The CF starts the day after tomorrow. If you've been working on a
patch and you want feedback, you must post it to the -hackers list
and create an entry in the CF application before the start of the
CommitFest, or you will likely need to wait until the September CF
for a review.
See this Wiki page for more information about submitting a patch:
http://wiki.postgresql.org/wiki/Submitting_a_Patch
The link to whatever CF is open to new submissions is always:
http://commitfest.postgresql.org/action/commitfest_view/open
During the review phase, the link for the CF in progress is:
http://commitfest.postgresql.org/action/commitfest_view/inprogress
-Kevin