When runtimeConfig is _not_ specified, the default behavior is still not using the latest runtime crate versions on crates.io

[david-perez]

After #1635, we made it so that if the runtimeConfig key is specified, you now don't need to specify version: "DEFAULT" to make the code generated crate depend on the runtime crates on crates.io. Instead, now users have more flexibility: by default it will use the latest crates on crates.io, but they can also use the versions (note the plural) key to specify an explicit version for a runtime crate, or a path dependency.

However, if the runtimeConfig key is not specified, then we go through the else branch here

https://github.com/awslabs/smithy-rs/blob/30d985ad9d39849bb40705d244413eae2764ba7f/codegen/src/main/kotlin/software/amazon/smithy/rust/codegen/smithy/RuntimeTypes.kt#L92-L78

and RuntimeCrateLocation is thus set to RuntimeCrateLocation.Path("../"), a path dependency. So the default behavior is still not using the latest runtime crate versions on crates.io in this case.

[82marbag]

Can this be closed?

[david-perez]

Yes. Closing.