[HACKERS] CommitFest 2017-09 - How do I know what commit to apply patches to

I was diving into CommitFest 2017-09 to help review some patches, but I was not sure which version / git commit / git tag of the PostgreSQL repo I should be checked out to in order to correctly apply / test these patches.  Is there a place within the CommitFest where it says what version to have checked out?

Thank you,

Ryan