JLMARTIN / Cfn-0.12 / Changes 
0.12
  - Documented Cfn::ResourceLoaders
  - Implements the resources in CloudFormation spec 11.1.0 (published as of 2020-02-25)

0.11 2019-12-12
  - Implements the resources in CloudFormation spec 10.0.0 (published as of 2019-12-10)

0.10 2019-10-14
  - Implements the resources in CloudFormation spec 6.3.0 (published as of 2019-10-07)

0.09 2019-09-02
  - Implements the resources in CloudFormation spec 5.3.0 (published as of 2019-09-02)
  - Added region-support information for all resources for ap-east-1, cn-north-1,
    cn-northwest-1, us-gov-east-1, us-gov-west-1 and me-south-1
  - new CLI util: cfn_region_matrix to display a table of what resource types are supported
    in each region
  - new CLI util: cfn_region_compatibility that takes a cloudformation template and calculates
    in what regions it will be deployable
  - new CLI util: cfn_resource_properties that outputs information about a resource type: 
    properties accessible via Fn::GetAtt, Supported regions and it's whole property structure.

0.08 2019-08-06
  - Implements the resources in CloudFormation spec 5.0.0 (published as of 2019-08-06)

0.07 2019-07-10
  - Implements the resources in CloudFormation spec 4.1.0 (published as of 2019-07-02)
  - Fix CPAN testers failures due to missing test dependency (reported by eserte)

0.06 2019-06-19
  - Implements the resources in CloudFormation spec 3.4.0 (published as of 2019-06-19)
  - YAML CloudFormation support. Added from_yaml and as_yaml methods to Cfn.
  - Declare minimum Perl version of 5.16, due to heavy usage of package { } syntax
  - Add parameter types for SSM
    https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html#parameters-section-ssm-examples

0.05 2019-05-15
  - Implements the resources in CloudFormation spec 3.0.0 (published as of 2019-05-15)
  - AWS::Serverless::API resource up to date (not in the spec)

0.04 2019-04-24
  - Implements the resources in CloudFormation spec 2.30.0 (published as of 2019-04-14)

0.03 2019-03-27
  - Implements the resources in CloudFormation spec 2.28.0 (published as of 2019-03-27)
  - Fixed bug in AWS::ServiceDiscovery::Instance Properties: The InstanceAttributes
    Attribute was not declared as a Cfn::Value::Hash
  - New feature: All resource classes get a supported_regions class method with a list
    of the regions where the resource is supported.
  - The AttributeList instance method can now also be called as a class method

0.02 2019-02-27
  - Support for UpdateReplacePolicy 
  - Add AWS::Partion and AWS::URLSuffix as PseudoParameters. They are now recognized as
    Cfn::Value::Function::PseudoParameter
  - Support for returning ArrayRefs and HashRefs from Cfn::DynamicValues. If the values
    returned from a DynamicValue is itself a HashRef or an ArrayRef with DynamicValues 
    too, they will get resolved too.
  - The changes method on Cfn::Diff can be called directly instead of calling ->diff before
  - Implements the resources in CloudFormation spec 2.24.0 (published as of 2019-02-25)
  - Cfn gets a new method resolve_dynamicvalues that returns a new Cfn with all it's
    Cfn::DynamicValues resolved
  - Cfn::Diff by default doesn't dive in to Cfn::DynamicValues. It considers them as changes,
    since the return value of a DynamicValue is not known beforehand.
  - Cfn::Diff gets a new attribute resolve_dynamicvalues that when activated will resolve
    all Cfn::DynamicValues before diffing
  - Cfn::Crawl by default doesn't resolve Dynamic values, but now gets a resolve_dynamicvalues
    attribute to resolve them before crawling

0.01 2019-02-15
  - First release of this module as a separate entity from CloudDeploy.
    This module is the result of isolating the code in the CloudDeploy distribution,
    with the addition of internal updates that we had not released yet.
  - Implements the resource in CloudFormation spec 2.20.0 (published as of 2019-02-15)