[8.x] update changelog

Author: TBlindaruk

CHANGELOG-8.x.md

@@ -1,6 +1,18 @@
 # Release Notes for 8.x
 
-## [Unreleased](https://github.com/laravel/framework/compare/v8.0.3...8.x)
+## [Unreleased](https://github.com/laravel/framework/compare/v8.0.4...8.x)
+
+
+## [v8.0.4 (2020-09-11)](https://github.com/laravel/framework/compare/v8.0.3...v8.0.4)
+
+### Changed
+- Allow `Illuminate\Collections\Collection::implode()` when instance of `Stringable` ([#34271](https://github.com/laravel/framework/pull/34271))
+
+### Fixed
+- Fixed `DatabaseUuidFailedJobProvider::find()` job record structure ([#34251](https://github.com/laravel/framework/pull/34251))
+- Cast linkCollection to array in JSON pagination responses ([#34245](https://github.com/laravel/framework/pull/34245))
+- Change the placeholder of schema dump according to symfony placeholder in `MySqlSchemaState::dump()` ([#34261](https://github.com/laravel/framework/pull/34261))
+- Fixed problems with dots in validator ([8723739](https://github.com/laravel/framework/commit/8723739746a53442a5ec5bdebe649f8a4d9dd3c2))
 
 
 ## [v8.0.3 (2020-09-10)](https://github.com/laravel/framework/compare/v8.0.2...v8.0.3)