How to Test CI4 under Development

You can test develop branch while waiting for the new patch release.
https://codeigniter.com/user_guide/insta...latest-dev
and help us give more feedback in case of any regression.

Also, you can test the next Minor Version branch like 4.6.
https://codeigniter.com/user_guide/insta...or-version

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper