Creates a changelog file

Adds a changelog file to document notable changes to the project, adhering to Keep a Changelog format and Semantic Versioning conventions.

The changelog includes entries for recent releases, outlining added features, changes, and removals.

Author: bertugfahriozer

CHANGELOG.md

@@ -0,0 +1,34 @@
+# 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/1.1.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) conventions adapted to the existing four-component version numbers.
+
+## [0.26.3.0] - 2025-09-19
+### Added
+- Integrated the CI Log Viewer package and exposed a dedicated backend module for reviewing application logs.
+- Captured per-action permission flags as structured JSON when creating or updating backend methods.
+
+### Changed
+- Refreshed backend method management forms, navigation buttons, and module awareness.
+- Loaded SweetAlert assets globally for backend pages and updated in-app documentation links to their GitHub sources.
+
+### Removed
+- Dropped the legacy `module:create` CLI command in favour of the composer-driven module generator dependency.
+
+## [0.26.2.0] - 2025-09-17
+### Changed
+- Updated documentation links to reference the project root correctly.
+
+## [0.26.1.0] - 2025-09-17
+### Added
+- Published the initial developer documentation set for CI4MS.
+
+## [0.26.0.0] - 2025-09-17
+### Added
+- Expanded database migrations and introduced new supporting libraries.
+
+[0.26.3.0]: https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.26.3.0
+[0.26.2.0]: https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.26.2.0
+[0.26.1.0]: https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.26.1.0
+[0.26.0.0]: https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.26.0.0