[6.x] update changelog

Author: TBlindaruk

CHANGELOG-6.x.md

@@ -5,6 +5,12 @@
 ### Fixed
 - Revert of ["Remove `strval` from `Illuminate/Validation/ValidationRuleParser::explodeWildcardRules()`"](https://github.com/laravel/framework/commit/1c76a6f3a80fa8f756740566dffd9fa1be65c123) ([52940cf](https://github.com/laravel/framework/commit/52940cf3275cfebd47ec008fd8ae5bc6d6a42dfd))
 - Fixed Queued Mail MessageSent Listener With Attachments ([#32795](https://github.com/laravel/framework/pull/32795))
+- Added error clearing before sending in `Illuminate\Mail\Mailer::sendSwiftMessage()` ([#32799](https://github.com/laravel/framework/pull/32799))
+- Avoid foundation function call in the auth component ([#32805](https://github.com/laravel/framework/pull/32805))
+
+### Changed
+- Added explicit `symfony/polyfill-php73` dependency ([5796b1e](https://github.com/laravel/framework/commit/5796b1e43dfe14914050a7e5dd24ddf803ec99b8))
+- Set `Cache\FileStore` file permissions only once ([#32845](https://github.com/laravel/framework/pull/32845), [11c533b](https://github.com/laravel/framework/commit/11c533b9aa062f4cba1dd0fe3673bf33d275480f))
 
 
 ## [v6.18.14 (2020-05-12)](https://github.com/laravel/framework/compare/v6.18.13...v6.18.14)