Laravel v6.7.0 released

Laravel v6.7.0 is released in 2019/12/10, here are the changes we`ve merged into this release.

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#Added

• Added getQualifiedCreatedAtColumn() and getQualifiedUpdatedAtColumn() methods to HasTimestamps concern (#30792)
• Added exceptionContext() method to the Exceptions\Handler (#30780)
• Added ability for postmark transport to throw errors (#30799, 4320b82)
• Added withoutRelations() and unsetRelations() methods to HasRelationships (#30802)
• Added ResourceCollection::preserveQueryParameters() for preserve query parameters on paginated api resources (#30745, e92a708)

#Fixed

• Fixed explicit models in string-based database validation rules (#30790)
• Fixed Routing\RedirectController() (#30783)

#Changed

• Reconnect PhpRedisConnection on connection missing (#30778)
• Improved ShouldBroadcastNow performance (#30797, 5b3cc97)

GitHub: https://github.com/laravel/framework/releases/tag/v6.7.0