First of all Hi ! I'm just starting my journey with Laravel on Laracast and I found that in the series first we Learn laravel 5.7 then there are What's New in Laravel 5.1 and so on. Should i stick to the path or watching "What's new.." is redundant
Laravel 5.7 from scratch should be fine. The latest version is 5.8 so you can always watch "What's new in Laravel 5.8" afterwards if you want to but not much has changed.
I would advise anybody who is just starting out with Laravel to read the docs at least once from A to Z. I remember at the beginning, even though I had good knowledge of PHP and had worked with CI and Yii etc., I still had moments like “where did Jeff get that?” Then I started reading the docs. Took me a whole afternoon to read it thoroughly and then it was infinitely easier to follow the videos along.
Laracasts is a wonderful product that can give you the basics, but if you don’t read the docs you are missing out on 90% of what you can do with the framework.