Combined Developer Sandboxes release notes for upgrades from Yokohama to Zurich

  • Release version: Zurich
  • Updated August 11, 2026
  • 3 minutes to read
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    Summary of Combined Developer Sandboxes Release Notes for Upgrades from Yokohama to Zurich

    This consolidated release notes document provides ServiceNow customers with essential information on upgrading Developer Sandboxes from the Yokohama release to the Zurich release. It highlights new features, important pre- and post-upgrade tasks, and key enhancements introduced in the Zurich release. The notes aim to help customers effectively prepare for and manage their Developer Sandboxes environment during the upgrade process.

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    Key Features Introduced in Zurich

    • Sandbox Management Home Dashboard: Administrators can now view comprehensive details of sandboxes within their instance, including total, available, and allocated sandboxes. The dashboard also displays sandbox status, data utilization, ownership, last access time, and allocation date.
    • Sandbox Templates: Delegated developers can reuse predefined data templates, enabling efficient testing without manual data input for each sandbox.
    • Data Generation Profiles: Customers can generate test data for Developer Sandboxes independently or within the sandbox context. This uses statistical sampling and curated mappings to populate sandboxes with relevant data, overcoming limitations of copying all instance data.
    • Sandbox Allocation: Sandboxes can be allocated to development teams to streamline development workflows.
    • Sandbox Retirement: Outdated sandboxes can be retired to free up resources for new sandbox creation.
    • Automatic Backup of Update Sets: For instances with Developer Sandboxes installed post-Zurich Patch 5, update sets are automatically backed up during upgrades, enhancing data protection.

    Upgrade and Activation Considerations

    • No changes, removals, or deprecations were reported between Yokohama and Zurich for Developer Sandboxes, simplifying upgrade planning.
    • To activate Developer Sandboxes in Zurich, customers must contact their ServiceNow account manager to install the feature.
    • There are no new additional requirements, browser compatibility changes, accessibility considerations, or localization updates introduced in this upgrade.

    Benefits for ServiceNow Customers

    • Improved Sandbox Visibility and Management: The centralized dashboard provides administrators and delegated developers with real-time insights into sandbox usage and status.
    • Enhanced Developer Productivity: Sandbox templates and data generation profiles reduce manual setup time, enabling faster and more reliable testing cycles.
    • Better Resource Utilization: The ability to retire unused sandboxes ensures optimal use of sandbox capacity.
    • Data Safety: Automatic backup of update sets during upgrades safeguards development progress.
    • Developer Isolation and Parallelism: Zurich release provides isolated development environments on a shared instance, allowing parallel development efforts without interference.

    Consolidated page of all release notes for Developer Sandboxes from Yokohama to Zurich.

    How to use this page

    To help you prepare for your upgrade, we have combined the cross-family Developer Sandboxes release notes onto one page. Read this summary of the new features, changes, and updated information for your product from Yokohama to Zurich.

    Tip:
    If there were no updates for a release notes section in a certain family release, we included a short note for your reference. For example, if a product did not have any updates in Tokyo, the row says "No updates for this release."

    Important information for upgrading Developer Sandboxes to Zurich

    Before you upgrade to Zurich, review these pre- and post-upgrade tasks and complete the tasks as needed.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    New features

    Between your current release family and Zurich, new features were introduced for Developer Sandboxes.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich
    Explore
    View the total, available, and allocated sandboxes in your instance by using the Sandbox Management home dashboard. The dashboard also displays information about each sandbox, including the status, data utilization, owner, when the sandbox was last accessed, and when the sandbox was allocated.
    Create a sandbox template
    Enable your delegated developers to reuse the data so that they can test their changes without manually inputting the data every time.
    Create a Data Generation Profile
    Enable your customers to generate the data for testing within the context of developer sandboxes, but also independently of sandboxes.
    Note:
    Developer Sandboxes can't copy all the instance data. Data generation profiles enable a statistical sampling of data from selected tables with curated mappings to populate the sandbox with the data needed for building an application.
    Allocate a sandbox
    Allocate the sandboxes that were created to your development teams.
    Retire sandboxes
    Retire outdated sandboxes to make room for the new sandboxes in your instance.
    Automatically backed up update sets
    If you install Developer Sandboxes on an instance after Zurich Patch 5, update sets are automatically backed up when the instance is upgraded.

    Changes

    Between your current release family and Zurich, some changes were made to existing Developer Sandboxes features.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Removed

    Between your current release family and Zurich, some Developer Sandboxes features or functionality were removed.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Deprecations

    Between your current release family and Zurich, some Developer Sandboxes features or functionality were deprecated.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Activation information

    Review information on how to activate Developer Sandboxes.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    Contact your ServiceNow account manager to install Developer Sandboxes.

    Additional requirements

    If any additional requirements were introduced or changed for Developer Sandboxes we have noted them here.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Browser requirements

    If any specific browser requirements were introduced or changed for Developer Sandboxes we have noted them here.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Accessibility information

    Review details on accessibility information for Developer Sandboxes, such as specific requirements or compliance levels.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Localization information

    If there are specific localization considerations for Developer Sandboxes we have noted them here.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Highlight information

    If there are specific highlight considerations for Developer Sandboxes we have noted them here.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich
    • Enable your administrators and delegated developers to request, access, and manage the isolated development environments on top of the same underlying development instance.
    • Provide developer isolation and parallelism for customer development environments and instances.
    • View the total, available, and allocated sandboxes in your instance by using the Sandbox Management home dashboard. The dashboard also displays information about each sandbox, including the status, data utilization, owner, when it was last accessed, and when the sandbox was allocated.

    See Developer Sandboxes for more information.