The last bugfix release for v1.4.x.

- [#10641](https://github.com/Sylius/Sylius/issues/10641) [Documentation] Fixtures customization guides - fixes ([@CoderMaggie](https://github.com/CoderMaggie), [@Zales0123](https://github.com/Zales0123))

- [#10645](https://github.com/Sylius/Sylius/issues/10645) [Docs] Fix Blackfire Ad ([@Tomanhez](https://github.com/Tomanhez))

- [#10646](https://github.com/Sylius/Sylius/issues/10646) [Docs] Fix Ad ([@Tomanhez](https://github.com/Tomanhez))

- [#10649](https://github.com/Sylius/Sylius/issues/10649) Update online course ad ([@kulczy](https://github.com/kulczy))

- [#10652](https://github.com/Sylius/Sylius/issues/10652) Add Sylius 1.6 banner to the docs ([@kulczy](https://github.com/kulczy))

- [#10680](https://github.com/Sylius/Sylius/issues/10680) Fix ChannelCollector related serialization issue in Symfony profiler ([@ostrolucky](https://github.com/ostrolucky))

- [#10701](https://github.com/Sylius/Sylius/issues/10701) [Maintenance] Update docs with v1.6 ([@lchrusciel](https://github.com/lchrusciel))

- [#10710](https://github.com/Sylius/Sylius/issues/10710) [Address book] Extensibility improvements ([@cyrosy](https://github.com/cyrosy))

- [#10713](https://github.com/Sylius/Sylius/issues/10713) [Behat] Improve dashboard page extensibility ([@loic425](https://github.com/loic425))

- [#10727](https://github.com/Sylius/Sylius/issues/10727) Fix channels label size and alignment ([@kulczy](https://github.com/kulczy))

- [#10732](https://github.com/Sylius/Sylius/issues/10732) Update course ad ([@kulczy](https://github.com/kulczy))

- [#10739](https://github.com/Sylius/Sylius/issues/10739) [Admin][Adressing] fixed province code validation regex ([@twojtylak](https://github.com/twojtylak))