{ "BootstrapVersion": { "Type": "AWS::SSM::Parameter::Value<String>", "Default": "/cdk-bootstrap/hnb659fds/version", "Description": "Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]" } }, "Rules": { "CheckBootstrapVersion": { "Assertions": [ { "Assert": { "Fn::Not": [ { "Fn::Contains": [["1","2","3","4","5"],{"Ref": "BootstrapVersion"}] } ] }, "AssertDescription": "CDK bootstrap stack version 6 required. Please run 'cdk bootstrap' with a recent version of the CDK CLI." } ] } }