The following resources were added: AWS::Backup::BackupPlan,
AWS::Backup::BackupSelection, AWS::Backup::BackupVault,
AWS::PinpointEmail::ConfigurationSet,
AWS::PinpointEmail::ConfigurationSetEventDestination,
AWS::PinpointEmail::DedicatedIpPool, AWS::PinpointEmail::Identity,
AWS::Transfer::Server, AWS::Transfer::User, AWS::WAFRegional::GeoMatchSet,
AWS::WAFRegional::RateBasedRule, and AWS::WAFRegional::RegexPatternSet.

from AWS CloudFormation Release Notes