BREAKING: Region-related classes package restructuring

[xinsong-cui]

An upcoming release of the AWS SDK for Kotlin will move several region-related classes into different namespaces and modules as part of an internal refactoring. This change was necessary to support adding regionProvider client config property, see #1478 for more details.

Release date

This change will be included in the upcoming v1.5.0 release.

What's changing

The RegionProvider and RegionProviderChain classes are now available from different modules than before. This will affect your build if you're using these classes.

How to migrate

1. Update build dependencies

If your code uses region-related classes, you may need to add a new dependency in your build.gradle.kts:

implementation("aws.smithy.kotlin:smithy-client:<version>")

2. Update import statements

After updating the dependencies, you'll need to modify your import statements:

Replace these imports:

import aws.sdk.kotlin.runtime.region.RegionProvider
import aws.sdk.kotlin.runtime.region.RegionProviderChain

With:

import aws.smithy.kotlin.runtime.client.region.RegionProvider
import aws.smithy.kotlin.runtime.client.region.RegionProviderChain

No changes to your existing implementation code are required beyond updating the dependencies and imports. Your code should continue to function as before once the dependencies and imports are updated.

Additional information

For more information about this change, see #1478.

Feedback

If you have any questions concerning this change, please feel free to engage
with us in this discussion. If you encounter a bug with these changes when
released, please file an issue.