What restriction is placed on resources marked as 'Active'?

Resources marked as 'Active' are intended for stable and reliable use within the system. The key restriction associated with these resources is that major breaking changes cannot be made to them. This policy helps to ensure that users relying on active resources can trust that their functionality and interfaces will remain consistent. Changes to resources flagged as 'Active' must be carefully considered and generally require a more rigorous change management process to prevent disruption to users and systems utilizing those resources.

The other options do not align with the nature of 'Active' resources. For instance, while deleting resources without warning would typically apply more to non-active resources to avoid unnecessary warnings or prompts, major changes would pose a risk to system integrity if performed on active resources. Additionally, active resources are visible to users as they are functional items used in applications, and they are not restricted to testing purposes; rather, they serve as reliable components in a production environment.