Sitecore sites tend to outlive the partner that built them. Years later the company is left with a powerful platform, a long list of custom components, licence renewals and security bulletins that someone needs to act on.
Sitecore publishes mainstream and extended support dates for every XP and XM version, along with security bulletins and hotfixes. Our audit maps your version, modules and customisations against them, then we keep the site patched and agree whether to upgrade in place, move to XM Cloud or move to another CMS altogether.