New `WP_DEVELOPMENT_MODE` constant

[DSGND]

Maybe relevant to know:

Wordpress 6.3 will introduce a new `WP_DEVELOPMENT_MODE` constant.

https://make.wordpress.org/core/2023/07/14/configuring-development-mode-in-6-3/

Originally posted by @huubl in #672 (comment)

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It's just 1 line to change in 3 files :

• config/environments/local.php
• config/environments/development.php

=> Config::define('WP_DEVELOPMENT_MODE', env('WP_DEVELOPMENT_MODE') ?? 'all');

• .env (if necessary)

=> # WP_DEVELOPMENT_MODE=core ## core, plugin, theme, all (default) https://make.wordpress.org/core/2023/07/14/configuring-development-mode-in-6-3/

[DSGND]

Check this PR : 184366e

[QWp6t]

Since this triggers behavior changes, we need to weigh that against our goal of maintaining environment parity.

From the referenced blog post:

having the theme.json data cache bypassed would not represent the actual behavior intended for a regular WordPress site