Merge smithy-rs-release-1.x.y into main (#4320)

Author: aws-sdk-rust-ci

.changelog/1757712519.md

@@ -1,4 +1,26 @@
 <!-- Do not manually edit this file. Use the `changelogger` tool. -->
+October 1st, 2025
+=================
+**New this release:**
+- :tada: (client, [smithy-rs#4299](https://github.com/smithy-lang/smithy-rs/issues/4299), @greenwoodcm) Added a new `then_compute_output` to `aws-smithy-mocks` rule builder that allows using the input type when computing a mocked response, e.g. 
+    ```rs
+    // Return a computed output based on the input
+    let compute_rule = mock!(Client::get_object)
+        .then_compute_output(|req| {
+            let key = req.key().unwrap_or("unknown");
+            GetObjectOutput::builder()
+                .body(ByteStream::from_static(format!("content for {}", key).as_bytes()))
+                .build()
+        });
+    ```
+- :bug: (client, [smithy-rs#4226](https://github.com/smithy-lang/smithy-rs/issues/4226), @haydenbaker) Fixed problematic assertion on HttpApiKeyAuthTrait `scheme`, which was causing client-codegen to fail when the correct settings for api-key based auth were set.
+
+**Contributors**
+Thank you for your contributions! ❤
+- @greenwoodcm ([smithy-rs#4299](https://github.com/smithy-lang/smithy-rs/issues/4299))
+- @haydenbaker ([smithy-rs#4226](https://github.com/smithy-lang/smithy-rs/issues/4226))
+
+
 September 10th, 2025
 ====================
 **New this release:**

.changelog/1758067735.md

@@ -5,34 +5,6 @@
 {
   "smithy-rs": [],
   "aws-sdk-rust": [
-    {
-      "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",
-      "meta": {
-        "bug": false,
-        "breaking": false,
-        "tada": true
-      },
-      "author": "landonxjames",
-      "references": [
-        "smithy-rs#4208"
-      ],
-      "since-commit": "fd54b8282920c862db4604f620ab188ec4a235b9",
-      "age": 5
-    },
-    {
-      "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",
-      "meta": {
-        "bug": false,
-        "breaking": false,
-        "tada": true
-      },
-      "author": "joshtriplett",
-      "references": [
-        "smithy-rs#4208"
-      ],
-      "since-commit": "fd54b8282920c862db4604f620ab188ec4a235b9",
-      "age": 5
-    },
     {
       "message": "pin crc-fast to <1.4 to workaround SIGILL\n",
       "meta": {
@@ -43,7 +15,7 @@
       "author": "aajtodd",
       "references": [],
       "since-commit": "01aece8b664968ac63354e52b88915e8f8546738",
-      "age": 4
+      "age": 5
     },
     {
       "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",
@@ -57,7 +29,7 @@
         "aws-sdk-rust#169"
       ],
       "since-commit": "520d073c2d739e95d112842be13c924097155d47",
-      "age": 3
+      "age": 4
     },
     {
       "message": "Enable rustls post-quantum by default.\n",
@@ -69,7 +41,7 @@
       "author": "WillChilds-Klein",
       "references": [],
       "since-commit": "520d073c2d739e95d112842be13c924097155d47",
-      "age": 3
+      "age": 4
     },
     {
       "message": "fix `aws-smithy-eventstream` feature `derive-arbitrary` on `arbitrary` >= 1.4.2\n",
@@ -81,7 +53,7 @@
       "author": "aajtodd",
       "references": [],
       "since-commit": "520d073c2d739e95d112842be13c924097155d47",
-      "age": 3
+      "age": 4
     },
     {
       "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",
@@ -95,7 +67,7 @@
         "smithy-rs#4263"
       ],
       "since-commit": "f18c70d36c40fa0f40860547394c134566704e69",
-      "age": 2
+      "age": 3
     }
   ],
   "aws-sdk-model": []