Move from Umbraco 10, 11, 12 or 13 to Umbraco 17 LTS or 18, including the new backoffice, custom property editors and dashboards rebuilt as web components.
Since Umbraco 14 the backoffice has been rebuilt from the ground up. Any custom dashboards, property editors or section extensions written in AngularJS need to be re-created. We handle that, along with the code-level breaking changes in each major release.
We always upgrade through supported paths, test at every step, and leave you with a clean, documented solution.