CDK alpha modules

Question

How dependable are CDK alpha modules?  Specifically, if something works how likely is it to keep working? Yes, API changes may happen since they are "experimental". (Noted, as Jean-Luc Picard would say)

Currently, I care about aws-apigatewayv2-integrations-alpha. but this applies to all of them.

Read: 
* https://aws.amazon.com/blogs/developer/experimental-construct-libraries-are-now-available-in-aws-cdk-v2/ 08 NOV 2021
* https://github.com/aws/aws-cdk README
* https://docs.aws.amazon.com/cdk/api/v2/docs/aws-apigatewayv2-integrations-alpha-readme.html which is the one I care about currently 
* https://github.com/aws/aws-cdk/projects/12 which is closed
* Top level AWS CDK docs: https://docs.aws.amazon.com/cdk/api/v2/

Accepted Answer

CDK builds on top of Cloudformation. Items that are not in the Cloudformation spec use Cloudformation Custom Resources to call AWS API's.

So once deployed it will be stable based on the particular Service API's that it uses and for any Cloudformation Custom Resources the lambda runtime environment that it runs in. (Ie if a particular service changes a API it could break and if the particular runtime environment that the custom resource is using goes out of support. Such as a particular node version no longer supported.)

As far as CDK still being able to synth/deploy the same Cloudformation template. It is stable for the particular version but any upgrade to a later version of CDK or the bootstrapping have no guarantees. You can go to the [AWS-CDK Github Releases](https://github.com/aws/aws-cdk/releases) to pull a older version of code it implement your own that you maintain and build an adapter if you want to upgrade the CDK version but still provide backwards compatibility.

CDK alpha modules

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