Please clarify backward compatibility

I looked here to find out if we need to install the Hosting Bundle for all frameworks currently in use, or just the runtime and only the latest hosting bundle (meaning the hosting bundle is backward compatible).

I didn't find the answer here, but would appreciate clarification on this. Thanks!

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#### Document Details

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* ID: 65973393-2cb9-a656-01b8-7963a7a40b39
* Version Independent ID: 22e2323b-18c3-ad2b-174c-84fbf642715e
* Content: [Hosting Bundle](https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/hosting-bundle?view=aspnetcore-6.0)
* Content Source: [aspnetcore/host-and-deploy/iis/hosting-bundle.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/host-and-deploy/iis/hosting-bundle.md)
* Product: **aspnet-core**
* Technology: **aspnetcore-hostdeploy**
* GitHub Login: @Rick-Anderson
* Microsoft Alias: **riande**