In Symfony applications, logging is available either via Symfony’s built-in logger
and or via the Monolog logger and its tight integration with Symfony. When using
Monolog you can access to features such as excluding certain HTTP codes from logs
and logging messages to different files.

In Symfony 5.4 we’ve improved the logger with a new feature to make exceptions
configurable per class. Using the new framework.exceptions option you can
now define the log level and the HTTP status of the exceptions associated to a
certain class:

Although this example uses the YAML config format, this feature is also available
when using XML or PHP as the config format.

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