Pulumi has announced the preview of .NET Core support, allowing developers to create, deploy, and manage infrastructure using .NET languages such as C#, F#, and VB.NET across any cloud platform. This development marks a significant milestone for the Pulumi team, many of whom were instrumental in the early development of the .NET project and its transition to open source, including support for macOS and Linux. The .NET support and its libraries are open source on GitHub, aligning with Pulumi's commitment to open-source development. The preview release aims to gather user feedback to refine the offering, and Pulumi invites developers to participate in discussions on their Community Slack.