diff --git a/clients/client-emr/src/commands/AddInstanceFleetCommand.ts b/clients/client-emr/src/commands/AddInstanceFleetCommand.ts
index adec1f1e7ed9..cb9188e46c34 100644
--- a/clients/client-emr/src/commands/AddInstanceFleetCommand.ts
+++ b/clients/client-emr/src/commands/AddInstanceFleetCommand.ts
@@ -118,6 +118,7 @@ export interface AddInstanceFleetCommandOutput extends AddInstanceFleetOutput, _
  *         },
  *       },
  *     },
+ *     Context: "STRING_VALUE",
  *   },
  * };
  * const command = new AddInstanceFleetCommand(input);
diff --git a/clients/client-emr/src/commands/ListInstanceFleetsCommand.ts b/clients/client-emr/src/commands/ListInstanceFleetsCommand.ts
index 0efb4d941540..f3eacab50efa 100644
--- a/clients/client-emr/src/commands/ListInstanceFleetsCommand.ts
+++ b/clients/client-emr/src/commands/ListInstanceFleetsCommand.ts
@@ -137,6 +137,7 @@ export interface ListInstanceFleetsCommandOutput extends ListInstanceFleetsOutpu
  * //           },
  * //         },
  * //       },
+ * //       Context: "STRING_VALUE",
  * //     },
  * //   ],
  * //   Marker: "STRING_VALUE",
diff --git a/clients/client-emr/src/commands/ModifyInstanceFleetCommand.ts b/clients/client-emr/src/commands/ModifyInstanceFleetCommand.ts
index 04bfa57bf38c..9283c5bff9f6 100644
--- a/clients/client-emr/src/commands/ModifyInstanceFleetCommand.ts
+++ b/clients/client-emr/src/commands/ModifyInstanceFleetCommand.ts
@@ -103,6 +103,7 @@ export interface ModifyInstanceFleetCommandOutput extends __MetadataBearer {}
  *         Priority: Number("double"),
  *       },
  *     ],
+ *     Context: "STRING_VALUE",
  *   },
  * };
  * const command = new ModifyInstanceFleetCommand(input);
diff --git a/clients/client-emr/src/commands/RunJobFlowCommand.ts b/clients/client-emr/src/commands/RunJobFlowCommand.ts
index 7c189b1472af..e9445cf479be 100644
--- a/clients/client-emr/src/commands/RunJobFlowCommand.ts
+++ b/clients/client-emr/src/commands/RunJobFlowCommand.ts
@@ -209,6 +209,7 @@ export interface RunJobFlowCommandOutput extends RunJobFlowOutput, __MetadataBea
  *             },
  *           },
  *         },
+ *         Context: "STRING_VALUE",
  *       },
  *     ],
  *     Ec2KeyName: "STRING_VALUE",
diff --git a/clients/client-emr/src/models/models_0.ts b/clients/client-emr/src/models/models_0.ts
index c58989102b8b..1e4df199dcb6 100644
--- a/clients/client-emr/src/models/models_0.ts
+++ b/clients/client-emr/src/models/models_0.ts
@@ -6860,6 +6860,12 @@ export interface InstanceFleet {
    * @public
    */
   ResizeSpecifications?: InstanceFleetResizingSpecifications;
+
+  /**
+   * <p>Reserved.</p>
+   * @public
+   */
+  Context?: string;
 }
 
 /**
@@ -6946,6 +6952,12 @@ export interface InstanceFleetConfig {
    * @public
    */
   ResizeSpecifications?: InstanceFleetResizingSpecifications;
+
+  /**
+   * <p>Reserved.</p>
+   * @public
+   */
+  Context?: string;
 }
 
 /**
@@ -6989,6 +7001,12 @@ export interface InstanceFleetModifyConfig {
    * @public
    */
   InstanceTypeConfigs?: InstanceTypeConfig[];
+
+  /**
+   * <p>Reserved.</p>
+   * @public
+   */
+  Context?: string;
 }
 
 /**
diff --git a/clients/client-emr/src/protocols/Aws_json1_1.ts b/clients/client-emr/src/protocols/Aws_json1_1.ts
index 8dac6bc613c2..25fa83f7f919 100644
--- a/clients/client-emr/src/protocols/Aws_json1_1.ts
+++ b/clients/client-emr/src/protocols/Aws_json1_1.ts
@@ -2407,6 +2407,7 @@ const se_DescribeJobFlowsInput = (input: DescribeJobFlowsInput, context: __Serde
  */
 const se_InstanceFleetConfig = (input: InstanceFleetConfig, context: __SerdeContext): any => {
   return take(input, {
+    Context: [],
     InstanceFleetType: [],
     InstanceTypeConfigs: (_) => se_InstanceTypeConfigList(_, context),
     LaunchSpecifications: _json,
@@ -2433,6 +2434,7 @@ const se_InstanceFleetConfigList = (input: InstanceFleetConfig[], context: __Ser
  */
 const se_InstanceFleetModifyConfig = (input: InstanceFleetModifyConfig, context: __SerdeContext): any => {
   return take(input, {
+    Context: [],
     InstanceFleetId: [],
     InstanceTypeConfigs: (_) => se_InstanceTypeConfigList(_, context),
     ResizeSpecifications: _json,
@@ -3210,6 +3212,7 @@ const de_Instance = (output: any, context: __SerdeContext): Instance => {
  */
 const de_InstanceFleet = (output: any, context: __SerdeContext): InstanceFleet => {
   return take(output, {
+    Context: __expectString,
     Id: __expectString,
     InstanceFleetType: __expectString,
     InstanceTypeSpecifications: (_: any) => de_InstanceTypeSpecificationList(_, context),
diff --git a/codegen/sdk-codegen/aws-models/emr.json b/codegen/sdk-codegen/aws-models/emr.json
index 3baecf847d7d..d2ee1cdeec59 100644
--- a/codegen/sdk-codegen/aws-models/emr.json
+++ b/codegen/sdk-codegen/aws-models/emr.json
@@ -4568,6 +4568,12 @@
           "traits": {
             "smithy.api#documentation": "<p>The resize specification for the instance fleet.</p>"
           }
+        },
+        "Context": {
+          "target": "com.amazonaws.emr#XmlStringMaxLen256",
+          "traits": {
+            "smithy.api#documentation": "<p>Reserved.</p>"
+          }
         }
       },
       "traits": {
@@ -4620,6 +4626,12 @@
           "traits": {
             "smithy.api#documentation": "<p>The resize specification for the instance fleet.</p>"
           }
+        },
+        "Context": {
+          "target": "com.amazonaws.emr#XmlStringMaxLen256",
+          "traits": {
+            "smithy.api#documentation": "<p>Reserved.</p>"
+          }
         }
       },
       "traits": {
@@ -4675,6 +4687,12 @@
           "traits": {
             "smithy.api#documentation": "<p>An array of InstanceTypeConfig objects that specify how Amazon EMR provisions Amazon EC2 instances\n         when it fulfills On-Demand and Spot capacities. For more information, see <a href=\"https://docs.aws.amazon.com/emr/latest/APIReference/API_InstanceTypeConfig.html\">InstanceTypeConfig</a>.</p>"
           }
+        },
+        "Context": {
+          "target": "com.amazonaws.emr#XmlStringMaxLen256",
+          "traits": {
+            "smithy.api#documentation": "<p>Reserved.</p>"
+          }
         }
       },
       "traits": {