The following feed describes important changes in each release of the AWS CloudFormation User Guide after May 2018
When using dynamic references, you can now have CloudFormation use the latest version of an SSM parameter whenever you create or update a stack. You are no longer required to specify a specific version.
StackSets now supports creating or updating stack sets with self-managed permissions from templates that reference macros. For more information about macros, see Using AWS CloudFormation macros to perform custom processing on templates.
You can now use a period as a delimiter in specifying the fully-qualified logical name for a resource contained in a module. For more information, see Referencing resources in a module.
You can now choose to deploy StackSets into Regions sequentially or in parallel. For more information, see Stack set operation options.
Information about the following Input resources was added: InputDeviceSettings.
Information about the following Channel resources was added: AncillarySourceSettings, AudioSelector, AudioSilenceFailoverSettings, AudioTrack, AudioTrackSelection, AutomaticInputFailoverSettings, CdiInputSpecification, EbuTtDestinationSettings, FailoverCondition, FailoverConditionSettings, FeatureActivations, Fmp4HlsSettings, H264ColorSpaceSettings, H264FilterSettings, H265ColorSpaceSettings, H265FilterSettings, H265Settings, Hdr10Settings, InputLossFailoverSettings, Mpeg2FilterSettings, Mpeg2Settings, MultiplexGroupSettings, MultiplexOutputSettings, TemporalFilterSettings, VideoBlackFailoverSettings, WavSettings.
The following paramters were added for 10DLC support: EntityId, TemplateId, OriginationNumber.
In addition to the organization’s management account, delegated administrator accounts can create and manage service-managed stack sets for their organization. For more information, see Register a delegated administrator and Create a stack set with service-managed permissions.
The following resource was updated: AWS::SSO::InstanceAccessControlAttributeConfiguration.
The AWS::ServiceCatalog transform enables Service Catalog users to reference outputs from an existing Service Catalog provisioned product in their CloudFormation template.