Azure DevOps was released in 2005 developed by Microsoft. Azure DevOps is renamed from Visual Studio Team Services(VSTS) in 2015 after updating VSTS. Azure DevOps supports only on the Microsoft Windows Operating system. The latest version Azure DevOps server is Azure DevOps Server 2019.0.1 Patch 1 which was released on July 9, 2019.
In case you are interested to learn Azure DevOps, I recommend you enroll in Azure DevOps Training by Intellipaat.
You can watch this video on Azure DevOps by Intellipaat to have a quick start to Azure DevOps: