mod_perl 2.0 provides new configuration directives for the newly added features and improves upon existing ones. For example, the PerlOptions directive provides fine-grained configuration for what were compile-time only options in the first mod_perl generation. The Perl*FilterHandler directives provide a much simpler Apache filtering API, hiding most of the details underneath. We will talk in detail about these and other options in the section Section 24.5.
The new Apache::Directive module provides a Perl interface to the Apache configuration tree, which is another new feature in Apache 2.0.