Gravity Forms v1.6 Release Candidate 2 was just released yesterday, but unfortunately it introduced it's own bug that caused double quotes used in fields to disrupt the form editor from being able to save forms when making changes.
We have corrected this issue and Gravity Forms v1.6 Release Candidate 3 is now available. We are very close to a final release and this may be the last release candidate before public release via automatic update.
Thank you to the users who have contributed bug reports, we look forward to continue receiving feedback from users who are participating in the testing.
Please provide beta feedback and bug reports on the Support Forum and make it clear you are referring to the 1.6 Release Candidate 3 release when doing so. Thanks!