I've just downgrade Lv 53 to 52. Here some notes: - update composer.json: laravel 5.3 to 5.2 + php 5.6.? to 5.5.9 + remove passport and related if use it. (OAuth json build in lv53 instead of JWT) + Copy default file in App\Http\MiddleWare and/or \Provider. + Update User.php model. + Update app, remove Notificable(?), and other class (don't remember) - Merge all route 5.3 web.php, api.php console.php to routes.php in App\Http\ in Lv 5.2 => run composer update. If error, trace to class and config/ to update. I'm too lazy to downgrade Xampp to php5.5 so still run on php 5.6 just fine. I install 2 version of Xampp on diff location and cant start it dependence. Still not try to run on Xampp php5.5. On Windows server I've try to install 2 version of xampp but no luck because may be some service of xampp can not use for both version. So I have to unistall old xampp and clean be4 install new version. I will write some note how to remove old Xampp service...
Some tribes of the programmer clan.