With the introduction of Azure DevOps, we’re offering developers a new Git service called Azure Repos. It has unlimited free private repositories with collaborative code reviews, advanced file management, code search, and branch policies to ensure high quality code. Azure Repos is great for small projects as well as large organizations that need native AAD support and advanced policies.
Code reviews are one of the best ways to improve the overall quality of your code base and increase shared knowledge across your team. Discussions are the heart of the pull request experience. You can leave comments right in the code and give it some flare with markdown and emoji.
Read about it in the Azure blog.