chore: add CHANGELOG.md and bump version to 0.4.1

Add a Keep a Changelog-formatted CHANGELOG.md documenting the full release
history from 0.0.1 through 0.4.1, and bump the project version to 0.4.1.

Author: frgmt

CHANGELOG.md

@@ -0,0 +1,129 @@
+# Changelog
+
+All notable changes to `django-fernet-encrypted-fields` are documented here.
+
+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).
+
+## [0.4.1] - 2026-04-15
+
+### Added
+
+- `CHANGELOG.md` documenting the full release history of the project.
+
+### Changed
+
+- Applied `ruff format` across the codebase and enforced formatting in CI
+  ([#40](https://github.com/jazzband/django-fernet-encrypted-fields/pull/40)).
+- Moved `ruff` lint configuration into a dedicated `[tool.ruff.lint]` section and
+  lowered the `target-version` to the earliest supported Python version.
+- `pre-commit` now runs `ruff format` in addition to `ruff check`.
+- Packaging metadata now sources the version directly from `pyproject.toml`.
+
+### Fixed
+
+- CI no longer runs `ruff check` during the installation step.
+
+## [0.4.0] - 2026-04-14
+
+### Added
+
+- Jazzband contributing guide ([#37](https://github.com/jazzband/django-fernet-encrypted-fields/pull/37)).
+- `dev` dependency group in `pyproject.toml` (mypy, pre-commit, ruff, pytest, pytest-cov, coverage).
+- Django 6.0 compatibility ([#32](https://github.com/jazzband/django-fernet-encrypted-fields/pull/32)).
+
+### Changed
+
+- Migrated project to a `src/` layout ([#39](https://github.com/jazzband/django-fernet-encrypted-fields/pull/39)).
+- Bumped minimum required Python version to **3.10**.
+- CI now installs the package before running the test suite and uses the `dev` dependency group.
+
+### Removed
+
+- `requirements.txt` (dependencies are now fully managed via `pyproject.toml` with version ranges).
+
+## [0.3.1] - 2025-11-10
+
+### Changed
+
+- Raised minimum Django requirement to **Django 4.2** ([#28](https://github.com/jazzband/django-fernet-encrypted-fields/pull/28)).
+- Updated the supported Python / Django version matrix in CI (excluded Python 3.13 with Django 4.2, etc.).
+
+## [0.3.0] - 2025-02-21
+
+### Changed
+
+- Project moved to the **Jazzband** organization (author, URL, and maintainer metadata updated)
+  ([#25](https://github.com/jazzband/django-fernet-encrypted-fields/pull/25)).
+
+## [0.2.0] - 2025-01-06
+
+### Added
+
+- Support for Django's `SECRET_KEY_FALLBACKS` to enable secret key rotation
+  ([#24](https://github.com/jazzband/django-fernet-encrypted-fields/pull/24)).
+- README documentation describing the secret-key rotation workflow.
+- `pre-commit` configuration.
+
+### Fixed
+
+- `SECRET_KEY_FALLBACKS` handling for Django `< 4.1`.
+- Lint errors and GitHub Actions workflow triggers.
+
+## [0.1.3] - 2023-07-24
+
+### Added
+
+- Support for encrypted JSON fields (`EncryptedJSONField`) with tests ensuring key retention
+  ([#14](https://github.com/jazzband/django-fernet-encrypted-fields/pull/14)).
+
+### Changed
+
+- Set minimum required Django version to **3.2**.
+
+### Fixed
+
+- `EncryptedIntegerField`: corrected `get_prep_value` / `to_python` behavior
+  ([#11](https://github.com/jazzband/django-fernet-encrypted-fields/pull/11)).
+
+## [0.1.2] - 2022-05-17
+
+### Fixed
+
+- `EncryptedIntegerField` now properly exposes default validators via a `cached_property`,
+  restoring expected validation behavior ([#10](https://github.com/jazzband/django-fernet-encrypted-fields/issues/10)).
+
+## [0.1.1] - 2021-12-19
+
+### Fixed
+
+- Django Admin no longer raises an exception when saving encrypted fields. A semaphore
+  flag in `clean()` prevents `to_python()` from attempting to decrypt an already-decrypted
+  value during form cleaning ([#4](https://github.com/jazzband/django-fernet-encrypted-fields/issues/4)).
+
+## [0.1.0] - 2021-12-15
+
+### Added
+
+- Support for multiple `SALT_KEY` values, enabling SALT rotation while still decrypting
+  data encrypted with legacy salts.
+- Unit tests covering salt rotation with a retained legacy salt.
+- README documentation for rotating salts.
+- GitHub Actions CI: linting (black, flake8), testing, and coverage across multiple Python versions.
+
+## [0.0.2] - 2021-09-30
+
+### Added
+
+- `long_description` (sourced from `README.md`) and `long_description_content_type` in
+  `setup.py` so the project description renders correctly on PyPI.
+
+## [0.0.1] - 2021-09-30
+
+### Added
+
+- Initial release inspired by `django-encrypted-fields`.
+- Symmetric encryption for Django model fields backed by Fernet, including:
+  `EncryptedFieldMixin`, `EncryptedTextField`, `EncryptedCharField`,
+  `EncryptedDateTimeField`, `EncryptedIntegerField`, `EncryptedDateField`,
+  `EncryptedFloatField`, `EncryptedEmailField`, `EncryptedBooleanField`.

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "django-fernet-encrypted-fields"
-version = "0.4.0"
+version = "0.4.1"
 description = "Symmetrically encrypted model fields for Django"
 readme = "README.md"
 license = "MIT"