Update Changelog for v1.4.0

Author: rlaphoenix

CHANGELOG.md

@@ -5,6 +5,24 @@ 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).
 
+## [1.4.0] - 2023-10-12
+
+## Added
+
+- Added function `open_stream()` that calls the `dvdcss_open_stream` function of the libdvdcss library.
+- Defined `dvdcss_stream_cb`, `pf_seek`, `pf_read`, `pf_readv`, and `dvdcss_open_stream`.
+
+## Changed
+
+- Various structural and organisational changes to the repository, CI/CD, and more.
+- Updated dependencies as far as I could while keeping support for actively supported versions of Python.
+- Moved all documentation dependencies from dev to main group as optionals installed through the `docs` extra.
+
+## Removed
+
+- Dropped support for Python 3.5, 3.6, and 3.7. This is to have support for the latest dependency versions.
+- Removed all uses of poetry-dynamic-versioning as it's simply unnecessary.
+
 ## [1.3.2] - 2021-04-18
 
 ### Added
@@ -140,6 +158,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Initial release.
 
+[1.4.0]: https://github.com/rlaphoenix/pydvdcss/releases/tag/v1.4.0
 [1.3.2]: https://github.com/rlaphoenix/pydvdcss/releases/tag/v1.3.2
 [1.3.1]: https://github.com/rlaphoenix/pydvdcss/releases/tag/v1.3.1
 [1.3.0]: https://github.com/rlaphoenix/pydvdcss/releases/tag/v1.3.0