I can confirm that the lastest version is partly ‘broken’, at least for me.
With the previous version everthing was working ok: nothing was changed in the theme or anything else, only updated the contact7 plugin to 3.9.2.
What is working as before (for me):
– normal email forms without ‘file upload’ -> the ajax progress indicator works, and you view the message ‘succeeded’ in the frontend. -> email arrives in my mailbox
What is not working anymore (for me):
– email form with ‘file upload’ -> ajax progress indicator keeps spinning; NO message ‘succeeded’ in the frontend -> email does however arrive in my mailbox (with the attachment)