diff --git a/clients/client-ec2/src/models/models_4.ts b/clients/client-ec2/src/models/models_4.ts
index f3d7a2b9fc1f..20d06bae0d3b 100644
--- a/clients/client-ec2/src/models/models_4.ts
+++ b/clients/client-ec2/src/models/models_4.ts
@@ -10400,9 +10400,10 @@ export interface DescribeSpotPriceHistoryRequest {
    *             <li>
    *                <p>
    *                   <code>timestamp</code> - The time stamp of the Spot price history, in UTC format
-   *                     (for example,
-   *                     <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z).
-   *                     You can use wildcards (* and ?). Greater than or less than comparison is not
+   *                     (for example, <i>ddd MMM dd
+   *                         HH</i>:<i>mm</i>:<i>ss</i> UTC
+   *                         <i>YYYY</i>). You can use wildcards (<code>*</code> and
+   *                         <code>?</code>). Greater than or less than comparison is not
    *                     supported.</p>
    *             </li>
    *          </ul>
diff --git a/clients/client-ec2/src/models/models_7.ts b/clients/client-ec2/src/models/models_7.ts
index 1b6bd8d96339..e97d927fa5e4 100644
--- a/clients/client-ec2/src/models/models_7.ts
+++ b/clients/client-ec2/src/models/models_7.ts
@@ -71,6 +71,21 @@ export interface HibernationOptionsRequest {
   /**
    * @public
    * <p>Set to <code>true</code> to enable your instance for hibernation.</p>
+   *          <p>For Spot Instances, if you set <code>Configured</code> to <code>true</code>, either
+   *             omit the <code>InstanceInterruptionBehavior</code> parameter (for <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_SpotMarketOptions.html">
+   *                <code>SpotMarketOptions</code>
+   *             </a>), or set it to
+   *                 <code>hibernate</code>. When <code>Configured</code> is true:</p>
+   *          <ul>
+   *             <li>
+   *                <p>If you omit <code>InstanceInterruptionBehavior</code>, it defaults to
+   *                         <code>hibernate</code>.</p>
+   *             </li>
+   *             <li>
+   *                <p>If you set <code>InstanceInterruptionBehavior</code> to a value other than
+   *                         <code>hibernate</code>, you'll get an error.</p>
+   *             </li>
+   *          </ul>
    *          <p>Default: <code>false</code>
    *          </p>
    */
@@ -129,8 +144,21 @@ export interface SpotMarketOptions {
 
   /**
    * @public
-   * <p>The behavior when a Spot Instance is interrupted. The default is
-   *                 <code>terminate</code>.</p>
+   * <p>The behavior when a Spot Instance is interrupted.</p>
+   *          <p>If <code>Configured</code> (for <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_HibernationOptionsRequest.html">
+   *                <code>HibernationOptions</code>
+   *             </a>) is set to <code>true</code>, the
+   *                 <code>InstanceInterruptionBehavior</code> parameter is automatically set to
+   *                 <code>hibernate</code>. If you set it to <code>stop</code> or
+   *             <code>terminate</code>, you'll get an error.</p>
+   *          <p>If <code>Configured</code> (for <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_HibernationOptionsRequest.html">
+   *                <code>HibernationOptions</code>
+   *             </a>) is set to <code>false</code> or
+   *                 <code>null</code>, the <code>InstanceInterruptionBehavior</code> parameter is
+   *             automatically set to <code>terminate</code>. You can also set it to <code>stop</code> or
+   *                 <code>hibernate</code>.</p>
+   *          <p>For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/interruption-behavior.html">Interruption
+   *                 behavior</a> in the <i>Amazon EC2 User Guide</i>.</p>
    */
   InstanceInterruptionBehavior?: InstanceInterruptionBehavior;
 }
diff --git a/codegen/sdk-codegen/aws-models/ec2.json b/codegen/sdk-codegen/aws-models/ec2.json
index 02ce4dc49f3a..52d05d200496 100644
--- a/codegen/sdk-codegen/aws-models/ec2.json
+++ b/codegen/sdk-codegen/aws-models/ec2.json
@@ -36359,7 +36359,7 @@
         "Filters": {
           "target": "com.amazonaws.ec2#FilterList",
           "traits": {
-            "smithy.api#documentation": "<p>The filters.</p>\n         <ul>\n            <li>\n               <p>\n                  <code>availability-zone</code> - The Availability Zone for which prices should\n                    be returned.</p>\n            </li>\n            <li>\n               <p>\n                  <code>instance-type</code> - The type of instance (for example,\n                    <code>m3.medium</code>).</p>\n            </li>\n            <li>\n               <p>\n                  <code>product-description</code> - The product description for the Spot price\n                    (<code>Linux/UNIX</code> | <code>Red Hat Enterprise Linux</code> |\n                    <code>SUSE Linux</code> | <code>Windows</code> | <code>Linux/UNIX (Amazon\n                        VPC)</code> | <code>Red Hat Enterprise Linux (Amazon VPC)</code> |\n                    <code>SUSE Linux (Amazon VPC)</code> | <code>Windows (Amazon\n                        VPC)</code>).</p>\n            </li>\n            <li>\n               <p>\n                  <code>spot-price</code> - The Spot price. The value must match exactly (or use\n                    wildcards; greater than or less than comparison is not supported).</p>\n            </li>\n            <li>\n               <p>\n                  <code>timestamp</code> - The time stamp of the Spot price history, in UTC format\n                    (for example,\n                    <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z).\n                    You can use wildcards (* and ?). Greater than or less than comparison is not\n                    supported.</p>\n            </li>\n         </ul>",
+            "smithy.api#documentation": "<p>The filters.</p>\n         <ul>\n            <li>\n               <p>\n                  <code>availability-zone</code> - The Availability Zone for which prices should\n                    be returned.</p>\n            </li>\n            <li>\n               <p>\n                  <code>instance-type</code> - The type of instance (for example,\n                    <code>m3.medium</code>).</p>\n            </li>\n            <li>\n               <p>\n                  <code>product-description</code> - The product description for the Spot price\n                    (<code>Linux/UNIX</code> | <code>Red Hat Enterprise Linux</code> |\n                    <code>SUSE Linux</code> | <code>Windows</code> | <code>Linux/UNIX (Amazon\n                        VPC)</code> | <code>Red Hat Enterprise Linux (Amazon VPC)</code> |\n                    <code>SUSE Linux (Amazon VPC)</code> | <code>Windows (Amazon\n                        VPC)</code>).</p>\n            </li>\n            <li>\n               <p>\n                  <code>spot-price</code> - The Spot price. The value must match exactly (or use\n                    wildcards; greater than or less than comparison is not supported).</p>\n            </li>\n            <li>\n               <p>\n                  <code>timestamp</code> - The time stamp of the Spot price history, in UTC format\n                    (for example, <i>ddd MMM dd\n                        HH</i>:<i>mm</i>:<i>ss</i> UTC\n                        <i>YYYY</i>). You can use wildcards (<code>*</code> and\n                        <code>?</code>). Greater than or less than comparison is not\n                    supported.</p>\n            </li>\n         </ul>",
             "smithy.api#xmlName": "Filter"
           }
         },
@@ -51050,7 +51050,7 @@
           "target": "com.amazonaws.ec2#SpotPlacementScores",
           "traits": {
             "aws.protocols#ec2QueryName": "SpotPlacementScoreSet",
-            "smithy.api#documentation": "<p>The Spot placement score for the top 10 Regions or Availability Zones, scored on a scale\n         from 1 to 10. Each score
 reflects how likely it is that each Region or Availability Zone\n         will succeed at fulfilling the specified target capacity
 <i>at the time of the Spot\n            placement score request</i>. A score of <code>10</code> means that your Spot\n         capacity request is highly likely to succeed in that Region or Availability Zone. </p>\n         <p>If you request a Spot placement score for Regions, a high score assumes that your fleet\n         request will be configured to use all Availability Zones and the\n            <code>capacity-optimized</code> allocation strategy. If you request a Spot placement\n         score for Availability Zones, a high score assumes that your fleet request will be\n         configured to use a single Availability Zone and the <code>capacity-optimized</code>\n         allocation strategy.</p>\n         <p>Different
 Regions or Availability Zones might return the same score.</p>\n         <note>\n            <p>The Spot placement score serves as a recommendation only. No score guarantees that your\n            Spot request will be fully or partially fulfilled.</p>\n         </note>",
+            "smithy.api#documentation": "<p>The Spot placement score for the top 10 Regions or Availability Zones, scored on a scale\n         from 1 to 10. Each score\u2028 reflects how likely it is that each Region or Availability Zone\n         will succeed at fulfilling the specified target capacity\u2028 <i>at the time of the Spot\n            placement score request</i>. A score of <code>10</code> means that your Spot\n         capacity request is highly likely to succeed in that Region or Availability Zone. </p>\n         <p>If you request a Spot placement score for Regions, a high score assumes that your fleet\n         request will be configured to use all Availability Zones and the\n            <code>capacity-optimized</code> allocation strategy. If you request a Spot placement\n         score for Availability Zones, a high score assumes that your fleet request will be\n         configured to use a single Availability Zone and the <code>capacity-optimized</code>\n         allocation strategy.</p>\n         <p>Different\u2028 Regions or Availability Zones might return the same score.</p>\n         <note>\n            <p>The Spot placement score serves as a recommendation only. No score guarantees that your\n            Spot request will be fully or partially fulfilled.</p>\n         </note>",
             "smithy.api#xmlName": "spotPlacementScoreSet"
           }
         },
@@ -52269,7 +52269,7 @@
         "Configured": {
           "target": "com.amazonaws.ec2#Boolean",
           "traits": {
-            "smithy.api#documentation": "<p>Set to <code>true</code> to enable your instance for hibernation.</p>\n         <p>Default: <code>false</code>\n         </p>"
+            "smithy.api#documentation": "<p>Set to <code>true</code> to enable your instance for hibernation.</p>\n         <p>For Spot Instances, if you set <code>Configured</code> to <code>true</code>, either\n            omit the <code>InstanceInterruptionBehavior</code> parameter (for <a href=\"https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_SpotMarketOptions.html\">\n               <code>SpotMarketOptions</code>\n            </a>), or set it to\n                <code>hibernate</code>. When <code>Configured</code> is true:</p>\n         <ul>\n            <li>\n               <p>If you omit <code>InstanceInterruptionBehavior</code>, it defaults to\n                        <code>hibernate</code>.</p>\n            </li>\n            <li>\n               <p>If you set <code>InstanceInterruptionBehavior</code> to a value other than\n                        <code>hibernate</code>, you'll get an error.</p>\n            </li>\n         </ul>\n         <p>Default: <code>false</code>\n         </p>"
           }
         }
       },
@@ -91470,7 +91470,7 @@
         "InstanceInterruptionBehavior": {
           "target": "com.amazonaws.ec2#InstanceInterruptionBehavior",
           "traits": {
-            "smithy.api#documentation": "<p>The behavior when a Spot Instance is interrupted. The default is\n                <code>terminate</code>.</p>"
+            "smithy.api#documentation": "<p>The behavior when a Spot Instance is interrupted.</p>\n         <p>If <code>Configured</code> (for <a href=\"https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_HibernationOptionsRequest.html\">\n               <code>HibernationOptions</code>\n            </a>) is set to <code>true</code>, the\n                <code>InstanceInterruptionBehavior</code> parameter is automatically set to\n                <code>hibernate</code>. If you set it to <code>stop</code> or\n            <code>terminate</code>, you'll get an error.</p>\n         <p>If <code>Configured</code> (for <a href=\"https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_HibernationOptionsRequest.html\">\n               <code>HibernationOptions</code>\n            </a>) is set to <code>false</code> or\n                <code>null</code>, the <code>InstanceInterruptionBehavior</code> parameter is\n            automatically set to <code>terminate</code>. You can also set it to <code>stop</code> or\n                <code>hibernate</code>.</p>\n         <p>For more information, see <a href=\"https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/interruption-behavior.html\">Interruption\n                behavior</a> in the <i>Amazon EC2 User Guide</i>.</p>"
           }
         }
       },