Yes. Just install the latest updates to Subversion Edge.
Note: Until the master SVN server is running Subversion 1.7.x or later, the replica can
only expose Subversion 1.6.x features to the clients. This mainly means that clients
cannot take advantage of the new HTTPv2 protocol improvements until the master has
been upgraded to 1.7.x too. Subversion Edge takes care of all the details -- there
is nothing you need to do or configure.