Django 5.2 introduces a new warning when using the runserver command, alerting developers that it's unsuitable for production use. The warning appears in bold yellow text and can be suppressed by setting the DJANGO_RUNSERVER_HIDE_WARNING environment variable to 'true'. The simplest approach is adding this environment variable setting at the top of your Django settings file. While the warning helps new users avoid production deployment mistakes, it may cause warning fatigue for experienced developers who have proper production setups.
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