Laravel 9.0 新機能 キャッチアップ

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
return new class extends Migration {
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('people', function (Blueprint $table)
        {
            $table->string('first_name')->nullable();
        });
    }
};

return Model::query()
	->whereNotExists(function($query) {
		// $query is a Query\Builder
	})
	->whereHas('relation', function($query) {
		// $query is an Eloquent\Builder
	})
	->with('relation', function($query) {
		// $query is an Eloquent\Relation
	});

Since PHP 8 will be the minimum, Tom Schlick submitted a PR to move to using str_contains(), str_starts_with() and str_ends_with() functions internally in the \Illuminate\Support\Str class.

Symfony deprecated SwiftMailer and Laravel 9 makes the change to use Symfony Mailer for all the mail transports. This does open up a few breaking changes and you can review the PR for all the details. The Laravel 9 upgrade guide will include instructions once it's officially released.