I need to build a project using .NET 4.7.1, but the only option I see is .NET 4.7. Are there newer templates for .NET 4.7.1 I need to download, or do I just use the .NET 4.7 templates?

The v5.3.4 hotfix build currently available has .net 4.7.1 added as supported platform, but really nothing changed, so just use 4.7 and in visual studio or other IDE, just change the target platform to .net 4.7.1 and rebuild. The code generator won't overwrite csproj /vbproj files, it will just change the files referenced.

If I change the target platform (from 4.5.2 to 4.7), I no longer see my custom template bindings on the template bindings tab. How do I 'assign' the template bindings to new target platform?

At the Template Binding Viewer, pick your template binding and click "Edit". At the edit page, you can select all applicable "platforms", from the platforms drop down menu.

That did it. Thanks.