Previous versions of Contact Form 7 are all available:
- Go to contact-form-7/advanced
- Scroll to PREVIOUS VERSIONS at the bottom of the page
- Select your desired version from the drop-down select list.
Some users report that rolling back deleted all their CF7 forms
That’s never happened on any of our many sites, but to be safe you should export your contact forms first and save the file where you can find it if you need it. Just go to Export, and choose “contact forms”.