-=head1 NOTES
-
-Normally in versions of OpenSSL prior to 1.1.0 applications will only call
-CONF_modules_free() at application exit to tidy up any configuration performed.
-From 1.1.0 CONF_modules_free() is deprecated and no explicit CONF cleanup is
-required at all. For more information see L<OPENSSL_init_crypto(3)>.
-