[Snyk] Security upgrade Umbraco.Cms from 17.0.0 to 18.0.0

[jcdc-bot]

Snyk has created this PR to fix 1 vulnerabilities in the nuget dependencies of this project.

Snyk changed the following file(s):

• src/jcdcdev.Umbraco.ReadingTime.TestSite/jcdcdev.Umbraco.ReadingTime.TestSite.csproj

Vulnerabilities that will be fixed with an upgrade:

	Issue
	Uncontrolled Recursion SNYK-DOTNET-MICROSOFTOPENAPI-17816696

Breaking Change Risk

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[jcdc-bot]

The upgrade to Umbraco.Cms v18.0.0 is a major version with significant breaking changes, including mandatory data migrations and API replacements. Developer action is required before and after the upgrade.

Key Breaking Changes:

• Single Block Migration: A data migration for Block List property editors, which was optional in v17, now runs automatically. If you use custom property editors that nest block list values, you must implement and register an ITypedSingleBlockListProcessor before upgrading to prevent data loss.
• OpenAPI/Swagger API Changes: The method for registering OpenAPI documents has been changed. You must replace IConfigureOptions<SwaggerGenOptions> with the new AddOpenApi() method. Several related interfaces for handling schema and operation IDs have been removed entirely.
• Media Recycle Bin: The EnableMediaRecycleBinProtection setting is now enabled by default, which renames deleted media files. It is recommended to empty the media recycle bin before upgrading to avoid potential issues.
• Database Time Zone Migration: The upgrade will automatically migrate all system dates in the database from server time to UTC.

Recommendation:

This upgrade requires careful planning. Review the official breaking changes documentation thoroughly. Ensure you have a complete backup of your database and files before proceeding. Pay special attention to the required implementation of ITypedSingleBlockListProcessor if your project is affected.

Source: Umbraco Breaking Changes Overview, Umbraco 18 Release Announcement

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

[jcdc-bot]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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