How you get updates
New versions of Neutrino are delivered as files, from a download page you unlock with your license key. The page lists the versions your license covers, newest first. Older versions stay listed; you are never forced onto a newer one.
Releases are announced by email to customers whose update window is open. There is no in-theme update notice, no admin banner and no background check — the theme running on your site does not know or care that a new version exists, and never contacts us.
Ongoing subscribers can opt into having updates installed for them automatically, which removes the download-and-upload step entirely. It is optional, it involves handing over a credential for your site, and it deserves reading about properly before you enable it.