Allows customers to configure the auth schemes and auth scheme resolver. For more information see the GitHub [discussion](https://github.com/smithy-lang/smithy-rs/discussions/4197).
<!-- Do not manually edit this file. Use the `changelogger` tool. -->
July 8th, 2025
==============
**New this release:**
- (client, [smithy-rs#4076](https://github.com/smithy-lang/smithy-rs/issues/4076), [smithy-rs#4198](https://github.com/smithy-lang/smithy-rs/issues/4198)) Allows customers to configure the auth schemes and auth scheme resolver. For more information see the GitHub [discussion](https://github.com/smithy-lang/smithy-rs/discussions/4197).
"message":"Removing the `optimize_crc32_auto` feature flag from the `crc-fast` dependency of the `aws-smithy-checksums` crate since it was causing build issues for some customers.\n",
"message":"Introduce a new `repeatedly()` function to `aws-smithy-mocks` sequence builder to build mock rules that behave as an\ninfinite sequence.\n\n```rust\nlet rule = mock!(aws_sdk_s3::Client::get_object)\n .sequence()\n .http_status(503, None)\n .times(2) // repeat the last output twice before moving onto the next response in the sequence\n .output(|| GetObjectOutput::builder()\n .body(ByteStream::from_static(b\"success\"))\n .build()\n )\n .repeatedly() // repeat the last output forever\n .build();\n```\n",
"message":"Allows customers to configure the auth schemes and auth scheme resolver. For more information see the GitHub [discussion](https://github.com/smithy-lang/smithy-rs/discussions/4197).\n",