteria": "^4.0.0"
   }
 }
diff --git a/phpunit.xml b/phpunit.xml
deleted file mode 100644
index 8c1a9e1..0000000
--- a/phpunit.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         bootstrap="vendor/autoload.php"
-         colors="true"
-         verbose="true"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
-    <coverage processUncoveredFiles="true">
-        <include>
-            <directory suffix=".php">./src</directory>
-        </include>
-        <report>
-            <clover outputFile="./coverage.xml"/>
-        </report>
-    </coverage>
-    <testsuites>
-        <testsuite name="unit">
-            <directory suffix="Test.php">./tests</directory>
-        </testsuite>
-    </testsuites>
-    <logging/>
-</phpunit>