I'm currently running Drupal 8.9.13, PHP 7.3, Lando 3.0.14, Docker 2.3.0.5, and Composer 1.10.1. I recognize all of these need to be upgraded as well as contrib modules (some of which require the latest Drupal/Composer/etc.). I'm looking for guidance as to what order these should be upgraded. What comes first?
PHP 7.3 => 7.4
Drupal 8.9.13 => 9.0.X
Lando 3.0.14 => 3.0.26
Composer 1.10.1 => 2.X
Do contrib module dependencies come before or after the above?
As mentioned in the below references i have tried upgrading the code base from Drupal 8.9.13 to 9. But still not able to complete due to some conflict with the requirements or minimum-stability.