How did I accidentally changed my form to version 4?

I am under deadline pressure and it's not a good time for me to be suddenly thrust into a completely new platform. But I was surprised this morning when I suddenly went into this particular form and it looks totally different. I do not remember clicking anything that gave permission to switch to v.4. When I go into a different form, it looks like the older version (v3, I presume).

I see that it's possible for me to revert the form, but now I have two questions:

1-what did I accidentally click or do to change it to v4, so I can avoid it while working on my deadline, and

2-how do I switch everything to v4 when I am ready?

Thank you!

Okay, now my problem is more complicated. I asked the form to revert to v3, but now I realize that this is a very old version, and I did not want this either.

How can I get back to the version that I was using just this past Friday?

And what happened today, that I was shown a completely different platform (on this form only), just this morning? Is there a version 3.5 that I'm not aware of? What version are all my other forms using? That's the one I want. How do I get there?

Thank you!

Ugh--it seems that this revert changed ALL my forms, and now I cannot navigate amongst my conditions to solve an urgent problem with my form: https://www.jotform.com//?formID=70336336191958

Where can I see a list of all the conditions in the entire form? More importantly, how can I undo this revert?

Thank you!

We are sorry for the inconvenience caused. Please be noted that the v3 or v4 is related to the form builder that changes the interface of the builder and not the form itself. If you want to use v3, you can switch to it from the account settings.

If your form is looking different in the preview, you can always revert the form the previous working version from the form revision history. 

https://www.jotform.com/help/294-How-to-view-form-revision-history

Hope this information helps! Please get back to us if you need any further assistance. We will be happy to help. 

Thank you for your answer. It is not problems with the form itself, but rather the platform for building the form that have changed. So I will look into account settings.

Will I run into any trouble with my forms by switching back and forth between versions? I'm not keen on using a beta right now, but I also don't want to be working in last year's version which is what I seem to have now. 

Thank you!

Oops--I found the answer to my problem without having to switch to version 4. On another one of my tickets this morning, I was told to use the URL:

https://www.jotform.com/index.php?formID={formID}&reset

and this did the trick. I was not understanding which versions were showing on my screen, which made it impossible to ask my question intelligently. I had previously (this morning) used the "&old" URL code to access a function that was part of an even older version than v3, and this happened around the same time that I had (somehow) a brief exposure to v4. The whole thing was very confusing, but I'm glad that I did not have to jump into v4 today, as I am not quite ready for it yet!

Thank you for your help, and it would be nice if there were not two totally different methods for switching between versions, so that these questions were easier to ask and get answers to!

Glad to see that you have figured out the issue and was able to edit the forms normally now. Please do not hesitate to get back to us if you need any further assistance. We will be happy to help.

Thank you for using JotForm!