All but six of the directives for Apache v2 are new. These continue in use:
SSLSessionCacheTimeout SSLCertificateFile SSLCertificateKeyFile SSLVerifyClient SSLVerifyDepth SSLRequireSSL
and are described earlier. There is some backward compatibility, explained at http://httpd.apache.org/docs-2.0/ssl/ssl_compat.html, but it is probably better to decide which version of Apache you want and then to use the appropriate set of directives.