
According to Bachhuber, WordPress 4.5 loads a file in wp-settings.php and since WP-CLI uses a custom wp-settings-cli.php file, 0.23.0 and above are the only versions compatible with WordPress 4.5. Bachhuber created a new ticket on Trac to start a discussion on using wp-settings.php instead of the custom file.
“WP-CLI uses a custom wp-settings-cli.php to load WordPress, instead of wp-settings.php. While I appreciate the historical justifications for the bootstrap process, it would be much better if WP-CLI could use wp-settings.php because, occasionally, there are substantial problems arising from needing to maintain a fork,” Bachhuber said.
To see a full list of changes with detailed explanations on how to use new features such as installing community commands from the package index, check out the release post.
Source: WP Tavern
