v11.55.0
[11.x] Add `fromUrl()` to Attachment (#52688)
[9.x] Implement Symfony Mailer (#38481)
[10.x] Fix decoding issue in MailLogTransport (#49727)
Fix Apostrophe Handling in SeeInOrder.php and Enhance Test Coverage (#52627)
[11.x] apply our new Pint rule to the `/tests` directory (#54325)
Revert "[11.x] Use Str::wrap() instead of nesting Str::start() inside Str::finish()" (#54528)
[10.x] Adds inline attachments support for markdown mailables (#47140)
Revert "set schema to smtps if MAIL_ENCRYPTION === tls" (#53863)
Add `Illuminate\Support\EncodedHtmlString` (#54737)
Update tests to ensure MailMessage implements the fluent interface pattern (#51969)
use new PHP 8 `str_` functions (#53817)
[10.x] Remove redundant 'setAccessible' methods (#47348)
[11.x] Container shares fixed values/initialized instances instead of singleton closure resolutions (#51804)