(cli): "To get rid of this warning, please upgrade to boostrap version >= undefined"

What is the problem?

The output of cdk diff and cdk deploy are showing the following console warning after printing stack names:

(To get rid of this warning, please upgrade to bootstrap version >= undefined)

For example:

> cdk diff --profile MyProfile
Including dependency stacks: MyStack
Stack MyStack123
(To get rid of this warning, please upgrade to bootstrap version >= undefined)
There were no differences
Stack MyStack456
(To get rid of this warning, please upgrade to bootstrap version >= undefined)
There were no differences

Reproduction Steps

Unable to reproduce outside my current CDK project.

What did you expect to happen?

This error to not appear, or the undefined value to indicate a value to upgrade to, or for the error to have been fixed after a cdk bootstrap was ran.

What actually happened?

The error persists even after a npm install -g aws-cdk, cdk boostrap --profile MyProfile succeeding, and using the latest .NET AWS CDK at time of writing (1.140.0).

CDK CLI Version

2.8.0 (build 8a5eb49)

Framework Version

No response

Node.js Version

n/a

OS

Windows

Language

.NET

Language Version

1.140.0 C# NuGet

Other information

A brand new cdk init project does not show this error, it must be related to my CDK project.

[ksinkar]

@corymhall Still facing this issue in "aws-cdk": "^2.14.0" (npm only, no python)

[vanniktech]

Having the same with version 2.28.1