Laravel v12.49.0 introduces a new hasSole() collection method for checking if a collection contains exactly one matching item, along with subquery between columns support, fluent resource collection key preservation, and more.

Laravel News

Laravel 12.49.0 introduces the hasSole() collection method for checking if exactly one item matches criteria, deprecating containsOneItem(). The release adds subquery support for whereBetweenColumns(), a fluent preserveKeys() method for resource collections, datetime values for maintenance mode retry options, and expanded enum support in session and cache methods. Bug fixes include a memory leak in Arr::dot() and improved multibyte string handling.

`hasSole()` Collection Method in Laravel 12.49.0