Deploy .NET 10 apps on Heroku with day-one support. Learn about the new LTS release , file-based apps , and SLNX solutions.

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.NET 10 LTS is now available on Heroku with day-one support. The release introduces file-based apps that enable zero-config deployment from a single C# file, and SLNX solution files as the new default format. Heroku's buildpack automatically detects and deploys .NET 10 applications, supports both legacy .sln and new .slnx formats, and integrates with the Microsoft Testing Platform for CI workflows. Previous versions (.NET 8 and 9) will reach end of support in November 2026, making this an ideal time to migrate to the three-year LTS release.

Heroku Support for .NET 10 LTS: What Developers Need to Know

Zero-config deployment with .NET 10 file-based apps

SLNX: A modern solution for a modern .NET

Heroku CI and the Microsoft Testing Platform