Visual Studio DevOps, now known as Azure DevOps, is a set of development tools and services provided by Microsoft to help teams plan, develop, test, deliver, and monitor software applications efficiently. It covers the entire software development lifecycle, from project planning and version control to build automation and deployment.

Azure DevOps provides a variety of features and services, including:

1. Azure Boards: A project management tool that helps teams plan, track, and manage work items and tasks using agile methodologies like Scrum or Kanban.

2. Azure Repos: A version control system that supports Git or Team Foundation Version Control (TFVC), allowing teams to manage and track source code changes.

3. Azure Pipelines: A continuous integration and continuous delivery (CI/CD) platform that automates building, testing, and deploying applications across various platforms and environments.

4. Azure Artifacts: A package management system that enables teams to create, publish, and share packages (such as NuGet, npm, Maven) within their organization.

5. Azure Test Plans: A comprehensive testing tool for planning, tracking, and managing manual and exploratory testing efforts. It also integrates with automated testing frameworks.

6. Azure DevTest Labs: A service that allows you to create and manage environments in the cloud for testing and development purposes.

7. Azure Monitor: Provides monitoring and analytics capabilities, allowing you to monitor application performance, detect issues, and gain insights into your application’s health.

8. Azure Repos: A version control service that supports Git repositories for source code management.

9. Azure DevOps Server: A self-hosted version of Azure DevOps for organizations that need to manage their DevOps tools on-premises.

Azure DevOps aims to enhance collaboration among development, operations, and testing teams by providing a unified platform for managing the entire software delivery process. Teams can automate workflows, ensure code quality through automated testing, and deploy applications more reliably using CI/CD pipelines.