Upgrade stable 15.2 to 15.3

I have a bootable Leap 15.3 USB and a stable running 15.2.
I am dual booting Win10 and Leap 15.2
What is my most reliable upgrade path ?
Thanks in advance.

I would use (and most probably will use somewhere this summer) the on-line method.

A “Live CD” or, an “Offline image” or, a “Network image”?

  • My personal preference is to use a bootable image and the “offline upgrade” but, the network upgrade by means of “zypper dup” (“zypper dist-upgrade”) is also OK.

Simply follow the instructions here for a “live upgrade” – <https://en.opensuse.org/SDB:System_upgrade>.