diff --git a/CHANGELOG.md b/CHANGELOG.md
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+++ b/CHANGELOG.md
@@ -0,0 +1,152 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [1.0.0] - 2026-04-03
+
+### Added
+
+#### Documentation - April 2026
+- **[2026-04-03]** Comprehensive AAP 2.6 components reference guide ([#36](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/36))
+  - Complete deployment reference for Gateway, Controller, Hub, and EDA
+  - Database architecture documentation (4 databases on 1 PostgreSQL instance)
+  - Advanced HA configuration example with replicas and resource limits
+  - Verification procedures and troubleshooting guide
+  - Scaling guidance and resource sizing recommendations
+- **[2026-04-03]** AAP 2.6 deployment validation reports ([#35](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/35))
+  - Comprehensive 18-section validation report against Red Hat documentation
+  - Executive summary with deployment readiness checklist
+  - 100% compliance validation (14/14 requirements passed)
+  - Real deployment validation with CloudNativePG PostgreSQL cluster
+- **[2026-04-03]** AAP OpenShift external DB deployment report ([#34](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/34))
+  - Documented successful 10-pod deployment (Gateway, Controller, Redis)
+  - Environment-specific deployment insights
+  - Skills symlink for easier access
+- **[2026-04-03]** Reorganized scripts documentation with comprehensive guides ([#33](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/33))
+  - Scripts operations guide with deployment and DR workflows
+  - Detailed scripts library reference for all shared functions
+  - Scripts hooks and CI/CD integration guide
+- **[2026-04-02]** HAProxy/PgBouncer architectural analysis ([#32](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/32))
+  - Comprehensive routing architecture analysis for EDB PostgreSQL
+  - Comparison of HAProxy vs PgBouncer for AAP workloads
+  - Connection pooling and health check configurations
+  - Performance and scalability considerations
+- PostgreSQL replication test reports
+  - Cross-cluster replication validation
+  - RTO/RPO measurement results
+  - Streaming replication verification
+- Reports directory structure with README
+  - Organized validation and deployment reports
+  - Clear categorization and indexing
+
+#### Documentation - March 2026
+- **[2026-03-31]** Improved main README with badges, prerequisites, and community links ([#31](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/31))
+  - Added status badges (License, Status, Last Updated)
+  - Enhanced prerequisites section with detailed requirements
+  - Improved quick start navigation and structure
+- **[2026-03-31]** AAP 2.6 containerized DR architectures and validation ([#29](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/29))
+  - Enterprise DR architecture documentation
+  - Containerized growth architecture patterns
+  - Architecture validation reports
+- **[2026-03-31]** Comprehensive Quick Start Guide ([#25](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/25))
+  - OpenShift deployment path (15 minutes)
+  - RHEL with TPA deployment path (20 minutes)
+  - Local CRC testing path (30 minutes)
+  - Prerequisites and troubleshooting sections
+- **[2026-03-31]** Refactored architecture into dedicated file ([#26](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/26))
+  - Moved architecture details to docs/architecture.md
+  - Improved documentation organization and navigation
+  - Enhanced diagrams and technical depth
+- **[2026-03-31]** Documentation infrastructure improvements
+  - Comprehensive documentation index (docs/INDEX.md)
+  - Fixed cross-references across all documentation
+  - Standardized terminology for EDB Postgres on OpenShift
+  - Added table of contents and navigation aids
+- **[2026-03-27]** Standardized namespace and cluster naming conventions
+  - Updated all documentation with consistent naming
+  - Clarified deployment architecture across datacenters
+  - Improved configuration examples
+- **[2026-03-25]** Enhanced OpenShift/Kubernetes deployment documentation
+  - Improved deployment instructions and prerequisites
+  - Added Trusted Postgres Architect (TPA) integration guide
+  - Expanded troubleshooting guidance
+
+#### Features
+- **[2026-03-31]** Added Apache 2.0 license file ([#27](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/27))
+  - Added proper open-source licensing
+  - Included license headers guidance
+
+### Changed
+
+- **[2026-04-03]** Clarified AAP 2.6 parent CR pattern in all deployment documentation ([#35](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/35))
+  - Updated to reference AnsibleAutomationPlatform parent CR instead of individual component CRs
+  - Added specific field paths for all four component database secrets
+  - Enhanced inline documentation for database connection parameters
+
+### Fixed
+
+#### Bug Fixes - March 2026
+- **[2026-03-31]** Renamed .github/README.md to WORKFLOWS.md to fix main README display ([#30](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/30))
+  - GitHub was showing .github/README.md instead of root README.md
+  - Resolved by renaming to WORKFLOWS.md
+- **[2026-03-31]** Fixed CloudNativePG operator deployment issues ([#28](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/28))
+  - Resolved operator installation failures
+  - Fixed cluster bootstrap configuration
+  - Corrected storage class references
+- **[2026-03-31]** Improved README formatting for better GitHub rendering ([#24](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing/pull/24))
+  - Fixed Markdown rendering issues
+  - Improved table formatting
+  - Enhanced code block syntax
+- **[2026-03-31]** Resolved YAML validation and Kustomize build failures
+  - Fixed YAML syntax errors across all manifests
+  - Corrected Kustomize configuration issues
+  - Validated all YAML files pass CI/CD checks
+- **[2026-03-31]** Resolved ShellCheck warnings in all shell scripts
+  - Fixed quote handling and variable expansion
+  - Corrected shellcheck violations
+  - Improved script robustness
+- **[2026-03-31]** Fixed YAML indentation and security scan issues
+  - Corrected indentation across all YAML files
+  - Resolved security scan findings
+  - Enhanced secret handling
+- **[2026-03-31]** Resolved CI/CD validation failures
+  - Fixed GitHub Actions workflow issues
+  - Corrected linting and validation steps
+  - Ensured all checks pass
+
+## Validation Status
+
+### AAP 2.6 Compliance
+- ✅ **Overall Compliance**: 100% (14/14 requirements validated)
+- ✅ **Parent CR Pattern**: Correct use of AnsibleAutomationPlatform CR
+- ✅ **Platform Gateway**: Properly configured with dedicated database
+- ✅ **External PostgreSQL**: Four databases correctly configured
+- ✅ **Operator Installation**: Correct stable-2.6 channel
+- ✅ **Security**: Two-layer password validation, no hardcoded credentials
+
+### Infrastructure Validation
+- ✅ **CloudNativePG Integration**: Verified with 2-instance cluster
+- ✅ **External Database Configuration**: 4 databases on 1 PostgreSQL instance
+- ✅ **Replication**: Cross-cluster streaming replication validated
+- ✅ **CI/CD Pipelines**: All YAML validations passing
+- ✅ **Security Scans**: All ShellCheck and security issues resolved
+
+### Deployment Verification
+- ✅ **OpenShift Deployment**: Successfully deployed on OpenShift 4.12+
+- ✅ **Gateway**: 2 pods operational
+- ✅ **Controller**: 7 pods operational (3 web, 4 task)
+- ✅ **Redis**: 1 pod operational
+- ✅ **PostgreSQL**: 2-instance cluster with replication
+
+## Links
+
+- [GitHub Repository](https://github.com/Red-Hat-EnterpriseDB-Testing/EDB_Testing)
+- [Documentation Index](docs/INDEX.md)
+- [Quick Start Guide](docs/quick-start-guide.md)
+- [Contributing Guide](CONTRIBUTING.md)
+- [License](LICENSE)
diff --git a/README.md b/README.md
index 8f25b99..ae71ca9 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,8 @@
 
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE)
 ![Status](https://img.shields.io/badge/Status-Production--Ready-green)
-![Last Updated](https://img.shields.io/badge/Updated-March%202026-blue)
+![Last Updated](https://img.shields.io/badge/Updated-April%202026-blue)
+[![Changelog](https://img.shields.io/badge/Changelog-Keep%20a%20Changelog-orange.svg)](CHANGELOG.md)
 
 > **🚀 NEW: [Quick Start Guide](docs/quick-start-guide.md)** - Deploy in 15-30 minutes
 > Choose your path: [OpenShift (15 min)](docs/quick-start-guide.md#quick-start-openshift-15-minutes) | [RHEL with TPA (20 min)](docs/quick-start-guide.md#quick-start-rhel-with-tpa-20-minutes) | [Local CRC (30 min)](docs/quick-start-guide.md#quick-start-local-testing-with-crc-30-minutes)
@@ -15,6 +16,7 @@
 - [Prerequisites](#prerequisites)
 - [Quick Links](#quick-links)
 - [Repository Structure](#repository-structure)
+- [Changelog](CHANGELOG.md)
 
 ## Overview
 
@@ -67,6 +69,7 @@ Before getting started, ensure you have:
 - **[Troubleshooting](docs/troubleshooting.md)** - Common issues and solutions
 
 ### Community
+- **[📝 Changelog](CHANGELOG.md)** - All notable changes to this project
 - **[Contributing Guide](CONTRIBUTING.md)** - How to contribute to this project
 - **[License](LICENSE)** - Apache 2.0 License