Hi guys
Thank you so much for your support and your help.
your answer have been very helpfully for me.
I am moving to Fedora and I am finishing customization for my job activities and now new release for fedora is available then my worry is because I do not like to do again all the customizations done (because time) but now all is more clear for me.
1.- Create a back up of my data.
2.- Create a media
3.- Start upgrade procedure.
I hope everything will be ok.
Best Regards.
Orma