Features Update default configuration on rule E3012 to no be strict (pull #2103) Add rule E3043 to validate nested stack parameters (pull #2074) CloudFormation Specifications Update CloudFormation specs to 41.0.0 (pull #2111) Add AWS::KMS::ReplicaKey as a Ref/GetAtt for AWS::KMS::Alias.TargetKeyId (pull #2110)