Merge smithy-rs-release-1.x.y into main (#4285)

Author: aws-sdk-rust-ci

.changelog/1755104778.md

@@ -1,4 +1,12 @@
 <!-- Do not manually edit this file. Use the `changelogger` tool. -->
+August 28th, 2025
+=================
+**New this release:**
+- :tada: (client, [smithy-rs#4274](https://github.com/smithy-lang/smithy-rs/issues/4274)) Add a new crate, `aws-smithy-dns` that contains a `HickoryDnsResolver`. This wraps a `hickory_resolver::Resolver` and provides some minimal configuration options (timeouts, retries, etc.) Instructions for overriding the DNS resolver on your HTTP client can be found in our documentation at https://docs.aws.amazon.com/sdk-for-rust/latest/dg/http.html#overrideDns
+- :bug: (client, [smithy-rs#4282](https://github.com/smithy-lang/smithy-rs/issues/4282)) Set the `pool_timer` for the default Hyper client. This is required to allow the `pool_idle_timeout` to work. Now idle connections will be released by the pool after 90 seconds.
+- (client, [smithy-rs#4263](https://github.com/smithy-lang/smithy-rs/issues/4263)) Make [`TokenBucket`](https://docs.rs/aws-smithy-runtime/latest/aws_smithy_runtime/client/retries/struct.TokenBucket.html) and [`ClientRateLimiter`](https://docs.rs/aws-smithy-runtime/latest/aws_smithy_runtime/client/retries/struct.ClientRateLimiter.html) configurable through [`RetryPartition`](https://docs.rs/aws-smithy-runtime/latest/aws_smithy_runtime/client/retries/struct.RetryPartition.html).
+
+
 August 18th, 2025
 =================
 **New this release:**

.changelog/caching-dns-resolver.md

@@ -5,20 +5,6 @@
 {
   "smithy-rs": [],
   "aws-sdk-rust": [
-    {
-      "message": "Add fallback equality on no auth `AuthSchemeId` for backward compatibility, treating `AuthSchemeId::from(\"no_auth\")` (legacy) and `AuthSchemeId::from(\"noAuth\")` (updated) as equivalent.\n",
-      "meta": {
-        "bug": true,
-        "breaking": false,
-        "tada": false
-      },
-      "author": "ysaito1001",
-      "references": [
-        "smithy-rs#4232"
-      ],
-      "since-commit": "a2a7d7aa371ed8d9af191f4220b6c8ddebcb2ce0",
-      "age": 5
-    },
     {
       "message": "Fix canonical request sort order\n",
       "meta": {
@@ -31,7 +17,7 @@
         "smithy-rs#4227"
       ],
       "since-commit": "ca76037be5edef991257dc7d1d8425c859468d5a",
-      "age": 4
+      "age": 5
     },
     {
       "message": "Add support for environment token provider for AWS services whose SigV4 service signing name matches `bedrock`. Setting this environment variable, `AWS_BEARER_TOKEN_BEDROCK`, allows SDKs to prefer the `httpBearerAuth` auth scheme and to retrieve a Token value from the said environment. Customers would use the environment variable as follows:\n```\n// export AWS_BEARER_TOKEN_BEDROCK=my-token\nlet sdk_config = aws_config::defaults(BehaviorVersion::latest()).load().await;\nlet bedrock_client = aws_sdk_bedrock::Client::new(&sdk_config);\n// call an operation on `bedrock_client`...\n```\nUnder the hood, this is equivalent roughly to\n```\nlet sdk_config = aws_config::defaults(BehaviorVersion::latest()).load().await;\nlet bedrock_config = aws_sdk_bedrock::config::Builder::from(sdk_config)\n    .auth_scheme_preference([HTTP_BEARER_AUTH_SCHEME_ID])\n    .token_provider(Token::new(\"my-token\", None))\n    .build();\nlet bedrock_client = aws_sdk_bedrock::Client::from_conf(bedrock_config);\n// call an operation on `bedrock_client`...\n```\nHowever, note that if customers create the service client directly from the service config builder, the environment variable will not be applied:\n```\n// export AWS_BEARER_TOKEN_BEDROCK=my-token\nlet bedrock_config = aws_sdk_bedrock::Config::builder()\n    // other configurations\n    .build();\nlet bedrock_client = aws_sdk_bedrock::Client::from_conf(bedrock_config);\n// `bedrock_client` neither prefers HTTP_BEARER_AUTH_SCHEME_ID nor sets a Token with my-token.\n```\n",
@@ -45,7 +31,7 @@
         "smithy-rs#4241"
       ],
       "since-commit": "ca76037be5edef991257dc7d1d8425c859468d5a",
-      "age": 4
+      "age": 5
     },
     {
       "message": "Add user-agent feature tracking for credential providers in `aws-config`.\n",
@@ -59,7 +45,7 @@
         "smithy-rs#4238"
       ],
       "since-commit": "ca76037be5edef991257dc7d1d8425c859468d5a",
-      "age": 4
+      "age": 5
     },
     {
       "message": "Add the ability to insert `hints.mostly-unused = true` in Cargo.toml. Enable this hint for the below crates:\n- aws-sdk-cloudformation\n- aws-sdk-dynamodb\n- aws-sdk-ec2\n- aws-sdk-s3\n- aws-sdk-sns\n- aws-sdk-sqs\n- aws-sdk-ssm\n- aws-sdk-sts\n\nSee more information about this hint at https://blog.rust-lang.org/inside-rust/2025/07/15/call-for-testing-hint-mostly-unused/\n",
@@ -73,7 +59,7 @@
         "smithy-rs#4208"
       ],
       "since-commit": "fd54b8282920c862db4604f620ab188ec4a235b9",
-      "age": 3
+      "age": 4
     },
     {
       "message": "Enable `hints.mostly-unused = true` for `aws-sdk-lambda` (taking a release\nbuild from 57s to 40s) and `aws-sdk-rds` (taking a release build from 1m34s to\n49s).\n",
@@ -87,7 +73,7 @@
         "smithy-rs#4208"
       ],
       "since-commit": "fd54b8282920c862db4604f620ab188ec4a235b9",
-      "age": 3
+      "age": 4
     },
     {
       "message": "pin crc-fast to <1.4 to workaround SIGILL\n",
@@ -99,7 +85,7 @@
       "author": "aajtodd",
       "references": [],
       "since-commit": "01aece8b664968ac63354e52b88915e8f8546738",
-      "age": 2
+      "age": 3
     },
     {
       "message": "Add support for proxy environment variables (`HTTP_PROXY, `HTTPS_PROXY`, `ALL_PROXY`, `NO_PROXY`). Service clients will now automatically respect these proxy environment variables on the latest `BehaviorVersion`. Older behavior versions do not automatically detect these environment variables and will require manually building a `aws_smithy_http_client::Connector` with a proxy config explicitly set to use this feature.\n",
@@ -113,7 +99,7 @@
         "aws-sdk-rust#169"
       ],
       "since-commit": "520d073c2d739e95d112842be13c924097155d47",
-      "age": 1
+      "age": 2
     },
     {
       "message": "Enable rustls post-quantum by default.\n",
@@ -125,7 +111,7 @@
       "author": "WillChilds-Klein",
       "references": [],
       "since-commit": "520d073c2d739e95d112842be13c924097155d47",
-      "age": 1
+      "age": 2
     },
     {
       "message": "fix `aws-smithy-eventstream` feature `derive-arbitrary` on `arbitrary` >= 1.4.2\n",
@@ -137,6 +123,20 @@
       "author": "aajtodd",
       "references": [],
       "since-commit": "520d073c2d739e95d112842be13c924097155d47",
+      "age": 2
+    },
+    {
+      "message": "Make [`TokenBucket`](https://docs.rs/aws-smithy-runtime/latest/aws_smithy_runtime/client/retries/struct.TokenBucket.html) and [`ClientRateLimiter`](https://docs.rs/aws-smithy-runtime/latest/aws_smithy_runtime/client/retries/struct.ClientRateLimiter.html) configurable through [`RetryPartition`](https://docs.rs/aws-smithy-runtime/latest/aws_smithy_runtime/client/retries/struct.RetryPartition.html).\n",
+      "meta": {
+        "bug": false,
+        "breaking": false,
+        "tada": false
+      },
+      "author": "ysaito1001",
+      "references": [
+        "smithy-rs#4263"
+      ],
+      "since-commit": "f18c70d36c40fa0f40860547394c134566704e69",
       "age": 1
     }
   ],