Yes there is Dennis, go to your profile (top right this screen), select download and you will see the user manual. Of course the inbuilt help is also a user manual which always opens at the appropriate section related to what you are doing.

If you are familiar with v12 you would be well advised to read each of the links provided by Aleksej in your post https://helpcenter.websitex5.com/ru/post/225096 so you can come up to speed with the various changes and new features.

Hello!

Useful? https://guide.websitex5.com/en/support/home

Version compatibility is indicated... (Compatibility: WebSite X5 Pro since version 2020.1) ...

Nice day to you,

J.P.