There's this comment in directory.c: ``` /* XXX+++++ Not all bridges handle conditional consensus downloading, * so, for now, never assume the server supports that. -PP * Is that assumption still so in 2016? -NM */ ``` And you're right, the conditional consensus stuff has been in since Tor 0.2.1.x. So I went to go rip out the special-casing code, but it already got ripped out in git commit 7988596f (which went into Tor 0.2.4.2-alpha). And then, inexplicably, I seem to have added the stanza back in during git commit a8297cdbd3 (which went into Tor 0.2.4.11-alpha). I just looked around at the code some more and I'm now convinced that indeed that code is gone. We should fix the comments.