Update Roots Starter Theme to sage easy?

I am whondering if there is a esay why to update from roots starter theme 7.01 to latest sage on a server?
The server a have my shop on is one.com.

Thanks in advance

Being Sage is a starter them and has had so many core changes, you would be better off with a recode. I updated my theme from 8.5 to 9 but it pretty much required recoding 1 file at a time by hand to the new blade syntax and doing an overhaul of my core code to be up to date with the latest PSR standards.

Doable-- but definitely no “easy 123” way of doing it. Definitely worth it though.