Azure DevOps Services, which is a cloud-based platform for DevOps practices, is primarily a cloud-hosted service provided by Microsoft. However, for organizations that require on-premises solutions due to specific compliance, data sovereignty, or security requirements, Microsoft offers an on-premises version known as “Azure DevOps Server.”

Azure DevOps Server was formerly known as “Team Foundation Server (TFS)” before it was rebranded to align with the Azure DevOps suite of services. Azure DevOps Server provides similar capabilities to Azure DevOps Services but is installed and managed on your own infrastructure.

Key features of Azure DevOps Server (on-premises) include:

1. Version Control: Azure DevOps Server supports both Git and Team Foundation Version Control (TFVC) for managing source code.

2. Work Item Tracking: It includes tools for project management, work item tracking, and agile planning, similar to Azure Boards.

3. Build and Release: You can set up continuous integration and continuous deployment (CI/CD) pipelines using Azure DevOps Server, similar to Azure Pipelines.

4. Package Management: Azure DevOps Server offers package management capabilities similar to Azure Artifacts for hosting and sharing packages within your organization.

5. Testing: It provides test case management and execution features, similar to Azure Test Plans.

6. Reports and Analytics: Azure DevOps Server includes reporting and analytics features for tracking project progress and performance.

7. Integration: Azure DevOps Server can be integrated with various development tools and services, just like Azure DevOps Services.

8. Customization and Extensions: You can customize and extend Azure DevOps Server to meet your specific requirements by developing extensions and integrating third-party tools.