Heroku has officially announced robust production support for .NET 10 LTS (Long Term Support), marking a significant update for developers building and deploying .NET applications on its cloud platform. This move aligns Heroku with Microsoft's latest major release, offering developers stability and extended support timelines crucial for enterprise applications.

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The key components now fully supported include:
* ASP.NET Core 10: For building modern web APIs and applications.
* Entity Framework Core 10: Providing the latest ORM capabilities for database interactions.
* Blazor (Server and WebAssembly): Enabling full-stack C# development for interactive web UIs.

What's New & Improved for .NET Developers:
1. Updated .NET Buildpack: The Heroku .NET buildpack has been overhauled to seamlessly detect and build projects targeting net10.0. This automates dependency resolution and build processes specific to the new runtime.
2. Enhanced Azure AD Integration: Streamlining authentication setup for applications leveraging Microsoft Identity Platform. Configuring secure connections to Azure Active Directory is now more straightforward.
3. Performance Optimizations: Underlying platform optimizations aim to reduce cold start times for .NET 10 applications and improve overall runtime performance, particularly noticeable in containerized environments.
4. Migration Path: Heroku provides clear guidance for developers migrating applications from .NET 6 LTS or .NET 8 (non-LTS) to .NET 10 LTS, emphasizing compatibility checks and deployment workflow updates.

Why This Matters:
For developers invested in the .NET ecosystem, Heroku's swift support for .NET 10 LTS eliminates deployment friction. Leveraging LTS means access to critical security patches and updates for three years, making Heroku a more viable and reliable platform for mission-critical .NET applications requiring long-term stability. The enhanced Azure AD integration is particularly valuable for enterprises deeply embedded in the Microsoft cloud ecosystem.

Getting Started:
Developers can target .NET 10 LTS immediately. Specifying the runtime in the project file (<TargetFramework>net10.0</TargetFramework>) and ensuring the latest Heroku CLI and .NET buildpack are in use is typically sufficient:

heroku buildpacks:set heroku/dotnet

Heroku's documentation details specific configurations for Entity Framework Core migrations and Blazor deployment models. This commitment to supporting the latest .NET LTS release underscores Heroku's focus on providing a modern, developer-friendly platform for the .NET community, enabling faster deployment cycles and access to the latest framework innovations without sacrificing stability.