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    Migrating Umbraco 7 Cloud project to Umbraco 8

    This article will provide detailed steps on how to migrate a Umbraco 7 Cloud project to Umbraco 8.

    Due to a known issue, it is currently not possible to perform a direct migration of your Umbraco 7 Cloud project to the latest Umbraco 8.

    We are working on resolving the issue to make the migration possible again.

    As a workaround, you can either

    The package mentioned above patches the migration process so you can migrate directly from the latest Umbraco 7 to the latest Umbraco 8 version without encountering issues. Do note that the package is currently not tested on Umbraco Cloud.

    Read the general article about Content migration to learn more about limitations and other things that can come into play when migrating your Umbraco site from 7 to 8.

    Video tutorial

    You can find the full playlist here: Migrate an Umbraco Cloud project from 7 to 8


    • A Umbraco 7 Cloud project running the latest version of Umbraco 7

    • Make sure Umbraco Forms data is not handled as content

    • A clean Cloud project running the latest version of Umbraco 8 with at least 2 environments

    We strongly recommend having at least 2 environments on the Umbraco 8 project.

    Should something fail during the migration, the Development environment can always be removed and re-added in order to start over on a clean slate.

    Step 1: Content migration

    • Clone down the Umbraco 7 Cloud project

    • Run the project locally and restore Content and Media

    • Clone down the Development environment from the Umbraco 8 Cloud project

    • Copy ~/App_Data/Umbraco.sdf or ~/App_Data/Umbraco.mdf from the cloned Umbraco 7 project

    • Paste the file into ~/App_Data on the clone of the Umbraco 8 project

    • Open web.config from the Umbraco 8 project

    • Locate the Umbraco.Core.ConfigurationStatus key

    • Replace the value 8.6 with the version your Umbraco 7 project is running - eg. 7.15.4

    • Run the Umbraco 8 project locally

    • The migration will need to be authorized - Cloud credentials are used for this

    If your login doesn't seem to be working, try the following approach:

    • Copy the UsersMembershipProvider attributes from your Umbraco 7 web.config, to the Umbraco 8 web.config
    • Try again

    Below is an example of how the attribute can look.

    <add name="UsersMembershipProvider" type="Umbraco.Web.Security.Providers.UsersMembershipProvider, Umbraco" minRequiredNonalphanumericCharacters="0" minRequiredPasswordLength="8" useLegacyEncoding="true" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" passwordFormat="Hashed" />

    Authorize upgrade

    • Click Continue to start the migration
    • When the migration is done, log in to the backoffice and verify that everything is there

    Please be aware that this is only a content migration.

    The database will be migrated, but upgrading view files and custom code and implementation is a manual process.

    See Step 3 of this guide, for more detail on this.

    Step 2: Files migration

    • The following files/folders need to be copied into the Umbraco 8 project

      • ~/Views - do not overwrite the default Macro and Partial View Macro files, unless changes have been made to these
      • ~/Media
      • Any files/folders related to Stylesheets and JavaScripts
      • Any custom files/folders the Umbraco 7 project uses, that aren't in the ~/Config or ~/bin
    • If Umbraco Forms is used on the Umbraco 7 project:

      • Copy ~/App_Data/UmbracoForms into the Umbraco 8 project
    • Config files need to be carefully merged, to ensure any custom settings are migrating while none of the default configurations for Umbraco 8 is changed

    • Run the Umbraco 8 project locally

      • It will give you a YSOD / error screen on the frontend as none of the Template files have been updated yet
    • Open CMD in the ~/data folder on the Umbraco 8 project

    • Generate UDA files by running the following command: echo > deploy-export

    • Once a deploy-complete marker is added to the ~/data folder, it is done

    • Check ~/data/revision to ensure all the UDA files have been generated

    • Run echo > deploy in the ~/data folder to make sure everything checks out with the UDA files that were generated

    • This check will result in either of the two:

      • deploy-failed
        • Something failed during the check
        • Run echo > deploy-clearsignatures followed by echo > deploy to clear up the error
      • deploy-complete
        • Everything checks out: Move on to the next step

    Step 3: Setup custom code for Umbraco 8

    Umbraco 8 is different from Umbraco 7 in many ways. This means that in this step, all custom code, controllers, and models need to be reviewed and rewritten for Umbraco 8.

    Many of the changes have been documented, and the articles are listed here: Umbraco 8 Documentation Status.

    Found something that has not yet been documented? Please report it on our issue tracker.

    Example of changes that need to be made

    One of the changes made is how published content is rendered through Template files. Due to this, it will be necessary to update all Template files (.cshtml) to reflect these changes.

    Read more about these changes in the IPublishedContent section of the Documentation.

    • Template files need to inherit from Umbraco.Web.Mvc.UmbracoViewPage<ContentModels.HomePage> instead of Umbraco.Web.Mvc.UmbracoTemplatePage<ContentModels.HomePage>

    • Template files need to use ContentModels = Umbraco.Web.PublishedModels instead of ContentModels = Umbraco.Web.PublishedContentModels

    • @Model.Value("propertyAlias") replaces @Umbraco.Field("propertyAlias")

    • @Model.PropertyAlias replaces @Model.Content.PropertyAlias

    Depending on the size of the project that is being migrated and the amount of custom code and implementations, this step is going to require a lot of work.

    Step 4: Deploy and test on Umbraco Cloud

    Once the Umbraco 8 project runs without errors on the local setup, the next step is to deploy and test on the Cloud Development environment.

    • Push the migration and changes to the Umbraco Cloud Development environment

    The deployment might take a bit longer than normal.

    To track the process, keep an eye on the deploy markers in site/wwwroot/data using KUDU.

    • The deployment will result in either of the two:

      • deploy-failed
        • Something failed during the check
        • Run echo > deploy-clearsignatures followed by echo > deploy to clear up the error
      • deploy-complete
        • Everything checks out: The Development environment has been upgraded
    • Transfer Content and Media from the local clone to the Development environment

    • Test everything on the Development environment

    • Deploy to the Live environment

    Step 5: Going live

    Once the migration is complete, and the Live environment is running without errors, the site is ready for launch.

    • Setup rewrites on the Umbraco 8 site
    • Assign hostnames to the project
      • Note that hostnames are unique, and can only be added to one Cloud project at a time