I am currently running Codeception 2.4, but want to update to the newest version.
How can I update Codeception and all the other packages to the newest version?
Did you try composer update ?
first do:composer remove codeception/codeception
then composer require "codeception/codeception:3.0.0"
Next time you can modify version constraint in composer.json and run composer update
Alright, I will do that in the future.