docs: upgrade guide (#9025)

Author: ryan-mist

website/content/en/preview/reference/cloudformation.md

@@ -712,3 +712,19 @@ These rules include:
        - Id: KarpenterInterruptionQueueTarget
          Arn: !GetAtt KarpenterInterruptionQueue.Arn
   ```
+
+* CapacityReservationInterruptionRule: An EC2 Capacity Reservation Interruption warning informs users that the capacity owner within an AWS Organization is reclaiming reserved capacity, triggering a notification for node reclamation. The [AWS::Events::Rule](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-events-rule.html) here creates a rule to send events from the `aws.ec2` source to `KarpenterInterruptionQueue`.
+
+  ```yaml
+  CapacityReservationInterruptionRule:
+   Type: 'AWS::Events::Rule'
+   Properties:
+     EventPattern:
+       source:
+         - aws.ec2
+       detail-type:
+         - EC2 Capacity Reservation Instance Interruption Warning
+     Targets:
+       - Id: KarpenterInterruptionQueueTarget
+         Arn: !GetAtt KarpenterInterruptionQueue.Arn
+  ```

website/content/en/preview/upgrading/upgrade-guide.md

@@ -86,6 +86,21 @@ If you get the error `invalid ownership metadata; label validation error:` while
 WHEN CREATING A NEW SECTION OF THE UPGRADE GUIDANCE FOR NEWER VERSIONS, ENSURE THAT YOU COPY THE BETA API ALERT SECTION FROM THE LAST RELEASE TO PROPERLY WARN USERS OF THE RISK OF UPGRADING WITHOUT GOING TO 0.32.x FIRST
 -->
 
+### Upgrading to `1.10.0`+
+
+{{% alert title="Warning" color="warning" %}}
+Karpenter `1.1.0` drops the support for `v1beta1` APIs.
+**Do not** upgrade to `1.1.0`+ without following the [Migration Guide]({{<ref "../../v1.0/upgrading/v1-migration.md#before-upgrading-to-v110">}}).
+{{% /alert %}}
+
+* In the [getting started guide's cloudformation template]({{<ref "../../docs/reference/cloudformation/#rules">}}), 
+  there is an extra `detail-type` for EventBridge rules to capture Capacity Reservation Instance Interruption warnings. 
+  If you are using interruptible ODCRs, you will need to update your EventBridge rules to add this `detail-type`.
+
+Full Changelog:
+* https://github.com/aws/karpenter-provider-aws/releases/tag/v1.10.0
+* https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.10.0
+
 ### Upgrading to `1.9.0`+
 
 {{% alert title="Warning" color="warning" %}}