Dev Notes #1 - Upgrade to Composer version 2

Recently I have upgraded to Composer version 2, as well as upgraded all globally installed packages. Here's a list of commands I have used:

• composer self-update --2 - Update composer to version 2. To read more about Composer 2 benefits, read the Composer 2.0 announcement. Read more about self-update command here.

• composer -V - check version
  

  $ composer -V
  Composer version 2.0.8 2020-12-03 17:20:38
  

• composer global show - Shows information about globally installed packages. Read more about the show command here.
  

  $ composer global show
  friendsofphp/php-cs-fixer          v2.17.3 A tool to automatically fix PHP code style
  laravel/installer                  v4.1.1  Laravel application installer.
  php-cs-fixer/diff                  v1.3.1  sebastian/diff v2 backport support for PHP5.6
  squizlabs/php_codesniffer          3.5.8   PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.
  

• composer global outdated - Shows a list of globally installed packages that have updates available, including their latest version. Read more about the outdated command here.
  

  $ composer global outdated
  php-cs-fixer/diff v1.3.1 v2.0.2 sebastian/diff v2 backport support for PHP5.6
  

• composer global update - Upgrades your global dependencies to the latest version according to composer.json, and updates the composer.lock file. Read more about the update command here.

• composer global update laravel/installer - Upgrades a given globally installed package to the latest version according to composer.json, and updates the composer.lock file.