UI integration cards are a way to display information and application content from different backend systems in a unified and consistent way in SAP Build Work Zone. They can support operations on the UI, such as choosing the card header or a button, and they can call multiple backend systems using destinations. Destinations are a way to connect to external services or applications using a simple name. They must be maintained at the SAP BTP subaccount level and have the HTMLS.ForwardAuth Token property set to true. This property enables the SAP Build Work Zone to forward the authentication token to the destination service. UI integration cards cannot only consume business data from SAP systems, but also from non-SAP systems, as long as they are accessible via destinations.
For more information about UI integration cards, you can refer to the following resources:
UI Integration Cards | SAP Help Portal1
Direct Deployment of UI Integration Cards to SAP Work Zone | SAP Blogs2 Developing UI Integration Cards | SAP Help Portal3 SAP Build Work Zone, advanced edition - SAP Online Help4

Knowledge base articles can be created in the workspaces Knowledge Base feature, which is enabled by the workspace administrator. The workspace has a Knowledge Base page that displays the knowledge base articles created in the workspace and where users can create knowledge base articles. Users can select a template, insert images, links, and videos, assign a category, and set permissions and publish settings for the knowledge base articles. Users can also view, edit, tag, like, bookmark, and comment on the published knowledge base articles. Reference:
SAP Build Work Zone, advanced edition | SAP Help Portal, section "Knowledge Base" SAP Build Work Zone, advanced edition - SAP Online Help, section "Creating, Publishing and Editing Knowledge Base Articles"

The SAP Cloud Transport Management service integration allows you to transport various content artifacts between subaccounts, such as UI integration cards, applications, and workpages. UI integration cards are reusable user interface elements that display data from different sources in a consistent way. Applications are software solutions that run on SAP Business Technology Platform and provide specific functionality for users. Workpages are collections of UI integration cards that can be arranged in different layouts and accessed from the SAP Build Work Zone home page. Workspaces are not content artifacts that can be transported using the SAP Cloud Transport Management service integration, but rather logical containers that group related content artifacts and provide collaboration features for users. Reference:
UI integration cards: [UI Integration Cards]
Applications: [Applications]
Workpages: [Workpages]
Workspaces: [Workspaces]

Guided experiences are workflow-based cards that help you perform specific tasks through a multistep process possibly spanning multiple systems. For example, you can use the Onboarding Guided Experience to provide a personalized journey for your new hires from the time they receive an offer letter to their first 90 days at your company. You can also use the Return to Workplace Guided Experience to plan a safe return to the workplace for your company employees. Reference:
Guided Experiences | SAP Help Portal
Illustrating Extensibility in SAP Build Work Zone

Content package versioning is a feature that allows you to manage the updates of content packages in SAP Build Work Zone. Content packages have three types of versions: major, minor, and patch. Each version has a different impact on the existing content items and configurations. You can choose how you want to update your content packages based on the version type. The available options are:
Automatic update only for patch versions: This option will automatically update your content packages whenever there is a new patch version available. Patch versions are the least disruptive updates that usually fix bugs or improve performance. You will still need to manually update your content packages for major and minor versions.
Manual update for all versions: This option will give you full control over when and how you want to update your content packages. You will need to manually update your content packages for all types of versions: major, minor, and patch. This option is recommended if you have customized your content packages extensively and want to avoid any potential conflicts or errors.
Automatic update for all versions: This option will automatically update your content packages whenever there is a new version available, regardless of the version type. This option is recommended if you want to always have the latest features and enhancements of your content packages. However, this option may also cause some issues or changes in your existing content items and configurations, especially for major and minor versions.
The option that is NOT available for content package versioning is manual update only for minor versions. This option does not make sense because minor versions are more significant updates than patch versions, and they may introduce new features or change existing functionalities. Therefore, it would be illogical to update only minor versions manually and leave patch versions to be updated automatically. Reference:
Content Package Versioning