Migrating to Symfony 3.4 to 4.0 with Flex

Looking forward to migrate Symfony 3.4 to 4 with Flex, here I found really well explained process.

[Part 1/2] Migrating to Symfony 4.0 with Flex
[Part 2/2] Migrating to Symfony 4.0 with Flex

Author: Danyal
I'm working as programmer since 2002. Born, grew up, studied and worked in Pakistan now Im located in Denmark since 2006.