Upgrade and compatibility review
Identify current core, module and theme versions, custom code and hosting requirements. Review the intended target and blockers using current project documentation.
Services
Plan the Drupal work around the actual site.
Versions, extensions, content and custom behavior determine the path. Review them before committing to an upgrade or rebuild.
Custom modules and themes
Develop or repair agreed behavior and presentation. Check public pages, responsive layouts and the editorial tasks affected by the change.
Content structure and editorial work
Review content types, fields, taxonomy and references. Agree roles, review steps and publishing responsibility so the new structure remains usable.
Content and file migration
Map source fields and relationships into the destination. Rehearse the move, list exceptions and compare important counts, files and representative pages.
Public URLs and connections
Inventory important paths and plan redirects for changed URLs. Review connected forms, search, analytics and external systems within the agreed scope.
Discuss the first Drupal scope. For a broader hosting move, see website and VPS migration.