vim netrw: ***warning*** this version of netrw needs vim 7.3.465 or later

I got this message when I copy my .vim into a server running old vim:
***warning*** this version of netrw needs vim 7.3.465 or later

server vim:
VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Jan 31 2011 23:23:08)

this is fine. I thought just new feature won't work, but the fact it
looks like the whole netrw doesn't work at all - I can't open(:edit .) a
folder now.

should this behavior of new netrw changed to be more "backward-compatible"?

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.