diff --git a/clients/client-cloud9/README.md b/clients/client-cloud9/README.md
index 55b6692a1792..4447b4e99fec 100644
--- a/clients/client-cloud9/README.md
+++ b/clients/client-cloud9/README.md
@@ -11,6 +11,12 @@ AWS SDK for JavaScript Cloud9 Client for Node.js, Browser and React Native.
 <p>Cloud9 is a collection of tools that you can use to code, build, run, test, debug, and
 release software in the cloud.</p>
 <p>For more information about Cloud9, see the <a href="https://docs.aws.amazon.com/cloud9/latest/user-guide">Cloud9 User Guide</a>.</p>
+<important>
+<p>Cloud9 is no longer available to new customers. Existing customers of
+Cloud9 can continue to use the service as normal.
+<a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+</p>
+</important>
 <p>Cloud9 supports these operations:</p>
 <ul>
 <li>
diff --git a/clients/client-cloud9/src/Cloud9.ts b/clients/client-cloud9/src/Cloud9.ts
index 20aaf0d7bf85..e395024e3c53 100644
--- a/clients/client-cloud9/src/Cloud9.ts
+++ b/clients/client-cloud9/src/Cloud9.ts
@@ -299,6 +299,12 @@ export interface Cloud9 {
  *          <p>Cloud9 is a collection of tools that you can use to code, build, run, test, debug, and
  *       release software in the cloud.</p>
  *          <p>For more information about Cloud9, see the <a href="https://docs.aws.amazon.com/cloud9/latest/user-guide">Cloud9 User Guide</a>.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  *          <p>Cloud9 supports these operations:</p>
  *          <ul>
  *             <li>
diff --git a/clients/client-cloud9/src/Cloud9Client.ts b/clients/client-cloud9/src/Cloud9Client.ts
index 83d41fc2ca3f..6d85a9590264 100644
--- a/clients/client-cloud9/src/Cloud9Client.ts
+++ b/clients/client-cloud9/src/Cloud9Client.ts
@@ -313,6 +313,12 @@ export interface Cloud9ClientResolvedConfig extends Cloud9ClientResolvedConfigTy
  *          <p>Cloud9 is a collection of tools that you can use to code, build, run, test, debug, and
  *       release software in the cloud.</p>
  *          <p>For more information about Cloud9, see the <a href="https://docs.aws.amazon.com/cloud9/latest/user-guide">Cloud9 User Guide</a>.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  *          <p>Cloud9 supports these operations:</p>
  *          <ul>
  *             <li>
diff --git a/clients/client-cloud9/src/commands/CreateEnvironmentEC2Command.ts b/clients/client-cloud9/src/commands/CreateEnvironmentEC2Command.ts
index 610888bd9bbb..c5c0ab37a534 100644
--- a/clients/client-cloud9/src/commands/CreateEnvironmentEC2Command.ts
+++ b/clients/client-cloud9/src/commands/CreateEnvironmentEC2Command.ts
@@ -34,6 +34,12 @@ export interface CreateEnvironmentEC2CommandOutput extends CreateEnvironmentEC2R
 /**
  * <p>Creates an Cloud9 development environment, launches an Amazon Elastic Compute Cloud (Amazon EC2) instance, and
  *       then connects from the instance to the environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/CreateEnvironmentMembershipCommand.ts b/clients/client-cloud9/src/commands/CreateEnvironmentMembershipCommand.ts
index 48cae2a7b3e1..81a37d641a8a 100644
--- a/clients/client-cloud9/src/commands/CreateEnvironmentMembershipCommand.ts
+++ b/clients/client-cloud9/src/commands/CreateEnvironmentMembershipCommand.ts
@@ -29,6 +29,12 @@ export interface CreateEnvironmentMembershipCommandOutput extends CreateEnvironm
 
 /**
  * <p>Adds an environment member to an Cloud9 development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/DeleteEnvironmentCommand.ts b/clients/client-cloud9/src/commands/DeleteEnvironmentCommand.ts
index ed95c28ed6db..0bc395fd7f31 100644
--- a/clients/client-cloud9/src/commands/DeleteEnvironmentCommand.ts
+++ b/clients/client-cloud9/src/commands/DeleteEnvironmentCommand.ts
@@ -30,6 +30,12 @@ export interface DeleteEnvironmentCommandOutput extends DeleteEnvironmentResult,
 /**
  * <p>Deletes an Cloud9 development environment. If an Amazon EC2 instance is connected to the
  *       environment, also terminates the instance.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/DeleteEnvironmentMembershipCommand.ts b/clients/client-cloud9/src/commands/DeleteEnvironmentMembershipCommand.ts
index d27d122b6ec5..2af96fa2b321 100644
--- a/clients/client-cloud9/src/commands/DeleteEnvironmentMembershipCommand.ts
+++ b/clients/client-cloud9/src/commands/DeleteEnvironmentMembershipCommand.ts
@@ -29,6 +29,12 @@ export interface DeleteEnvironmentMembershipCommandOutput extends DeleteEnvironm
 
 /**
  * <p>Deletes an environment member from a development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/DescribeEnvironmentMembershipsCommand.ts b/clients/client-cloud9/src/commands/DescribeEnvironmentMembershipsCommand.ts
index 2d351f159c1c..8da3f8adb819 100644
--- a/clients/client-cloud9/src/commands/DescribeEnvironmentMembershipsCommand.ts
+++ b/clients/client-cloud9/src/commands/DescribeEnvironmentMembershipsCommand.ts
@@ -34,6 +34,12 @@ export interface DescribeEnvironmentMembershipsCommandOutput
 
 /**
  * <p>Gets information about environment members for an Cloud9 development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/DescribeEnvironmentStatusCommand.ts b/clients/client-cloud9/src/commands/DescribeEnvironmentStatusCommand.ts
index ea8b696a4247..6831e9af4609 100644
--- a/clients/client-cloud9/src/commands/DescribeEnvironmentStatusCommand.ts
+++ b/clients/client-cloud9/src/commands/DescribeEnvironmentStatusCommand.ts
@@ -29,6 +29,12 @@ export interface DescribeEnvironmentStatusCommandOutput extends DescribeEnvironm
 
 /**
  * <p>Gets status information for an Cloud9 development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/DescribeEnvironmentsCommand.ts b/clients/client-cloud9/src/commands/DescribeEnvironmentsCommand.ts
index b3e78a4d33e8..15127b8b3e8e 100644
--- a/clients/client-cloud9/src/commands/DescribeEnvironmentsCommand.ts
+++ b/clients/client-cloud9/src/commands/DescribeEnvironmentsCommand.ts
@@ -33,6 +33,12 @@ export interface DescribeEnvironmentsCommandOutput extends DescribeEnvironmentsR
 
 /**
  * <p>Gets information about Cloud9 development environments.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/ListEnvironmentsCommand.ts b/clients/client-cloud9/src/commands/ListEnvironmentsCommand.ts
index 32817b0da915..b692cecea012 100644
--- a/clients/client-cloud9/src/commands/ListEnvironmentsCommand.ts
+++ b/clients/client-cloud9/src/commands/ListEnvironmentsCommand.ts
@@ -29,6 +29,18 @@ export interface ListEnvironmentsCommandOutput extends ListEnvironmentsResult, _
 
 /**
  * <p>Gets a list of Cloud9 development environment identifiers.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/ListTagsForResourceCommand.ts b/clients/client-cloud9/src/commands/ListTagsForResourceCommand.ts
index 91ce19ad0e73..0e3a2504f5a2 100644
--- a/clients/client-cloud9/src/commands/ListTagsForResourceCommand.ts
+++ b/clients/client-cloud9/src/commands/ListTagsForResourceCommand.ts
@@ -33,6 +33,12 @@ export interface ListTagsForResourceCommandOutput extends ListTagsForResourceRes
 
 /**
  * <p>Gets a list of the tags associated with an Cloud9 development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/TagResourceCommand.ts b/clients/client-cloud9/src/commands/TagResourceCommand.ts
index 66d541a239fb..c7e9dd31e1d5 100644
--- a/clients/client-cloud9/src/commands/TagResourceCommand.ts
+++ b/clients/client-cloud9/src/commands/TagResourceCommand.ts
@@ -30,6 +30,12 @@ export interface TagResourceCommandOutput extends TagResourceResponse, __Metadat
 /**
  * <p>Adds tags to an Cloud9 development environment.</p>
  *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
+ *          <important>
  *             <p>Tags that you add to an Cloud9 environment by using this method will NOT be
  *         automatically propagated to underlying resources.</p>
  *          </important>
diff --git a/clients/client-cloud9/src/commands/UntagResourceCommand.ts b/clients/client-cloud9/src/commands/UntagResourceCommand.ts
index a5b116ebad86..d434be36037a 100644
--- a/clients/client-cloud9/src/commands/UntagResourceCommand.ts
+++ b/clients/client-cloud9/src/commands/UntagResourceCommand.ts
@@ -33,6 +33,12 @@ export interface UntagResourceCommandOutput extends UntagResourceResponse, __Met
 
 /**
  * <p>Removes tags from an Cloud9 development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/UpdateEnvironmentCommand.ts b/clients/client-cloud9/src/commands/UpdateEnvironmentCommand.ts
index f0e546df94c8..6487897cefaf 100644
--- a/clients/client-cloud9/src/commands/UpdateEnvironmentCommand.ts
+++ b/clients/client-cloud9/src/commands/UpdateEnvironmentCommand.ts
@@ -33,6 +33,12 @@ export interface UpdateEnvironmentCommandOutput extends UpdateEnvironmentResult,
 
 /**
  * <p>Changes the settings of an existing Cloud9 development environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/commands/UpdateEnvironmentMembershipCommand.ts b/clients/client-cloud9/src/commands/UpdateEnvironmentMembershipCommand.ts
index a2f5eaa2390c..291aa3f0abb1 100644
--- a/clients/client-cloud9/src/commands/UpdateEnvironmentMembershipCommand.ts
+++ b/clients/client-cloud9/src/commands/UpdateEnvironmentMembershipCommand.ts
@@ -30,6 +30,12 @@ export interface UpdateEnvironmentMembershipCommandOutput extends UpdateEnvironm
 /**
  * <p>Changes the settings of an existing environment member for an Cloud9 development
  *       environment.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  * @example
  * Use a bare-bones client and the command you need to make an API call.
  * ```javascript
diff --git a/clients/client-cloud9/src/index.ts b/clients/client-cloud9/src/index.ts
index 1128f1e38bae..73386b679a19 100644
--- a/clients/client-cloud9/src/index.ts
+++ b/clients/client-cloud9/src/index.ts
@@ -5,6 +5,12 @@
  *          <p>Cloud9 is a collection of tools that you can use to code, build, run, test, debug, and
  *       release software in the cloud.</p>
  *          <p>For more information about Cloud9, see the <a href="https://docs.aws.amazon.com/cloud9/latest/user-guide">Cloud9 User Guide</a>.</p>
+ *          <important>
+ *             <p>Cloud9 is no longer available to new customers. Existing customers of
+ *         Cloud9 can continue to use the service as normal.
+ *         <a href="http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/">Learn more"</a>
+ *             </p>
+ *          </important>
  *          <p>Cloud9 supports these operations:</p>
  *          <ul>
  *             <li>
diff --git a/clients/client-cloud9/src/models/models_0.ts b/clients/client-cloud9/src/models/models_0.ts
index 994c172c3d38..3d206206a9b6 100644
--- a/clients/client-cloud9/src/models/models_0.ts
+++ b/clients/client-cloud9/src/models/models_0.ts
@@ -131,14 +131,15 @@ export interface CreateEnvironmentEC2Request {
    * <p>The identifier for the Amazon Machine Image (AMI) that's used to create the EC2 instance.
    *       To choose an AMI for the instance, you must specify a valid AMI alias or a valid Amazon EC2 Systems Manager (SSM)
    *       path.</p>
-   *          <p>From December 04, 2023, you will be required to include the <code>imageId</code> parameter
-   *       for the <code>CreateEnvironmentEC2</code> action. This change will be reflected across all
-   *       direct methods of communicating with the API, such as Amazon Web Services SDK, Amazon Web Services CLI and Amazon Web Services
-   *       CloudFormation. This change will only affect direct API consumers, and not Cloud9 console
-   *       users.</p>
+   *          <p></p>
    *          <p>We recommend using Amazon Linux 2023 as the AMI to create your environment as it is fully
-   *       supported. </p>
-   *          <p>Since Ubuntu 18.04 has ended standard support as of May 31, 2023, we recommend you choose Ubuntu 22.04.</p>
+   *       supported.</p>
+   *          <p>From December 16, 2024, Ubuntu 18.04 will be removed from the list of available
+   *         <code>imageIds</code> for Cloud9. This change is necessary as Ubuntu 18.04 has ended standard
+   *       support on May 31, 2023. This change will only affect direct API consumers, and not Cloud9
+   *       console users.</p>
+   *          <p>Since Ubuntu 18.04 has ended standard support as of May 31, 2023, we recommend you choose
+   *       Ubuntu 22.04.</p>
    *          <p>
    *             <b>AMI aliases </b>
    *          </p>
@@ -156,7 +157,7 @@ export interface CreateEnvironmentEC2Request {
    *                </p>
    *             </li>
    *             <li>
-   *                <p>Ubuntu 22.04:  <code>ubuntu-22.04-x86_64</code>
+   *                <p>Ubuntu 22.04: <code>ubuntu-22.04-x86_64</code>
    *                </p>
    *             </li>
    *          </ul>
@@ -170,7 +171,8 @@ export interface CreateEnvironmentEC2Request {
    *                </p>
    *             </li>
    *             <li>
-   *                <p>Amazon Linux 2023 (recommended): <code>resolve:ssm:/aws/service/cloud9/amis/amazonlinux-2023-x86_64</code>
+   *                <p>Amazon Linux 2023 (recommended):
+   *             <code>resolve:ssm:/aws/service/cloud9/amis/amazonlinux-2023-x86_64</code>
    *                </p>
    *             </li>
    *             <li>
@@ -180,7 +182,7 @@ export interface CreateEnvironmentEC2Request {
    *             </li>
    *             <li>
    *                <p>Ubuntu 22.04:
-   *         <code>resolve:ssm:/aws/service/cloud9/amis/ubuntu-22.04-x86_64</code>
+   *           <code>resolve:ssm:/aws/service/cloud9/amis/ubuntu-22.04-x86_64</code>
    *                </p>
    *             </li>
    *          </ul>
diff --git a/codegen/sdk-codegen/aws-models/cloud9.json b/codegen/sdk-codegen/aws-models/cloud9.json
index 50c9078fa47b..2736b9c86cbb 100644
--- a/codegen/sdk-codegen/aws-models/cloud9.json
+++ b/codegen/sdk-codegen/aws-models/cloud9.json
@@ -85,7 +85,7 @@
           "name": "cloud9"
         },
         "aws.protocols#awsJson1_1": {},
-        "smithy.api#documentation": "<fullname>Cloud9</fullname>\n         <p>Cloud9 is a collection of tools that you can use to code, build, run, test, debug, and\n      release software in the cloud.</p>\n         <p>For more information about Cloud9, see the <a href=\"https://docs.aws.amazon.com/cloud9/latest/user-guide\">Cloud9 User Guide</a>.</p>\n         <p>Cloud9 supports these operations:</p>\n         <ul>\n            <li>\n               <p>\n                  <code>CreateEnvironmentEC2</code>: Creates an Cloud9 development environment, launches\n          an Amazon EC2 instance, and then connects from the instance to the environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>CreateEnvironmentMembership</code>: Adds an environment member to an\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DeleteEnvironment</code>: Deletes an environment. If an Amazon EC2 instance is\n          connected to the environment, also terminates the instance.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DeleteEnvironmentMembership</code>: Deletes an environment member from an\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DescribeEnvironmentMemberships</code>: Gets information about environment\n          members for an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DescribeEnvironments</code>: Gets information about environments.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DescribeEnvironmentStatus</code>: Gets status information for an\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>ListEnvironments</code>: Gets a list of environment identifiers.</p>\n            </li>\n            <li>\n               <p>\n                  <code>ListTagsForResource</code>: Gets the tags for an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>TagResource</code>: Adds tags to an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>UntagResource</code>: Removes tags from an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>UpdateEnvironment</code>: Changes the settings of an existing\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>UpdateEnvironmentMembership</code>: Changes the settings of an existing\n          environment member for an environment.</p>\n            </li>\n         </ul>",
+        "smithy.api#documentation": "<fullname>Cloud9</fullname>\n         <p>Cloud9 is a collection of tools that you can use to code, build, run, test, debug, and\n      release software in the cloud.</p>\n         <p>For more information about Cloud9, see the <a href=\"https://docs.aws.amazon.com/cloud9/latest/user-guide\">Cloud9 User Guide</a>.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>\n         <p>Cloud9 supports these operations:</p>\n         <ul>\n            <li>\n               <p>\n                  <code>CreateEnvironmentEC2</code>: Creates an Cloud9 development environment, launches\n          an Amazon EC2 instance, and then connects from the instance to the environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>CreateEnvironmentMembership</code>: Adds an environment member to an\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DeleteEnvironment</code>: Deletes an environment. If an Amazon EC2 instance is\n          connected to the environment, also terminates the instance.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DeleteEnvironmentMembership</code>: Deletes an environment member from an\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DescribeEnvironmentMemberships</code>: Gets information about environment\n          members for an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DescribeEnvironments</code>: Gets information about environments.</p>\n            </li>\n            <li>\n               <p>\n                  <code>DescribeEnvironmentStatus</code>: Gets status information for an\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>ListEnvironments</code>: Gets a list of environment identifiers.</p>\n            </li>\n            <li>\n               <p>\n                  <code>ListTagsForResource</code>: Gets the tags for an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>TagResource</code>: Adds tags to an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>UntagResource</code>: Removes tags from an environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>UpdateEnvironment</code>: Changes the settings of an existing\n          environment.</p>\n            </li>\n            <li>\n               <p>\n                  <code>UpdateEnvironmentMembership</code>: Changes the settings of an existing\n          environment member for an environment.</p>\n            </li>\n         </ul>",
         "smithy.api#title": "AWS Cloud9",
         "smithy.rules#endpointRuleSet": {
           "version": "1.0",
@@ -1116,7 +1116,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Creates an Cloud9 development environment, launches an Amazon Elastic Compute Cloud (Amazon EC2) instance, and\n      then connects from the instance to the environment.</p>",
+        "smithy.api#documentation": "<p>Creates an Cloud9 development environment, launches an Amazon Elastic Compute Cloud (Amazon EC2) instance, and\n      then connects from the instance to the environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "CreateEnvironmentEC2",
@@ -1176,7 +1176,7 @@
         "imageId": {
           "target": "com.amazonaws.cloud9#ImageId",
           "traits": {
-            "smithy.api#documentation": "<p>The identifier for the Amazon Machine Image (AMI) that's used to create the EC2 instance.\n      To choose an AMI for the instance, you must specify a valid AMI alias or a valid Amazon EC2 Systems Manager (SSM)\n      path.</p>\n         <p>From December 04, 2023, you will be required to include the <code>imageId</code> parameter\n      for the <code>CreateEnvironmentEC2</code> action. This change will be reflected across all\n      direct methods of communicating with the API, such as Amazon Web Services SDK, Amazon Web Services CLI and Amazon Web Services\n      CloudFormation. This change will only affect direct API consumers, and not Cloud9 console\n      users.</p>\n         <p>We recommend using Amazon Linux 2023 as the AMI to create your environment as it is fully\n      supported. </p>\n         <p>Since Ubuntu 18.04 has ended standard support as of May 31, 2023, we recommend you choose Ubuntu 22.04.</p>\n         <p>\n            <b>AMI aliases </b>\n         </p>\n         <ul>\n            <li>\n               <p>Amazon Linux 2: <code>amazonlinux-2-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Amazon Linux 2023 (recommended): <code>amazonlinux-2023-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 18.04: <code>ubuntu-18.04-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 22.04:  <code>ubuntu-22.04-x86_64</code>\n               </p>\n            </li>\n         </ul>\n         <p>\n            <b>SSM paths</b>\n         </p>\n         <ul>\n            <li>\n               <p>Amazon Linux 2:\n          <code>resolve:ssm:/aws/service/cloud9/amis/amazonlinux-2-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Amazon Linux 2023 (recommended): <code>resolve:ssm:/aws/service/cloud9/amis/amazonlinux-2023-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 18.04:\n          <code>resolve:ssm:/aws/service/cloud9/amis/ubuntu-18.04-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 22.04:\n        <code>resolve:ssm:/aws/service/cloud9/amis/ubuntu-22.04-x86_64</code>\n               </p>\n            </li>\n         </ul>",
+            "smithy.api#documentation": "<p>The identifier for the Amazon Machine Image (AMI) that's used to create the EC2 instance.\n      To choose an AMI for the instance, you must specify a valid AMI alias or a valid Amazon EC2 Systems Manager (SSM)\n      path.</p>\n         <p></p>\n         <p>We recommend using Amazon Linux 2023 as the AMI to create your environment as it is fully\n      supported.</p>\n         <p>From December 16, 2024, Ubuntu 18.04 will be removed from the list of available\n        <code>imageIds</code> for Cloud9. This change is necessary as Ubuntu 18.04 has ended standard\n      support on May 31, 2023. This change will only affect direct API consumers, and not Cloud9\n      console users.</p>\n         <p>Since Ubuntu 18.04 has ended standard support as of May 31, 2023, we recommend you choose\n      Ubuntu 22.04.</p>\n         <p>\n            <b>AMI aliases </b>\n         </p>\n         <ul>\n            <li>\n               <p>Amazon Linux 2: <code>amazonlinux-2-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Amazon Linux 2023 (recommended): <code>amazonlinux-2023-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 18.04: <code>ubuntu-18.04-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 22.04: <code>ubuntu-22.04-x86_64</code>\n               </p>\n            </li>\n         </ul>\n         <p>\n            <b>SSM paths</b>\n         </p>\n         <ul>\n            <li>\n               <p>Amazon Linux 2:\n          <code>resolve:ssm:/aws/service/cloud9/amis/amazonlinux-2-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Amazon Linux 2023 (recommended):\n            <code>resolve:ssm:/aws/service/cloud9/amis/amazonlinux-2023-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 18.04:\n          <code>resolve:ssm:/aws/service/cloud9/amis/ubuntu-18.04-x86_64</code>\n               </p>\n            </li>\n            <li>\n               <p>Ubuntu 22.04:\n          <code>resolve:ssm:/aws/service/cloud9/amis/ubuntu-22.04-x86_64</code>\n               </p>\n            </li>\n         </ul>",
             "smithy.api#required": {}
           }
         },
@@ -1261,7 +1261,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Adds an environment member to an Cloud9 development environment.</p>",
+        "smithy.api#documentation": "<p>Adds an environment member to an Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "CreateEnvironmentMembership",
@@ -1360,7 +1360,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Deletes an Cloud9 development environment. If an Amazon EC2 instance is connected to the\n      environment, also terminates the instance.</p>",
+        "smithy.api#documentation": "<p>Deletes an Cloud9 development environment. If an Amazon EC2 instance is connected to the\n      environment, also terminates the instance.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "DeleteEnvironment",
@@ -1406,7 +1406,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Deletes an environment member from a development environment.</p>",
+        "smithy.api#documentation": "<p>Deletes an environment member from a development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "DeleteEnvironmentMembership",
@@ -1504,31 +1504,8 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Gets information about environment members for an Cloud9 development environment.</p>",
+        "smithy.api#documentation": "<p>Gets information about environment members for an Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
-          {
-            "title": "DescribeEnvironmentMemberships1",
-            "documentation": "The following example gets information about all of the environment members for the specified development environment.",
-            "input": {
-              "environmentId": "8d9967e2f0624182b74e7690ad69ebEX"
-            },
-            "output": {
-              "memberships": [
-                {
-                  "environmentId": "8d9967e2f0624182b74e7690ad69ebEX",
-                  "permissions": "read-write",
-                  "userArn": "arn:aws:iam::123456789012:user/AnotherDemoUser",
-                  "userId": "AIDAJ3BA6O2FMJWCWXHEX"
-                },
-                {
-                  "environmentId": "8d9967e2f0624182b74e7690ad69ebEX",
-                  "permissions": "owner",
-                  "userArn": "arn:aws:iam::123456789012:user/MyDemoUser",
-                  "userId": "AIDAJNUEDQAQWFELJDLEX"
-                }
-              ]
-            }
-          },
           {
             "title": "DescribeEnvironmentMemberships2",
             "documentation": "The following example gets information about the owner of the specified development environment.",
@@ -1571,6 +1548,29 @@
                 }
               ]
             }
+          },
+          {
+            "title": "DescribeEnvironmentMemberships1",
+            "documentation": "The following example gets information about all of the environment members for the specified development environment.",
+            "input": {
+              "environmentId": "8d9967e2f0624182b74e7690ad69ebEX"
+            },
+            "output": {
+              "memberships": [
+                {
+                  "environmentId": "8d9967e2f0624182b74e7690ad69ebEX",
+                  "permissions": "read-write",
+                  "userArn": "arn:aws:iam::123456789012:user/AnotherDemoUser",
+                  "userId": "AIDAJ3BA6O2FMJWCWXHEX"
+                },
+                {
+                  "environmentId": "8d9967e2f0624182b74e7690ad69ebEX",
+                  "permissions": "owner",
+                  "userArn": "arn:aws:iam::123456789012:user/MyDemoUser",
+                  "userId": "AIDAJNUEDQAQWFELJDLEX"
+                }
+              ]
+            }
           }
         ],
         "smithy.api#paginated": {
@@ -1670,7 +1670,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Gets status information for an Cloud9 development environment.</p>",
+        "smithy.api#documentation": "<p>Gets status information for an Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "DescribeEnvironmentStatus",
@@ -1755,7 +1755,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Gets information about Cloud9 development environments.</p>",
+        "smithy.api#documentation": "<p>Gets information about Cloud9 development environments.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "DescribeEnvironments",
@@ -2223,7 +2223,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Gets a list of Cloud9 development environment identifiers.</p>",
+        "smithy.api#documentation": "<p>Gets a list of Cloud9 development environment identifiers.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "ListEnvironments",
@@ -2300,7 +2300,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Gets a list of the tags associated with an Cloud9 development environment.</p>"
+        "smithy.api#documentation": "<p>Gets a list of the tags associated with an Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>"
       }
     },
     "com.amazonaws.cloud9#ListTagsForResourceRequest": {
@@ -2594,7 +2594,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Adds tags to an Cloud9 development environment.</p>\n         <important>\n            <p>Tags that you add to an Cloud9 environment by using this method will NOT be\n        automatically propagated to underlying resources.</p>\n         </important>"
+        "smithy.api#documentation": "<p>Adds tags to an Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>\n         <important>\n            <p>Tags that you add to an Cloud9 environment by using this method will NOT be\n        automatically propagated to underlying resources.</p>\n         </important>"
       }
     },
     "com.amazonaws.cloud9#TagResourceRequest": {
@@ -2683,7 +2683,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Removes tags from an Cloud9 development environment.</p>"
+        "smithy.api#documentation": "<p>Removes tags from an Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>"
       }
     },
     "com.amazonaws.cloud9#UntagResourceRequest": {
@@ -2747,7 +2747,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Changes the settings of an existing Cloud9 development environment.</p>",
+        "smithy.api#documentation": "<p>Changes the settings of an existing Cloud9 development environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "UpdateEnvironment",
@@ -2795,7 +2795,7 @@
         }
       ],
       "traits": {
-        "smithy.api#documentation": "<p>Changes the settings of an existing environment member for an Cloud9 development\n      environment.</p>",
+        "smithy.api#documentation": "<p>Changes the settings of an existing environment member for an Cloud9 development\n      environment.</p>\n         <important>\n            <p>Cloud9 is no longer available to new customers. Existing customers of \n        Cloud9 can continue to use the service as normal. \n        <a href=\"http://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/\">Learn more\"</a>\n            </p>\n         </important>",
         "smithy.api#examples": [
           {
             "title": "UpdateEnvironmentMembership",