This is a rfe related to security. Version 2.2.0p1 of openssh is available. This version supports dsa for agent authentication. You could also pick up x11-ssh-askpass 1.0.2 which was recently announced.
Also, 2.2.0p1 interoperates with SSH ltd's SSH-2.3.0. Waiting a few days would probably yield a version w/ sftp-server support in, too. .. and it detects /bin/login right in configure (UseLogin Yes is foobared in the current version on RHL).
A bug fix errata is being prepped. If 2.2.0p2 is release before we get it out, we'll pick it up and sftp-server will be included, otherwise we'll go with 2.2.0p1. Thanks!
*** Bug 18197 has been marked as a duplicate of this bug. ***
Changed from enhancement to high there is that interop problem with the latest ssh.com version.