About whether we can open the old version for us to use #13
Description
First of all, please allow me to thank you for designing a website so that we can use the tool quickly. But I hope you'll enable us to use earlier versions of the tools. I have a 7.15 archive. And I found that it was too late. I can't upgrade this archive to 7.17. If so, the program will flash back. I think there is something wrong with my archive. I studied for a long time, because I didn't really have any knowledge about the code, I didn't succeed in the end. I hope you can open up early tools to help me, thank you.