I can't find my existing setting in CloudFormation

[hyunwoona]

Hi!
I remember creating a serverless image handler back in April.
I'm sure it was this one.
It's working fine as you can see here https://dm94mry4765rv.cloudfront.net/profile-images/140x140/cl0oql4no000609lasdwl811u-2022-11-15-4l3eo-screen-shot-2022-11-15-at-8-17-06-pm-png.
Now, I'm trying to find where I set it in the AWS console. However, when I go to the AWS console > CloudFormation > Stacks, there's no stack to display.
Is this because it's an old version? I got a warning email saying

You are receiving this notification because you currently have at least one CloudFormation Stack deployed using version 1 of the AWS Cloud Development Kit (CDK). AWS CDK v1 is now in maintenance mode. During maintenance mode, AWS CDK v1 releases will contain new and updated resource level "L1" constructs, critical bug fixes, and security updates only. CDK v1 will not receive higher-level "L2" construct updates for new or existing services while in maintenance mode. Maintenance mode has a duration of 12 months.

Where can I find my setting? Should I consider this will not work soon and migrate my images to the new 6.x version?

[dougtoppin]

@hyunwoona The CloudFormation stack and deployment would not be automatically deleted. Is it possible that it was created in a different region that you are checking?

One way to find the CloudFormation stack is to go to the Lambda console, find a ServerlessImageHandler Lambda, and then go to the Configuration tab and check the tags. The CloudFormation stack name that created the Lambda should be one of the tags but you will still need to check each region that it might have been created in.

Migrating to the most recent version will provide various package updates and new functionality, but your existing deployment should continue to work even though the CDK version is in maintenance mode or beyond.