Is the new patch on the playable public build and do I need to start a new game to be able to interact with her after rescuing her from the astral planes. I've rescued her and still can't interact with her.
Nah, not on the public build yet: the most reliable way to check is to
go onto the home page to see what the latest "Public" build is for the game, then check to see if it contains what you're looking for. If the most recent post for the game is labeled "Backers" and has what you're looking for, then the public build isn't out yet, and you have to wait until it's available.
They come out on the second week of the month.
The easiest way to check is to
go onto the CoCII wiki to see the Version History (linked at the top of the main page) to see whether or not the last public build has the updates you're looking for.
And no,
you don't need to start a new game! If you find that you're playing the latest build (check the version number on the game's main page) that
should have some updates you can't access, check the forums/home page to see if other people have been having that same problem.
It's likely a bug, and if no one else has brought it up, you should
start a new thread in the Bug Reports subforum, explain the problem, and post your save (there's more detailed instructions about posting bug reports pinned to the top of that subforum).