Version specific upgrade notes

    This page covers specific upgrade documentation for specific versions.

    Version 11


    Version 11 of Umbraco Forms has a minimum dependency on Umbraco CMS core of 11.0.0. It runs on .NET 7.

    Breaking changes

    Version 11 contains a number of breaking changes. We don't expect many projects to be affected by them as they are in areas that are not typical extension points. For reference though, the full details are listed here:

    • A CSS class for each field is rendered out matching the caption of the form field. This has been changed to use the alias of the form field, as this is considered less likely to change and potentially break custom styles.
    • The int DeleteFormRecords(Form form, FormState formState, DateTime deleteRecordsCreatedEarlierThan) method was added to IRecordStorage.
    • Name of FormsUmbracoBuiderExtensions was corrected to FormsUmbracoBuilderExtensions.
    • The method RegenerateFormStructureIds on Form was amended to return a response.
    • The method void ExecuteWorkflows(List<IWorkflow> workflows, Record record, Form form, FormState state) was added to IWorkflowExecutionService.
    • Obsolete constructor on PlaceholderParsingService removed.
    • Obsolete constructor on ServerVariablesParsingHandler removed.
    • IsMandatory and Condition properties were added to the IWorkflow and IWorkflowEntity interface.
    • DaysToRetainSubmittedRecordsFor and DaysToRetainApprovedRecordsForproperties were added to the IFormEntity interface.
    • Obsolete constructor on the export type ExportToExcel removed.
    • Obsolete constructor on the workflow type SendRazorEmail removed.
    • Obsolete constructor on the controllers UmbracoFormsController, ExportController, FieldController, FormController, RecordController, and EmailTemplateTreeController removed.
    • Duplicate method GetAllDocumentTypesWithAlias in PickerController was removed.
    • Obsolete overloads to the Build method on FormViewModel were removed.
    • Obsolete constructor on FormRenderingService was removed.
    • Legacy storage of prevalues with captions using a single string with a separator was updated to store them as an object with a value and caption.
      • A JsonConverter was added to FormsJsonSerializerSettings that will convert forms saved in older versions with the string storage into the new structure.
      • The public field Field.PrevalueCaptionSeparator was removed.
      • Field.Prevalues now returns IEnumerable<FieldPrevalue> instead of IEnumerable<string>, and the property Field.ParsedPreValues was removed.
    • The obsolete overload of the methods Test and TestRule in FieldConditionEvaluation was removed and the existing method made private.
    • The obsolete overload of the method IsVisible in FieldConditionEvaluation was removed.
    • The property ConditionCheckFunctions was added to the IFieldType interface.
    • The property Alias was added to the interfaces for all provider types inheriting from ProviderBase.

    Version 10


    Breaking changes

    • The default theme has been updated to render captions for field types that support prevalues. If you have created any custom themes, please review the default theme and ensure you make similar changes to make use of the new feature.
    • The method PreValues on the FieldViewModel type has been changed from a collection of strings to a collection of a PrevalueViewModel object that has a Value and Caption property.
    • In order to fix an issue with display and editing of values, we've found a need to ensure the property representing the fields a record entry used in the backoffice is changed from a list of values to a structure containing the field Ids and values. Specifically, EntrySearchResult.Fields has changed type IEnumerable<object?> to IEnumerable<EntrySearchResult.FieldData>. The only scenarios affected by this would be anyone handling the EntrySearchResultFetchingNotification notification or developing custom export types.


    Version 10 of Umbraco Forms has a minimum dependency on Umbraco CMS core of 10.0.0. It runs on .NET 6.

    To migrate to version 10, you should first update to the latest minor release of version 9. If you are upgrading from Umbraco 8, update Forms to the latest minor version of Forms 8 and ensure you have the configuration in place for storing form definitions in the database. For more information, see the Umbraco Forms in the Database article.

    Either way will ensure you have all the database schema changes in place.

    Views and client-side files

    Umbraco 10 distributes the views and client-side files as part of a Razor class library, distributed in the Umbraco.Forms.StaticAssets package. This means these assets are no longer individual files available on disk. The advantage of this approach is that that avoids changes made to them by solution developers being inadvertently lost when the project is rebuilt.

    When upgrading from Forms 9, you should either first run a dotnet clean, or, after installing Forms 10, delete the App_Plugins/UmbracoForms folder. This will ensure there aren't two copies of the package.manifest file, which would cause issues by registering duplicate property editors.

    For views, assuming you are using the default theme and templates, you should also remove the following folders and files (again, either via a dotnet clean before upgrading, or manually afterward):

    • /Views/MacroPartials/InsertUmbracoFormWithTheme.cshtml
    • /Views/MacroPartials/RenderUmbracoFormScripts.cshtml
    • /Views/Partials/Forms/

    If you have custom themes or other changes to the files in the Views/Partials/Forms folder, you should ensure those files remain.

    For example, with a custom email template, remove the file Example-Template.cshtml from the /Views/Forms/Emails folder but keep any custom templates.

    Similarly, if you have a custom theme, remove the default and bootstrap3-horizontal folders from the /Views/Partials/Forms/Themes/ folder but keep any custom theme folders.

    Breaking changes

    Version 10 contains a number of breaking changes but we won't expect many projects to be affected by them as they are in areas that are not typical extension points. For reference though, the full details are listed here.

    • Renamed the configuration option to allow editable form submissions on the front-end to AllowEditableFormSubmissions (fixing the typo in the previous value of AllowEditableFormSubmissions).
    • DatabaseIntegrityHealthCheck has an altered constructor taking an additional parameter.
    • The EventExtensions class is no longer used since V9 and has been removed.
    • Static events from BaseFileStorage removed and replaced with notifications.
    • IFormTemplateStorage along with its implementation in FormTemplateStorage and base classes have been simplified, as templates are the only file based storage now in use, and there are no methods necessary for this other than reading.
    • The method GetScaffold has been removed from FormController, as it's not called from the UI.
    • The following classes have altered constructors taking additional parameters, with obsolete versions removed.
      • RecordController
      • FormSecurityController
      • FormSecurityTreeController
      • PostToUrl
      • WorkflowEmailService
    • The public fields on the Setting class have been converted to properties.
    • The methods GetMemberCacheKey and GetMemberValuesCacheKey onCacheKeys taking an integer parameter have been removed.
    • The method GetUserSecurity on IUserSecurityStorage has been amended to take an integer parameter rather than an object.
    • The method StringExtensions.DetectIsJson has been removed (the equivalent exists in CMS).
    • Obsoleted methods in FieldConditionEvaluation have been removed.
    • The following unused classes have been removed:
      • FormEventArgs
      • FolderEventArgs
      • FieldPreValueSourceEventArgs
      • FormDataSourceEventArgs
      • WorkflowEventArgs
      • BaseStorageEventArgs Additional methods have been added to the following interfaces:
    • IRecordStorage
    • IRecordFieldValueStorage
    • IUserSecurityStorage
    • IUserFormSecurityStorage
    • IFormsSecurity
    • Additional properties of SupportsMandatory and EditType have been added to the IFieldType interface.
    • The obsoleted method RegenerateFieldSetAndFieldIds on Form has been removed,
    • The constructor of FolderNotificationHandler had an unused parameter removed.
    • The obsolete and unused methods CanCurrentUserEdit, CanCurrentUserAddInEditor, CanCurrentUserManageWorkflows, EnsureUserExists and CanCurrentUserExport were removed from the IFormSecurity interface.
    • The type parameter TEventArgs defined on IBaseService (and derived interfaces) has been removed.
    • Database migration classes inheriting from FormsMigrationBase now use the non-obsolete base constructor defined on PackageMigrationBase.
    • The methods on IPlaceholderParsingService have been combined into a single one with optional parameters.
    • The method PostSave on FormSecurityController has been renamed to PostSaveForUser.
    • The backoffice model class FormSecurity has been renamed to FormSecurityForUser.
    • The unused class NonSerialiazableTypeSurrogateSelector was removed.
    • The unused method ImportXmlNodeFromText on XmlHelper was removed.
    • IFormService.FormExist was renamed to IFormService.FormExists.
    • EntrySearchResultCollection.schema was capitalized.
    • Base class ExportType has a constructor taking IHostEnvironment instead of IHostingEnvironment.
    • Typo was fixed in the class name of TempDataDictionraryExtensions.
    • The SetFormThemeCssFile extension method had an unused variable removed.
    • Various method signatures have had appropriate modifications for nullable reference type support.
    • Removed BaseFileStorage, BaseFileSystemStorage and FormsFileSystemForPackageData as they are no longer needed following changes to support distribution of assets in a razor class library.

    Version 9

    Version 9 of Umbraco Forms has a minimum dependency on Umbraco CMS core of 9.0.1 and runs on .NET 5.


    See notes under 10.1.

    Version 8

    Version 8 of Umbraco Forms has a minimum dependency on Umbraco CMS core of 8.0.0 and runs on .NET Framework 7.2.

    In order to upgrade from Umbraco Forms 7 to Umbraco Forms 8 make sure you read the Manual Upgrade instructions.


    See notes under 10.1.

    Version 4 to Version 6

    Upgrading to Version 6 of Umbraco Forms, has a higher minimum dependency on Umbraco CMS core of 7.6.0 & higher. The reasoning behind this is due to some underlying changes to ensure Forms works with Umbraco Cloud & Deploy.

    With Umbraco you have many options to upgrade Umbraco Forms.

    • You can install the Forms package via the community package search from within the Developer Tab in the CMS
    • Umbraco Forms can be downloaded directly from
    • You can download a ZIP file containing the updated files which you can unzip & apply over the top of your existing install
    • You can upgrade Forms using NuGet. Doing this will require a few more steps, which you can find in the next section

    Upgrading with NuGet

    Using NuGet to perform an Upgrade of Umbraco Forms to the next major version, you will run into a problem where the legacy MacroPartial view file will be removed from the site. This causes any existing Umbraco Forms rendered on the site to stop functioning. Before running the site after the NuGet upgrade again; consider this may need to be done on each environment depending on your deployment process/setup. You will need to copy/restore the following file Views/MacroPartials/InsertUmbracoForm.cshtml from your source control solution.

    The file needs to be here before the site is restarted - due to the migration/upgrade tasks listed below.

    For new & clean installs done with NuGet this will not be a problem for you, as only the new Macro & its associated MacroPartial view file is part of the new NuGet version.

    Upgrade tasks

    The following outlines for version 6.0.0 what upgrade/migration tasks that are being performed:

    • Rename legacy macro to make it easier to identify in the backoffice
    • Adds new form macro to insert a form with a theme
    • Moves JSON Form Storage files from App_Plugins/UmbracoForms/Data to App_Data/UmbracoForms/Data by default unless a custom Forms IFileSystem is configured such as Azure blob storage
    • Moves any Form PreValue sources that uses text files that were uploaded to the media section & now stores in the Umbraco Forms IFileSystem


    We highly recommend you make the switch away from the legacy macro and swap over to the newer macro that supports the new 6.0.0 feature of themes. The legacy macro is there to ease the transition over and to avoid entire sites forms to stop working.