.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.

More available at: https://learn.microsoft.com/en-us/dotnet/aspire/whats-new/preview-7