diff --git a/aws/rust-runtime/Cargo.lock b/aws/rust-runtime/Cargo.lock
index 5841caf232..0eaa3e5a74 100644
--- a/aws/rust-runtime/Cargo.lock
+++ b/aws/rust-runtime/Cargo.lock
@@ -138,7 +138,7 @@ dependencies = [
 
 [[package]]
 name = "aws-runtime"
-version = "1.5.1"
+version = "1.5.2"
 dependencies = [
  "arbitrary",
  "aws-credential-types",
@@ -220,7 +220,7 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-async"
-version = "1.2.2"
+version = "1.2.3"
 dependencies = [
  "futures-util",
  "pin-project-lite",
@@ -292,7 +292,7 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-runtime"
-version = "1.7.5"
+version = "1.7.6"
 dependencies = [
  "aws-smithy-async",
  "aws-smithy-http",
@@ -332,7 +332,7 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-types"
-version = "1.2.10"
+version = "1.2.11"
 dependencies = [
  "base64-simd",
  "bytes",
diff --git a/aws/rust-runtime/aws-config/Cargo.lock b/aws/rust-runtime/aws-config/Cargo.lock
index f31a921e10..2723f5bc73 100644
--- a/aws/rust-runtime/aws-config/Cargo.lock
+++ b/aws/rust-runtime/aws-config/Cargo.lock
@@ -89,7 +89,7 @@ dependencies = [
 
 [[package]]
 name = "aws-runtime"
-version = "1.5.1"
+version = "1.5.0"
 dependencies = [
  "aws-credential-types",
  "aws-sigv4",
@@ -195,7 +195,7 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-async"
-version = "1.2.2"
+version = "1.2.1"
 dependencies = [
  "futures-util",
  "pin-project-lite",
diff --git a/aws/rust-runtime/aws-runtime/Cargo.toml b/aws/rust-runtime/aws-runtime/Cargo.toml
index a9117d34f9..f9ac90dcf8 100644
--- a/aws/rust-runtime/aws-runtime/Cargo.toml
+++ b/aws/rust-runtime/aws-runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aws-runtime"
-version = "1.5.1"
+version = "1.5.2"
 authors = ["AWS Rust SDK Team <aws-sdk-rust@amazon.com>"]
 description = "Runtime support code for the AWS SDK. This crate isn't intended to be used directly."
 edition = "2021"
diff --git a/aws/rust-runtime/aws-runtime/src/user_agent/metrics.rs b/aws/rust-runtime/aws-runtime/src/user_agent/metrics.rs
index be10fe7be4..c667bc7645 100644
--- a/aws/rust-runtime/aws-runtime/src/user_agent/metrics.rs
+++ b/aws/rust-runtime/aws-runtime/src/user_agent/metrics.rs
@@ -127,7 +127,16 @@ iterable_enum!(
     AccountIdModeDisabled,
     AccountIdModeRequired,
     Sigv4aSigning,
-    ResolvedAccountId
+    ResolvedAccountId,
+    FlexibleChecksumsReqCrc32,
+    FlexibleChecksumsReqCrc32c,
+    FlexibleChecksumsReqCrc64,
+    FlexibleChecksumsReqSha1,
+    FlexibleChecksumsReqSha256,
+    FlexibleChecksumsReqWhenSupported,
+    FlexibleChecksumsReqWhenRequired,
+    FlexibleChecksumsResWhenSupported,
+    FlexibleChecksumsResWhenRequired
 );
 
 pub(crate) trait ProvideBusinessMetric {
@@ -142,6 +151,25 @@ impl ProvideBusinessMetric for SmithySdkFeature {
             Paginator => Some(BusinessMetric::Paginator),
             GzipRequestCompression => Some(BusinessMetric::GzipRequestCompression),
             ProtocolRpcV2Cbor => Some(BusinessMetric::ProtocolRpcV2Cbor),
+            RetryModeStandard => Some(BusinessMetric::RetryModeStandard),
+            RetryModeAdaptive => Some(BusinessMetric::RetryModeAdaptive),
+            FlexibleChecksumsReqCrc32 => Some(BusinessMetric::FlexibleChecksumsReqCrc32),
+            FlexibleChecksumsReqCrc32c => Some(BusinessMetric::FlexibleChecksumsReqCrc32c),
+            FlexibleChecksumsReqCrc64 => Some(BusinessMetric::FlexibleChecksumsReqCrc64),
+            FlexibleChecksumsReqSha1 => Some(BusinessMetric::FlexibleChecksumsReqSha1),
+            FlexibleChecksumsReqSha256 => Some(BusinessMetric::FlexibleChecksumsReqSha256),
+            FlexibleChecksumsReqWhenSupported => {
+                Some(BusinessMetric::FlexibleChecksumsReqWhenSupported)
+            }
+            FlexibleChecksumsReqWhenRequired => {
+                Some(BusinessMetric::FlexibleChecksumsReqWhenRequired)
+            }
+            FlexibleChecksumsResWhenSupported => {
+                Some(BusinessMetric::FlexibleChecksumsResWhenSupported)
+            }
+            FlexibleChecksumsResWhenRequired => {
+                Some(BusinessMetric::FlexibleChecksumsResWhenRequired)
+            }
             otherwise => {
                 // This may occur if a customer upgrades only the `aws-smithy-runtime-api` crate
                 // while continuing to use an outdated version of an SDK crate or the `aws-runtime`
@@ -260,7 +288,16 @@ mod tests {
   "ACCOUNT_ID_MODE_DISABLED": "Q",
   "ACCOUNT_ID_MODE_REQUIRED": "R",
   "SIGV4A_SIGNING": "S",
-  "RESOLVED_ACCOUNT_ID": "T"
+  "RESOLVED_ACCOUNT_ID": "T",
+  "FLEXIBLE_CHECKSUMS_REQ_CRC32" : "U",
+  "FLEXIBLE_CHECKSUMS_REQ_CRC32C" : "V",
+  "FLEXIBLE_CHECKSUMS_REQ_CRC64" : "W",
+  "FLEXIBLE_CHECKSUMS_REQ_SHA1" : "X",
+  "FLEXIBLE_CHECKSUMS_REQ_SHA256" : "Y",
+  "FLEXIBLE_CHECKSUMS_REQ_WHEN_SUPPORTED" : "Z",
+  "FLEXIBLE_CHECKSUMS_REQ_WHEN_REQUIRED" : "a",
+  "FLEXIBLE_CHECKSUMS_RES_WHEN_SUPPORTED" : "b",
+  "FLEXIBLE_CHECKSUMS_RES_WHEN_REQUIRED" : "c"
 }
         "#;
 
@@ -268,8 +305,9 @@ mod tests {
         assert_eq!(expected.len(), FEATURE_ID_TO_METRIC_VALUE.len());
 
         for (feature_id, metric_value) in &*FEATURE_ID_TO_METRIC_VALUE {
+            let expected = expected.get(format!("{feature_id}").as_str());
             assert_eq!(
-                expected.get(format!("{feature_id}").as_str()).unwrap(),
+                expected.expect(&format!("Expected {feature_id} to have value `{metric_value}` but it was `{expected:?}` instead.")),
                 metric_value,
             );
         }
diff --git a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/HttpRequestChecksumDecorator.kt b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/HttpRequestChecksumDecorator.kt
index 2794fc0295..da5c2ac7bf 100644
--- a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/HttpRequestChecksumDecorator.kt
+++ b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/HttpRequestChecksumDecorator.kt
@@ -39,6 +39,7 @@ internal fun RuntimeConfig.awsInlineableHttpRequestChecksum() =
             CargoDependency.smithyHttp(this),
             CargoDependency.smithyRuntimeApiClient(this),
             CargoDependency.smithyTypes(this),
+            CargoDependency.TempFile,
         ),
     )
 
diff --git a/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/UserAgentDecoratorTest.kt b/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/UserAgentDecoratorTest.kt
index dbc30c940f..78c93af19e 100644
--- a/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/UserAgentDecoratorTest.kt
+++ b/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/UserAgentDecoratorTest.kt
@@ -7,6 +7,7 @@ package software.amazon.smithy.rustsdk
 
 import org.junit.jupiter.api.Test
 import software.amazon.smithy.rust.codegen.core.rustlang.CargoDependency
+import software.amazon.smithy.rust.codegen.core.rustlang.rust
 import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
 import software.amazon.smithy.rust.codegen.core.smithy.RuntimeType
 import software.amazon.smithy.rust.codegen.core.smithy.RuntimeType.Companion.preludeScope
@@ -176,9 +177,7 @@ class UserAgentDecoratorTest {
                     val moduleName = ctx.moduleUseName()
                     rustTemplate(
                         """
-                        use $moduleName::config::{
-                            Region,
-                        };
+                        use $moduleName::config::Region;
                         use $moduleName::{Client, Config};
 
                         let (http_client, rcvr) = #{capture_request}(#{None});
@@ -197,7 +196,126 @@ class UserAgentDecoratorTest {
                         #{assert_ua_contains_metric_values}(user_agent, &["M"]);
                         """,
                         *preludeScope,
-                        "assert_ua_contains_metric_values" to AwsRuntimeType.awsRuntimeTestUtil(rc).resolve("user_agent::test_util::assert_ua_contains_metric_values"),
+                        "assert_ua_contains_metric_values" to
+                            AwsRuntimeType.awsRuntimeTestUtil(rc)
+                                .resolve("user_agent::test_util::assert_ua_contains_metric_values"),
+                        "capture_request" to RuntimeType.captureRequest(rc),
+                        "disable_interceptor" to
+                            RuntimeType.smithyRuntimeApiClient(rc)
+                                .resolve("client::interceptors::disable_interceptor"),
+                        "UserAgentInterceptor" to
+                            AwsRuntimeType.awsRuntime(rc)
+                                .resolve("user_agent::UserAgentInterceptor"),
+                    )
+                }
+            }
+        }
+    }
+
+    @Test
+    fun `it emits business metrics for retry modes`() {
+        val model =
+            """
+            namespace test
+
+            use aws.auth#sigv4
+            use aws.api#service
+            use aws.protocols#restJson1
+            use smithy.rules#endpointRuleSet
+
+            @auth([sigv4])
+            @sigv4(name: "dontcare")
+            @endpointRuleSet({
+                "version": "1.0",
+                "rules": [{ "type": "endpoint", "conditions": [], "endpoint": { "url": "https://example.com" } }],
+                "parameters": {}
+            })
+            @service(sdkId: "dontcare")
+            @restJson1
+            service TestService { version: "2023-01-01", operations: [SomeOperation] }
+
+            @http(uri: "/SomeOperation", method: "GET")
+            @optionalAuth
+            operation SomeOperation {
+                input: SomeInput,
+                output: SomeOutput
+            }
+
+            @input
+            structure SomeInput {}
+
+            @output
+            structure SomeOutput {}
+            """.asSmithyModel()
+
+        awsSdkIntegrationTest(model) { ctx, rustCrate ->
+            rustCrate.integrationTest("retry_mode_feature_tracker") {
+                val rc = ctx.runtimeConfig
+                val moduleName = ctx.moduleUseName()
+
+                rust(
+                    """
+                    use $moduleName::config::{Region, retry::RetryConfig};
+                    use $moduleName::{Client, Config};
+                    """,
+                )
+
+                tokioTest("should_emit_metric_in_user_agent_standard_mode") {
+                    rustTemplate(
+                        """
+                        let (http_client, rcvr) = #{capture_request}(#{None});
+                        let config = Config::builder()
+                            .region(Region::new("us-east-1"))
+                            .http_client(http_client.clone())
+                            .retry_config(RetryConfig::standard())
+                            .with_test_defaults()
+                            .build();
+                        let client = Client::from_conf(config);
+                        let _ = client.some_operation().send().await;
+                        let expected_req = rcvr.expect_request();
+                        let user_agent = expected_req
+                            .headers()
+                            .get("x-amz-user-agent")
+                            .unwrap();
+                        #{assert_ua_contains_metric_values}(user_agent, &["E"]);
+                        """,
+                        *preludeScope,
+                        "assert_ua_contains_metric_values" to
+                            AwsRuntimeType.awsRuntimeTestUtil(rc)
+                                .resolve("user_agent::test_util::assert_ua_contains_metric_values"),
+                        "capture_request" to RuntimeType.captureRequest(rc),
+                        "disable_interceptor" to
+                            RuntimeType.smithyRuntimeApiClient(rc)
+                                .resolve("client::interceptors::disable_interceptor"),
+                        "UserAgentInterceptor" to
+                            AwsRuntimeType.awsRuntime(rc)
+                                .resolve("user_agent::UserAgentInterceptor"),
+                    )
+                }
+
+                tokioTest("should_emit_metric_in_user_agent_adaptive_mode") {
+                    rustTemplate(
+                        """
+                        let (http_client, rcvr) = #{capture_request}(#{None});
+                        let config = Config::builder()
+                            .region(Region::new("us-east-1"))
+                            .http_client(http_client.clone())
+                            .retry_config(RetryConfig::adaptive())
+                            .with_test_defaults()
+                            .build();
+                        let client = Client::from_conf(config);
+                        let _ = client.some_operation().send().await;
+                        let expected_req = rcvr.expect_request();
+                        let user_agent = expected_req
+                            .headers()
+                            .get("x-amz-user-agent")
+                            .unwrap();
+                        #{assert_ua_contains_metric_values}(user_agent, &["F"]);
+                        """,
+                        *preludeScope,
+                        "assert_ua_contains_metric_values" to
+                            AwsRuntimeType.awsRuntimeTestUtil(rc)
+                                .resolve("user_agent::test_util::assert_ua_contains_metric_values"),
                         "capture_request" to RuntimeType.captureRequest(rc),
                         "disable_interceptor" to
                             RuntimeType.smithyRuntimeApiClient(rc)
diff --git a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/RetryModeFeatureTrackerRuntimePluginCustomization.kt b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/RetryModeFeatureTrackerRuntimePluginCustomization.kt
new file mode 100644
index 0000000000..db02fba95d
--- /dev/null
+++ b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customizations/RetryModeFeatureTrackerRuntimePluginCustomization.kt
@@ -0,0 +1,38 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package software.amazon.smithy.rust.codegen.client.smithy.customizations
+
+import software.amazon.smithy.rust.codegen.client.smithy.ClientCodegenContext
+import software.amazon.smithy.rust.codegen.client.smithy.generators.ServiceRuntimePluginCustomization
+import software.amazon.smithy.rust.codegen.client.smithy.generators.ServiceRuntimePluginSection
+import software.amazon.smithy.rust.codegen.core.rustlang.InlineDependency
+import software.amazon.smithy.rust.codegen.core.rustlang.Writable
+import software.amazon.smithy.rust.codegen.core.rustlang.rust
+import software.amazon.smithy.rust.codegen.core.rustlang.writable
+import software.amazon.smithy.rust.codegen.core.smithy.RuntimeType
+
+class RetryModeFeatureTrackerRuntimePluginCustomization(codegenContext: ClientCodegenContext) :
+    ServiceRuntimePluginCustomization() {
+    private val runtimeConfig = codegenContext.runtimeConfig
+
+    override fun section(section: ServiceRuntimePluginSection): Writable =
+        writable {
+            when (section) {
+                is ServiceRuntimePluginSection.RegisterRuntimeComponents -> {
+                    section.registerInterceptor(this) {
+                        rust(
+                            "#T::new()",
+                            RuntimeType.forInlineDependency(
+                                InlineDependency.sdkFeatureTracker(runtimeConfig),
+                            ).resolve("retry_mode::RetryModeFeatureTrackerInterceptor"),
+                        )
+                    }
+                }
+
+                else -> emptySection
+            }
+        }
+}
diff --git a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customize/RequiredCustomizations.kt b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customize/RequiredCustomizations.kt
index a16f878002..3c11c75011 100644
--- a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customize/RequiredCustomizations.kt
+++ b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customize/RequiredCustomizations.kt
@@ -19,6 +19,7 @@ import software.amazon.smithy.rust.codegen.client.smithy.customizations.Resilien
 import software.amazon.smithy.rust.codegen.client.smithy.customizations.RetryClassifierConfigCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.customizations.RetryClassifierOperationCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.customizations.RetryClassifierServiceRuntimePluginCustomization
+import software.amazon.smithy.rust.codegen.client.smithy.customizations.RetryModeFeatureTrackerRuntimePluginCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.customizations.TimeSourceCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.generators.ServiceRuntimePluginCustomization
@@ -134,5 +135,6 @@ class RequiredCustomizations : ClientCodegenDecorator {
     ): List<ServiceRuntimePluginCustomization> =
         baseCustomizations +
             ConnectionPoisoningRuntimePluginCustomization(codegenContext) +
-            RetryClassifierServiceRuntimePluginCustomization(codegenContext)
+            RetryClassifierServiceRuntimePluginCustomization(codegenContext) +
+            RetryModeFeatureTrackerRuntimePluginCustomization(codegenContext)
 }
diff --git a/rust-runtime/Cargo.lock b/rust-runtime/Cargo.lock
index 6a4c1a8870..abcb4268ca 100644
--- a/rust-runtime/Cargo.lock
+++ b/rust-runtime/Cargo.lock
@@ -182,16 +182,16 @@ dependencies = [
 
 [[package]]
 name = "aws-runtime"
-version = "1.4.4"
+version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5ac934720fbb46206292d2c75b57e67acfc56fe7dfd34fb9a02334af08409ea"
+checksum = "a10d5c055aa540164d9561a0e2e74ad30f0dcf7393c3a92f6733ddf9c5762468"
 dependencies = [
  "aws-credential-types",
  "aws-sigv4",
  "aws-smithy-async 1.2.1",
  "aws-smithy-eventstream 0.60.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "aws-smithy-http 0.60.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-runtime 1.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aws-smithy-runtime 1.7.3",
  "aws-smithy-runtime-api 1.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "aws-smithy-types 1.2.9",
  "aws-types",
@@ -208,9 +208,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sdk-s3"
-version = "1.65.0"
+version = "1.64.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3ba2c5c0f2618937ce3d4a5ad574b86775576fa24006bcb3128c6e2cbf3c34e"
+checksum = "35fe5e7f71b1cc6274e905d3bcc7daf94099ac2d4cba83447ffb959b5b27b3c1"
 dependencies = [
  "aws-credential-types",
  "aws-runtime",
@@ -219,8 +219,8 @@ dependencies = [
  "aws-smithy-checksums 0.60.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "aws-smithy-eventstream 0.60.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "aws-smithy-http 0.60.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-json 0.61.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-runtime 1.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aws-smithy-json 0.60.7",
+ "aws-smithy-runtime 1.7.3",
  "aws-smithy-runtime-api 1.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "aws-smithy-types 1.2.9",
  "aws-smithy-xml 0.60.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -242,9 +242,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sigv4"
-version = "1.2.6"
+version = "1.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d3820e0c08d0737872ff3c7c1f21ebbb6693d832312d6152bf18ef50a5471c2"
+checksum = "5619742a0d8f253be760bfbb8e8e8368c69e3587e4637af5754e488a611499b1"
 dependencies = [
  "aws-credential-types",
  "aws-smithy-eventstream 0.60.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -282,7 +282,7 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-async"
-version = "1.2.2"
+version = "1.2.3"
 dependencies = [
  "futures-util",
  "pin-project-lite",
@@ -295,7 +295,7 @@ dependencies = [
 name = "aws-smithy-cbor"
 version = "0.60.8"
 dependencies = [
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "criterion",
  "minicbor",
 ]
@@ -305,7 +305,7 @@ name = "aws-smithy-checksums"
 version = "0.60.13"
 dependencies = [
  "aws-smithy-http 0.60.11",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "bytes-utils",
  "crc32c",
@@ -353,7 +353,7 @@ name = "aws-smithy-compression"
 version = "0.0.2"
 dependencies = [
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "bytes-utils",
  "flate2",
@@ -374,7 +374,7 @@ name = "aws-smithy-eventstream"
 version = "0.60.5"
 dependencies = [
  "arbitrary",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "bytes-utils",
  "crc32fast",
@@ -396,10 +396,10 @@ dependencies = [
 name = "aws-smithy-experimental"
 version = "0.1.5"
 dependencies = [
- "aws-smithy-async 1.2.2",
- "aws-smithy-runtime 1.7.5",
+ "aws-smithy-async 1.2.3",
+ "aws-smithy-runtime 1.7.6",
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "h2 0.4.7",
  "http 1.2.0",
  "hyper 1.5.1",
@@ -420,7 +420,7 @@ dependencies = [
  "async-stream",
  "aws-smithy-eventstream 0.60.5",
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "bytes-utils",
  "futures-core",
@@ -470,7 +470,7 @@ dependencies = [
  "aws-smithy-http 0.60.11",
  "aws-smithy-json 0.61.1",
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "aws-smithy-xml 0.60.9",
  "bytes",
  "futures-util",
@@ -500,7 +500,7 @@ dependencies = [
  "aws-smithy-http 0.60.11",
  "aws-smithy-http-server",
  "aws-smithy-json 0.61.1",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "aws-smithy-xml 0.60.9",
  "bytes",
  "futures",
@@ -538,20 +538,20 @@ version = "0.60.3"
 
 [[package]]
 name = "aws-smithy-json"
-version = "0.61.1"
+version = "0.60.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4683df9469ef09468dad3473d129960119a0d3593617542b7d52086c8486f2d6"
 dependencies = [
- "aws-smithy-types 1.2.10",
- "proptest",
- "serde_json",
+ "aws-smithy-types 1.2.9",
 ]
 
 [[package]]
 name = "aws-smithy-json"
 version = "0.61.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee4e69cc50921eb913c6b662f8d909131bb3e6ad6cb6090d3a39b66fc5c52095"
 dependencies = [
- "aws-smithy-types 1.2.9",
+ "aws-smithy-types 1.2.11",
+ "proptest",
+ "serde_json",
 ]
 
 [[package]]
@@ -560,7 +560,7 @@ version = "0.2.1"
 dependencies = [
  "aws-sdk-s3",
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "tokio",
 ]
 
@@ -604,26 +604,25 @@ dependencies = [
 name = "aws-smithy-query"
 version = "0.60.7"
 dependencies = [
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "urlencoding",
 ]
 
 [[package]]
 name = "aws-smithy-runtime"
-version = "1.7.4"
+version = "1.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be28bd063fa91fd871d131fc8b68d7cd4c5fa0869bea68daca50dcb1cbd76be2"
 dependencies = [
- "approx",
  "aws-smithy-async 1.2.1",
- "aws-smithy-http 0.60.11",
- "aws-smithy-protocol-test 0.63.0",
- "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-http 0.60.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aws-smithy-protocol-test 0.63.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aws-smithy-runtime-api 1.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aws-smithy-types 1.2.9",
  "bytes",
  "fastrand",
- "futures-util",
  "h2 0.3.26",
  "http 0.2.12",
- "http 1.2.0",
  "http-body 0.4.6",
  "http-body 1.0.1",
  "httparse",
@@ -633,31 +632,30 @@ dependencies = [
  "once_cell",
  "pin-project-lite",
  "pin-utils",
- "pretty_assertions",
  "rustls 0.21.12",
  "serde",
  "serde_json",
  "tokio",
  "tracing",
  "tracing-subscriber",
- "tracing-test",
 ]
 
 [[package]]
 name = "aws-smithy-runtime"
-version = "1.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f20685047ca9d6f17b994a07f629c813f08b5bce65523e47124879e60103d45"
+version = "1.7.6"
 dependencies = [
- "aws-smithy-async 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-http 0.60.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-protocol-test 0.63.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-runtime-api 1.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "aws-smithy-types 1.2.9",
+ "approx",
+ "aws-smithy-async 1.2.3",
+ "aws-smithy-http 0.60.11",
+ "aws-smithy-protocol-test 0.63.0",
+ "aws-smithy-runtime-api 1.7.3",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "fastrand",
+ "futures-util",
  "h2 0.3.26",
  "http 0.2.12",
+ "http 1.2.0",
  "http-body 0.4.6",
  "http-body 1.0.1",
  "httparse",
@@ -667,20 +665,22 @@ dependencies = [
  "once_cell",
  "pin-project-lite",
  "pin-utils",
+ "pretty_assertions",
  "rustls 0.21.12",
  "serde",
  "serde_json",
  "tokio",
  "tracing",
  "tracing-subscriber",
+ "tracing-test",
 ]
 
 [[package]]
 name = "aws-smithy-runtime-api"
 version = "1.7.3"
 dependencies = [
- "aws-smithy-async 1.2.1",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-async 1.2.3",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "http 0.2.12",
  "http 1.2.0",
@@ -697,7 +697,7 @@ version = "1.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92165296a47a812b267b4f41032ff8069ab7ff783696d217f0994a0d7ab585cd"
 dependencies = [
- "aws-smithy-async 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aws-smithy-async 1.2.1",
  "aws-smithy-types 1.2.9",
  "bytes",
  "http 0.2.12",
@@ -736,7 +736,7 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-types"
-version = "1.2.10"
+version = "1.2.11"
 dependencies = [
  "base64 0.13.1",
  "base64-simd",
@@ -772,8 +772,8 @@ dependencies = [
 name = "aws-smithy-types-convert"
 version = "0.60.8"
 dependencies = [
- "aws-smithy-async 1.2.1",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-async 1.2.3",
+ "aws-smithy-types 1.2.11",
  "chrono",
  "futures-core",
  "time",
@@ -785,7 +785,7 @@ version = "0.1.3"
 dependencies = [
  "aws-smithy-http 0.60.11",
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "bytes",
  "http 1.2.0",
  "tracing",
@@ -1022,9 +1022,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.3"
+version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27f657647bcff5394bf56c7317665bbf790a137a50eaaa5c6bfbb9e27a518f2d"
+checksum = "f34d93e62b03caf570cccc334cbc6c2fceca82f39211051345108adcba3eebdc"
 dependencies = [
  "jobserver",
  "libc",
@@ -1048,9 +1048,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.39"
+version = "0.4.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e36cc9d416881d2e24f9a963be5fb1cd90966419ac844274161d10488b3e825"
+checksum = "a21f936df1771bf62b77f047b726c4625ff2e8aa607c01ec06e5a05bd8463401"
 dependencies = [
  "num-traits",
 ]
@@ -1110,21 +1110,21 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.23"
+version = "4.5.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3135e7ec2ef7b10c6ed8950f0f792ed96ee093fa088608f1c76e569722700c84"
+checksum = "69371e34337c4c984bbe322360c2547210bf632eb2814bbe78a6e87a2935bd2b"
 dependencies = [
  "clap_builder",
 ]
 
 [[package]]
 name = "clap_builder"
-version = "4.5.23"
+version = "4.5.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30582fc632330df2bd26877bde0c1f4470d57c582bbc070376afcd04d8cb4838"
+checksum = "6e24c1b4099818523236a8ca881d2b45db98dadfb4625cf6608c12069fcbbde1"
 dependencies = [
  "anstyle",
- "clap_lex 0.7.4",
+ "clap_lex 0.7.3",
 ]
 
 [[package]]
@@ -1138,9 +1138,9 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.7.4"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
+checksum = "afb84c814227b90d6895e01398aee0d8033c00e7466aca416fb6a8e0eb19d8a7"
 
 [[package]]
 name = "cmake"
@@ -1228,7 +1228,7 @@ dependencies = [
  "anes",
  "cast",
  "ciborium",
- "clap 4.5.23",
+ "clap 4.5.22",
  "criterion-plot",
  "is-terminal",
  "itertools 0.10.5",
@@ -1921,7 +1921,7 @@ dependencies = [
  "rustls-native-certs 0.8.1",
  "rustls-pki-types",
  "tokio",
- "tokio-rustls 0.26.1",
+ "tokio-rustls 0.26.0",
  "tower-service",
 ]
 
@@ -1989,9 +1989,9 @@ dependencies = [
  "aws-smithy-compression",
  "aws-smithy-http 0.60.11",
  "aws-smithy-json 0.61.1",
- "aws-smithy-runtime 1.7.5",
+ "aws-smithy-runtime 1.7.6",
  "aws-smithy-runtime-api 1.7.3",
- "aws-smithy-types 1.2.10",
+ "aws-smithy-types 1.2.11",
  "aws-smithy-xml 0.60.9",
  "bytes",
  "fastrand",
@@ -2061,9 +2061,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.76"
+version = "0.3.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6717b6b5b077764fb5966237269cb3c64edddde4b14ce42647430a78ced9e7b7"
+checksum = "a865e038f7f6ed956f788f0d7d60c541fff74c7bd74272c5d4cf15c63743e705"
 dependencies = [
  "once_cell",
  "wasm-bindgen",
@@ -2143,9 +2143,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.168"
+version = "0.2.167"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
+checksum = "09d6582e104315a817dff97f75133544b2e094ee22447d2acf4a74e189ba06fc"
 
 [[package]]
 name = "libloading"
@@ -2932,15 +2932,15 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.42"
+version = "0.38.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f93dc38ecbab2eb790ff964bb77fa94faf256fd3e73285fd7ba0903b76bedb85"
+checksum = "d7f649912bc1495e167a6edee79151c84b1bad49748cb4f1f1167f459f6224f6"
 dependencies = [
  "bitflags 2.6.0",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3523,19 +3523,20 @@ dependencies = [
 
 [[package]]
 name = "tokio-rustls"
-version = "0.26.1"
+version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f6d0975eaace0cf0fcadee4e4aaa5da15b5c079146f2cffb67c113be122bf37"
+checksum = "0c7bc40d0e5a97695bb96e27995cd3a08538541b0a846f65bba7a359f36700d4"
 dependencies = [
  "rustls 0.23.19",
+ "rustls-pki-types",
  "tokio",
 ]
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.17"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eca58d7bba4a75707817a2c44174253f9236b2d5fbd055602e9d5c07c139a047"
+checksum = "4f4e6ce100d0eb49a2734f8c0812bcd324cf357d21810932c5df6b96ef2b86f1"
 dependencies = [
  "futures-core",
  "pin-project-lite",
@@ -3557,9 +3558,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.13"
+version = "0.7.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7fcaa8d55a2bdd6b83ace262b016eca0d79ee02818c5c1bcdf0305114081078"
+checksum = "61e7c3654c13bcd040d4a03abee2c75b1d14a37b423cf5a813ceae1cc903ec6a"
 dependencies = [
  "bytes",
  "futures-core",
@@ -3883,9 +3884,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.99"
+version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a474f6281d1d70c17ae7aa6a613c87fce69a127e2624002df63dcb39d6cf6396"
+checksum = "d15e63b4482863c109d70a7b8706c1e364eb6ea449b201a76c5b89cedcec2d5c"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -3894,12 +3895,13 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.99"
+version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f89bb38646b4f81674e8f5c3fb81b562be1fd936d84320f3264486418519c79"
+checksum = "8d36ef12e3aaca16ddd3f67922bc63e48e953f126de60bd33ccc0101ef9998cd"
 dependencies = [
  "bumpalo",
  "log",
+ "once_cell",
  "proc-macro2",
  "quote",
  "syn 2.0.90",
@@ -3908,9 +3910,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.99"
+version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cc6181fd9a7492eef6fef1f33961e3695e4579b9872a6f7c83aee556666d4fe"
+checksum = "705440e08b42d3e4b36de7d66c944be628d579796b8090bfa3471478a2260051"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3918,9 +3920,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.99"
+version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30d7a95b763d3c45903ed6c81f156801839e5ee968bb07e534c44df0fcd330c2"
+checksum = "98c9ae5a76e46f4deecd0f0255cc223cfa18dc9b261213b8aa0c7b36f61b3f1d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3931,15 +3933,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.99"
+version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "943aab3fdaaa029a6e0271b35ea10b72b943135afe9bffca82384098ad0e06a6"
+checksum = "6ee99da9c5ba11bd675621338ef6fa52296b76b83305e9b6e5c77d4c286d6d49"
 
 [[package]]
 name = "web-sys"
-version = "0.3.76"
+version = "0.3.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04dd7223427d52553d3702c004d3b2fe07c148165faa56313cb00211e31c12bc"
+checksum = "a98bc3c33f0fe7e59ad7cd041b89034fa82a7c2d4365ca538dda6cdaf513863c"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
diff --git a/rust-runtime/aws-smithy-async/Cargo.toml b/rust-runtime/aws-smithy-async/Cargo.toml
index 053e8170ea..d7c9037eff 100644
--- a/rust-runtime/aws-smithy-async/Cargo.toml
+++ b/rust-runtime/aws-smithy-async/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aws-smithy-async"
-version = "1.2.2"
+version = "1.2.3"
 authors = ["AWS Rust SDK Team <aws-sdk-rust@amazon.com>", "John DiSanti <jdisanti@amazon.com>"]
 description = "Async runtime agnostic abstractions for smithy-rs."
 edition = "2021"
diff --git a/rust-runtime/aws-smithy-runtime/Cargo.toml b/rust-runtime/aws-smithy-runtime/Cargo.toml
index 29a6d2fa2c..71c3610648 100644
--- a/rust-runtime/aws-smithy-runtime/Cargo.toml
+++ b/rust-runtime/aws-smithy-runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aws-smithy-runtime"
-version = "1.7.5"
+version = "1.7.6"
 authors = ["AWS Rust SDK Team <aws-sdk-rust@amazon.com>", "Zelda Hessler <zhessler@amazon.com>"]
 description = "The new smithy runtime crate"
 edition = "2021"
diff --git a/rust-runtime/aws-smithy-runtime/src/client/sdk_feature.rs b/rust-runtime/aws-smithy-runtime/src/client/sdk_feature.rs
index 5a8ab95a13..254458dc91 100644
--- a/rust-runtime/aws-smithy-runtime/src/client/sdk_feature.rs
+++ b/rust-runtime/aws-smithy-runtime/src/client/sdk_feature.rs
@@ -12,6 +12,17 @@ pub enum SmithySdkFeature {
     Paginator,
     GzipRequestCompression,
     ProtocolRpcV2Cbor,
+    RetryModeStandard,
+    RetryModeAdaptive,
+    FlexibleChecksumsReqCrc32,
+    FlexibleChecksumsReqCrc32c,
+    FlexibleChecksumsReqCrc64,
+    FlexibleChecksumsReqSha1,
+    FlexibleChecksumsReqSha256,
+    FlexibleChecksumsReqWhenSupported,
+    FlexibleChecksumsReqWhenRequired,
+    FlexibleChecksumsResWhenSupported,
+    FlexibleChecksumsResWhenRequired,
 }
 
 impl Storable for SmithySdkFeature {
diff --git a/rust-runtime/aws-smithy-types/Cargo.toml b/rust-runtime/aws-smithy-types/Cargo.toml
index e6093486c7..2497213697 100644
--- a/rust-runtime/aws-smithy-types/Cargo.toml
+++ b/rust-runtime/aws-smithy-types/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aws-smithy-types"
-version = "1.2.10"
+version = "1.2.11"
 authors = [
     "AWS Rust SDK Team <aws-sdk-rust@amazon.com>",
     "Russell Cohen <rcoh@amazon.com>",
diff --git a/rust-runtime/inlineable/src/sdk_feature_tracker.rs b/rust-runtime/inlineable/src/sdk_feature_tracker.rs
index 2f36e121df..acc653842b 100644
--- a/rust-runtime/inlineable/src/sdk_feature_tracker.rs
+++ b/rust-runtime/inlineable/src/sdk_feature_tracker.rs
@@ -172,3 +172,49 @@ pub(crate) mod waiter {
         }
     }
 }
+
+#[allow(dead_code)]
+pub(crate) mod retry_mode {
+    use aws_smithy_runtime::client::sdk_feature::SmithySdkFeature;
+    use aws_smithy_runtime_api::box_error::BoxError;
+    use aws_smithy_runtime_api::client::interceptors::context::BeforeSerializationInterceptorContextRef;
+    use aws_smithy_runtime_api::client::interceptors::Intercept;
+    use aws_smithy_runtime_api::client::runtime_components::RuntimeComponents;
+    use aws_smithy_types::config_bag::ConfigBag;
+    use aws_smithy_types::retry::{RetryConfig, RetryMode};
+
+    #[derive(Debug)]
+    pub(crate) struct RetryModeFeatureTrackerInterceptor;
+
+    impl RetryModeFeatureTrackerInterceptor {
+        pub(crate) fn new() -> Self {
+            Self
+        }
+    }
+
+    impl Intercept for RetryModeFeatureTrackerInterceptor {
+        fn name(&self) -> &'static str {
+            "RetryModeFeatureTrackerInterceptor"
+        }
+
+        fn read_before_serialization(
+            &self,
+            _context: &BeforeSerializationInterceptorContextRef<'_>,
+            _runtime_components: &RuntimeComponents,
+            cfg: &mut ConfigBag,
+        ) -> Result<(), BoxError> {
+            cfg.load::<RetryConfig>()
+                .map(|retry_config| match retry_config.mode() {
+                    RetryMode::Standard => SmithySdkFeature::RetryModeStandard,
+                    RetryMode::Adaptive => SmithySdkFeature::RetryModeAdaptive,
+                    _ => unreachable!("retry mode must be standard or adaptive"),
+                })
+                .map(|feature| {
+                    cfg.interceptor_state()
+                        .store_append::<SmithySdkFeature>(feature)
+                });
+
+            Ok(())
+        }
+    }
+}