.NET Aspire preview 7 wasn't part of the original plan, but as a developer, you might appreciate being able to react quickly to changes in a quickly evolving development ecosystem. This preview has a lot of breaking API changes, partly due to the fact that once the product is released, we'll be committed to a stable API surface. Suffice it to say, the team was eager to ensure that they got these API changes in place before the final release.
.NET Aspire preview 6 is now available and introduces changes that improve the security and reliability of .NET Aspire. The following article provides an overview of the major changes in .NET Aspire preview 6: 8.0.0-preview.6.24214.1.
Official Samples for .NET Aspire with source code.
The official FAQ from the .NET Aspire team, listing the frequently asked questions about .NET Aspire and their answers