After code changes by V0, when I try to download the zip file, most of the files are from older versions.
Hi @sultan-bouhassoun, welcome to the Vercel Community! 
Before downloading, try doing a hard refresh of the v0 page (Ctrl + F5 on Windows or Cmd + Shift + R on Mac). If that doesn’t work, clear your browser cache and try again. Also, give it a few moments after making changes, sometimes there’s a slight delay before everything syncs.
Let us know how it goes! 