Troposphere

------------------
* SageMaker: Mark tags props as optional, per AWS documentation.
* Add c5a, c6g, and r6g to instance types in constants
* Make flake8 happy again
* AWS::ServiceCatalog::LaunchRoleConstraint.RoleArn not required (1765)
* AWS::DocDB::DBCluster.DeletionProtection (1748)
* AWS::KinesisFirehose::DeliveryStream BufferingHints and CompressionFormat not required in S3DestinationConfigurations (1766)
* AWS::KinesisFirehose::DeliveryStream.ElasticsearchDestinationConfiguration.TypeName not required (1767)
* AWS::StepFunctions::StateMachine DefinitionString and S3Location.Version not required (1768)
* Add AWS::EC2::SecurityGroup.Ingress.SourcePrefixListId to SecurityGroupRule (1762)
* AWS::Elasticsearch::Domain.AdvancedSecurityOptions (1775)
* AWS::Glue::Connection.ConnectionInput.ConnectionType AllowedValues expansion (1777)
* Add additional properties to KinesisEvent
* Change OnFailure and OnSuccess as not required per CloudFormation reference
* Add AWS::Serverless::Api's Domain
* Support for OpenApiVersion in serverless.Api
* add efs backupPolicy
* Fix some flake8 errors
* Add ECS Fargate EFS mounting capability
* Add new instance types to constants
* Added SSM Parameter examples (1770)
* Update SecretsManager per 2020-07-23 update and alphabetize cleanups
* Update SageMaker::EndpointConfig per 2020-07-23 update
* Update CodeStarConnections::Connection per 2020-07-23 update
* Update CloudFront::Distribution per 2020-07-23 update
* Add ECR ImageScanningConfiguration and ImageTagMutability (Fixes 1544)
* AWS::EKS::Nodegroup.LaunchTemplate (1780)
* AWS::SecretsManager::RotationSchedule.RotationLambdaARN not required (1783)
* Fix capitalization in AwsVpcConfiguration (1788)
* AWS::StepFunctions::StateMachine.TracingConfiguration (1795)
* AppMesh Gateway support (1758)
* fixing tags data type (1785)
* Added Types to EndpointConfiguration (1793)
* update TargetGroup.TargetType to support Ref values (1794)
* Run tests against Python 3.9 (1790)
* Cloudfront cache and origin policy (1796)
* Fix typo AWSOject => AWSObject
* Remove list for Tags attribute
* Remove trailing blank line from serverless.py
* Update CodeGuruProfiler per 2020-07-30
* Add Mtu to GroundStation::DataflowEndpoint per 2020-07-30 changes
* Update EC2::FlowLog per 2020-07-30 changes
* Add AutoImportPolicy to FSx::LustreConfiguration per 2020-08-06
* Add BuildBatchConfig to CodeBuild::Project per 2020-08-06 changes
* Revert "Fix capitalization in AwsVpcConfiguration (1788)" (1798)
* Add EC2::CarrierGateway per 2020-08-13 changes
* Add new ApplicationInsights::Application per 2020-08-13 changes
* Tweaks to the gen.py script
* Add SageMaker::MonitoringSchedule from 2020-08-13 changes
* Add SecurityPolicy to Transfer::Server from 2020-08-13 changes
* Add Topics to Lambda::EventSourceMapping from 2020-08-13 changes
* Add DriveCacheType to FSx LustreConfiguration from 2020-08-13 changes
* Add EnvironmentFiles to ECS::TaskDefinition from 2020-08-13 changes
* Update Route53Resolver per 2020-08-27 changes
* Update GameLift resources per 2020-08-27
* Update ServiceCatalog per 2020-08-27 changes
* Update CodeCommit per 2020-08-31 changes
* Add EKS::FargateProfile per 2020-09-03 changes
* Add AWS::CodeGuruReviewer per 2020-09-03 changes
* Add CloudFront::RealtimeLogConfig per 2020-09-03 changes
* Add AWS::Kendra per 2020-09-10 changes
* Add AWS::SSO per 2020-09-10 changes
* Add IoT::Authorizer per 2020-09-10 changes
* Add DeleteReports to CodeBuild::ReportGroup per 2020-09-10 changes
* AWS::Synthetics::Canary.RuntimeVersion AllowedValues expansion (1801)
* Update ApiGatewayV2::Authorizer per 2020-09-10 changes
* Add CloudFormation::StackSet per 2020-09-17 changes
* Add AWS::AppFlow per 2020-09-17 changes
* Add DisableExecuteApiEndpoint to ApiGatewayV2::Api per 2020-09-17 changes
* Add MutualTlsAuthentication to ApiGateway::DomainName per 2020-09-17 changes
* Add MutualTlsAuthentication to ApiGatewayV2::DomainName per 2020-09-17 changes
* AWS::MSK::Cluster.ClientAuthentication.Sasl (1802)
* Add WorkSpaces::ConnectionAlias per 2020-10-01 changes
* Fix formatting in MSK
* Update AWS::Batch per 2020-10-01 changes
* Add CapacityProviderStrategy to ECS::Service per 2020-10-01 changes
* Remove duplicate elasticache NodeGroupConfiguration property (Fixes 1803)
* Add AWS::Timestream per 2020-10-08 changes
* Add AWS::CodeArtifact per 2020-10-08 changes
* Update Backup per 2020-10-08 changes
* Update AmazonMQ per 2020-10-08 changes
* Update EKS per 2020-10-08 changes
* AWS::AutoScaling::AutoScalingGroup.NewInstancesProtectedFromScaleIn (1804)
* Improve grammar on install steps (1800)
* Update DLM to support cross region copy (Fixes 1799)
* Update WAFv2 per 2020-0723 changes (Fixes 1797)
* Update ECR::Repository.ImageScanningConfiguration to output the correct json (Fixes 1791)

------------------
* Add Description property to EC2::TransitGateway (1674)
* Adding AWS::ImageBuilder::Image object, per May 7, 2020 update
* Adding missing AWS::ApiGatewayV2::VpcLink object
* Adding new AWS::SSM::Association property, per May 7, 2020 update
* Update template_generator.py
* Handle list type properties with a function validator (1673)
* Change RegularExpressionList
* Remove Regex object in favour of basestring
* Bug Fixes: wafv2 names not required
* Update instance types in constants
* Add AWS::CodeStarConnections::Connection props, per May 14, 2020 update
* Adding misc AWS::DMS properties, per May 14, 2020 update
* Adding misc AWS::MediaStore::Container properties, per May 14, 2020 update
* updating AWS::ServiceCatalog::CloudFormationProduct properties, per May 14, 2020 update
* Changing AWS::Synthetics::Canary props, per May 14, 2020 update
* Adding misc AWS::GlobalAccelerator objects, per May 14, 2020 update
* Adding new AWS::Macie resources, per May 14, 2020 update
* Add sample Aurora Serverless RDS template
* Fixing misc AWS::ImageBuilder properties
* Updating AWS::StepFunctions::StateMachine props, per May 21, 2020 update
* Update AWS::SSM::Parameter properties, per May 21, 2020 update
* Update AWS::CodeBuild::ReportGroup properties, per May 21, 2020 update
* Fix bools in example output
* Adding hibernation options to LaunchTemplateData
* ExcludedRules are listed directly, not wrapped
* fix syntax
* add OnSuccess
* Update AWS::EFS::AccessPoint per 2020-05-28 changes
* Update AWS::CodeGuruProfiler::ProfilingGroup per 2020-06-03 changes
* Update AWS::EC2::ClientVpnEndpoint per 2020-05-28 changes
* Add DBProxy and DBProxyTargetGroup to AWS::RDS per 2020-06-04 changes
* Add support for ARM and GPU containers for CodeBuild (1699)
* Fix S3Encryptions in Glue EncryptionConfiguration (1725)
* Convert stepfunctions.DefinitionSubstitutions to dict (1726)
* Add GroundStation link (1727)
* Update AWS::ElasticLoadBalancingV2::LoadBalancer per 2020-06-11 changes
* Update AWS::ElastiCache::ReplicationGroup per 2020-06-11 changes
* Update AWS::CloudFront::Distribution per 2020-06-11 changes
* Update AWS::CertificateManager::Certificate per 2020-06-11 changes
* Update AWS::EC2::Volume per 2020-06-11 changes
* Add AWS::IoT::ProvisioningTemplate per 2020-06-04 changes (Fixes 1723)
* Added Serverless::Application and Serverless ApplicationLocation (1549)
* Fix required setting for SageMaker::Model PrimaryContainer (Fixes 1729)
* Added capacity providers
* Update AWS::EFS::FileSystem per 2020-06-16 changes
* Update AWS::Lambda::Function per 2020-06-16 changes
* Update AWS::FMS::Policy per 2020-06-18 changes
* Fix tests and alphabetize properties in ECS
* Update AWS::ServiceDiscovery per 2020-06-22 changes
* This isn't required
* Update AWS::AppMesh per 2020-06-25 changes
* Support attribute Mode for SageMaker Model ContainerDefinition
* Add SourcePrefixListId to the ec2.SecurityGroupIngress validator (Fixes 1739)
* Add ApplicationCloudWatchLoggingOption for KinesisAnalyticsV2 (Fixes 1738)
* Add required TargetGroupName to DBProxyTargetGroup
* Add VpcConfiguration to AWS::KinesisFirehose::DeliveryStream (Fixes 1717)
* Update AWS::Events::Rule per 2020-07-06 changes
* Add AWS::QLDB::Stream per 2020-07-08 update
* Add AWS::CodeGuruProfiler::ProfilingGroup.ComputePlatform per 2020-07-09 update
* Add AWS::CodeBuild::Project Source: BuildStatusConfig per 2020-0709 update
* Add AWS::Athena::DataCatalog per 2020-07-09 update
* Add AWS::EC2::PrefixList per 2020-07-09 update
* Add AWS::ElasticLoadBalancingV2::Listener.AlpnPolicy per 2020-07-09 update
* Update AWS::Synthetics per 2020-07-09 update
* Add AWS::Amplify::App.EnableBranchAutoDeletion per 2020-07-09 update
* Update AWS::FSx::FileSystem.LustreConfiguration per 2020-07-09 update
* Update AWS::Amplify::Domain per 2020-07-09 update

------------------
* Fix README for PyPI upload
* Remove extra PublicAccessBlockConfiguration in s3 (Fixes 1541)
* Added support for ForwardConfig in Listener (1555)
* Fix up a couple of items for ELBv2 from 1555
* Fixing a missimplementation of rules, caused by a bug in the document… (1599)
* fix: include valid postgres capacity configurations (1602)
* adding misc AppMesh properties, per Feb 27 2020 update
* adding misc FSX properties, per Feb 27 2020 update
* Adding new AWS::CloudWatch::CompositeAlarm object, per March 2 2020 update
* Adding new AWS::GroundStation resources, per Feb 27 2020 update
* Add README link for GroundStation (1606)
* Fixup WAFv2 TextTransformations property and required (1607)
* Adding cloudfront OriginGroups properties, per March 5 2020 update
* AWS::EC2::SecurityGroupIngress.SourcePrefixListId (1622)
* adding AWS::Athena::WorkGroup, per March 5 2020 update
* Adding EncryptionConfig props to AWS::EKS::Cluster, per March 5 2020 update (1610)
* adding AWS::CodeStarConnections::Connection, per Marche 5 2020 update
* Adding AWS::Chatbot::SlackChannelConfiguration, per March 5 2020 update
* Fixup recent CodeStarConnections and Chatbot additions
* Fixes to acmpca (1660)
* adding misc Greengrass props, per March 09 2020 update
* adding misc AWS::MSK::Cluster properties, per March 12 2020 update
* Adding MeshOwner prop to misc AppMesh objects, per March 12 2020 update
* Adding new AWS::Cassandra resources, per March 16 2020 update
* Fixup link and comments for AWS::Cassandra (related to 1616)
* Fix several problems in wafv2
* Add IotAnalyticsAction and StepFunctionsAction to IoT TopicRule Actions
* Add missing IoTAnalytics properties, add Datastore object, add test IoTAnalytics example
* Attributes for AddAttributes is a dict
* add secrets manager type to codebuild environment variable types
* Usageplan throttle (2)
* update example to include method as required
* Adding AWS::ResourceGroups::Group resource, per March 19, 2020 update
* Adding AWS::CodeGuruProfiler::ProfilingGroup resource, per March 19, 2020 update
* Fixup links in README.rst
* adding AWS::EC2::ClientVpnEndpoint properties, per March 19, 2020 update
* Adding AWS::DMS::Endpoint props, per March 23, 2020 update
* Adding AWS::AutoScaling::AutoScalingGroup props, per March 26, 2020 update
* Adding misc AWS::ApiGatewayV2::Integration properties, per March 26, 2020 update
* Adding AWS::ServiceCatalog::LaunchRoleConstraint props, per April 2, 2020 update
* Adding AWS::CloudWatch::InsightRule props, per April 2, 2020 update
* Fix new test changes to use TROPO_REAL_BOOL
* Change ApiGateway::RestApi FailOnWarnings from basestring to boolean (Fixes 1655)
* Update SAM Schedule event source spec
* AWS::SecurityHub::Hub Tags uses the wrong format
* Adding AWS::NetworkManager resource, per March 19, 2020 update
* Adding AWS::Detective resources, per March 26, 2020 update
* Adding misc AWS::IoT props, per March 26, 2020 update
* Adding AWS::EC2::Volume props, per March 26, 2020 update
* Adding AWS::FSx::FileSystem properties, per April 2, 2020 update
* Adding misc AWS::Glue properties, per April 16, 2020 update
* Adding new AWS::Synthetics::Canary resource, per April 23, 2020 update
* Adding AWS::ImageBuilder resources, per April 23, 2020 update
* Adding new AWS::CE::CostCategory resource, per April 23, 2020 update
* Fix typo: pros => props
* Update EventSchemas per 2020-04-30 changes
* Update Synthetics per 2020-04-30 changes
* Update Transfer per 2020-04-30 changes

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* Add ProvisionedConcurrencyConfig for AWS::Serverless::Function (1535)
* Add update policy that allows for in place upgrade of ES cluster (1537)
* Add ReportGroup and SourceCredential to CodeBuild
* Add Count property to EC2::Instance ElasticInferenceAccelerator
* Add EC2::GatewayRouteTableAssociation
* Update FSx per 2019-12-19 changes
* Add MaxAllocatedStorage to RDS::DBInstance
* Add Name property to SSM::Document
* Add OpenMonitoring property to MSK::Cluster
* Break out NoDevice property validation (Fixes 1551) (1553)
* Fixed check_required validator error message (1550)
* Add test for check_required (1550)
* Add CloudWatch Alarm TreatMissingData validator (1536)
* Add WAFv2 resources, per Nov 25 2019 update (1545)
* linking AWS::WAFv2 and OpenStack resource types in README (1559)
* Strategy in AWS::EC2::PlacementGroup is not required (1560)
* Combine JSON + YAML example (1561)
* Add CACertificateIdentifier to DBInstance (1557)
* fixing AWS::Serverless documentation link (1562)
* adding new AWS::WAFv2::WebACLAssociation resource, per Jan 16 2020 update (1567)
* adding SyncSource & SyncType props to AWS::SSM::ResourceDataSync, per Jan 16 2020 update (1566)
* adding AWS::EC2::Instance HibernationOptions property, per Jan 16 2020 update (1563)
* Add QueuedTimeoutInMinutes to CodeBuild Project (1540)
* Add WeightedCapacity to AutoScaling::AutoScalingGroup LaunchTemplateOverrides (1565)
* Use correct curl option for compressed downloads
* Update properties in AWS::Serverless::Api's Auth (1568)
* Add new pinpoint properties, per Jan 23 2020 update (1569)
* Add new AWS::RDS::DBCluster VALID_DB_ENGINE_MODES (1573)
* ServiceDiscovery DnsConfig NamespaceId is not required (1575)
* Add missing SecretTargetAttachment TargetTypes (1578)
* Ignore If expression during validation on AutoScalingRollingUpdate min instances (1577)
* adding Tags to Server, per Feb 6 2020 update
* AWS::KinesisAnalyticsV2::Application.RuntimeEnvironment VALID_RUNTIME_ENVIRONMENTS
* adding misc EC2 properties, per Feb 6 2020 update
* adding new Config resources, per 2020 Feb 13 update
* adding new Transfer properties, per 2020 Feb 13 update
* adding new ACMPCA resources, per Jan 23 2020 update (1570)
* adding new AppConfig resource, per Jan 23 2020 update (1571)
* Nodegroup tags type (1576)
* adding XrayEnabled prop to GraphQLApi, per Feb 6 2020 update (1579)
* adding AccountRecoverySetting prop to UserPool, per Feb 6 2020 update (1580)
* adding Tags to Server, per Feb 6 2020 update (1581)
* Merge pull request 1582 from axelpavageau/feature/20200206-ec2
* Merge pull request 1584 from cloudtools/PatMyron-patch-5
* Alphebetize some properties
* Merge pull request 1585 from axelpavageau/feature/20200213-transfer
* Merge pull request 1586 from axelpavageau/feature/20200213-config
* Adding new EC2 resources, per 2020 Feb 13 update (1587)
* Adding new FMS resources, per 2020 Feb 13 update (1588)
* adding misc Lakeformation properties, per Jan 16 2020 update (1589)
* Adding new AWS::Neptune::DBCluster properties, per Feb 18 2020 update (1594)
* fixing property according to the documentation's example (1595)
* adding UsernameConfiguration prop to UserPool, per Feb 20 2020 update (1596)
* Adding new ProjectFileSystemLocation property to CodeBuild::Project, per Feb 20 2020 update (1597)

------------------
* Switch to using the gzip version of the Resource Specification
* Amend RefreshTokenValidity to match Cognito changes. (1498)
* Update placement object (1501)
* Add hyperlinks to AWS resource types (1499)
* Added missing CrawlerName field to Glue Action and Condition objects (1500)
* Fix multiple mappings being overwritten (1041)
* Cognito is missing UserPoolResourceServer (1509)
* Add EnabledMfas to cognito UserPool Object. (1507)
* Cognito EnabledMfa needs to be a list of strings (1511)
* Make Python 3.8 support official (1513)
* Added missing rds scaling configuration capacity (1514)
* Add AllocationStrategy parameter for AWS::Batch::ComputeEnvironment ComputeResources (1515)
* Add SelfManagedActiveDirectoryConfiguration property to fsx (1516)
* Add logging capability to EKS Cloudwatch (1512)
* Fix some flake8 breakage due to recent commits
* Output the resource specification version after downloading
* Add EventBus class in events script (1518)
* Add new EC2 resources per 2019-10-03 update
* Add new cognito resources per 2019-10-03 update
* Add PlannedBudgetLimits to Budgets::Budget BudgetData
* Add AWS::Pinpoint
* Adding missing property for guardduty FindingPublishing (1517)
* Support for API Gateway SecurityPolicy (1521)
* Add AWS::GameLift
* Update AppStream per 2019-11-07 update
* Add AWS::CodeStarNotifications and AWS::MediaConvert
* Update AppMesh per 2019-11-04 update
* Add DynamoDBTargets and CatalogTargets to Glue::Crawler
* Update ApiGateway resources per 2019-11-31 changes
* Add Tags to CodePipeline CustomActionType and Pipeline
* Updates to Amplify per 2019-10-31 changes
* Update Events per 2019-11-31 changes
* Add InferenceAccelerator to ECS::TaskDefinitiion per 2019-10-31 change
* Add LogPublishingOptions to Elasticsearch::Domain
* Add Tags to SNS::Topic per 2019-11-31 changes
* Add WAF Action Type validator (1524)
* Adding AWS::EKS::Nodegroup resource, per Nov 18 2019 update (1529)
* Adding CpuOptions support for LaunchTemplateData (1531)
* Update AppSync per 2019-11-21 changes
* Update SNS per 2019-11-21 changes
* Update OpsWorksCM per 2019-11-21 changes
* Update IAM per 2019-11-21 changes
* Update Glue per 2019-11-21 changes
* Update Elasticsearch per 2019-11-21 changes
* Update EC2 per 2019-11-21 changes
* Update Cognito per 2019-11-21 changes
* Update ApiGateway per 2019-11-21 changes
* Update RDS per 2019-11-21 changes
* Update ECS per 2019-11-21 changes
* Update CloudWatch per 2019-11-21 changes
* Update ECS per 2019-11-25 changes
* Update per 2019-11 changes
* Update CodePipeline per 2019-11-25 changes
* Add ProvisionedConcurrencyConfiguration for Lambda alias and version (1533)
* Add AWS::EventSchemas
* Add AWS::AccessAnalyzer
* Add S3::AccessPoint per 2019-12-03 update
* Update StepFunctions per 2019-12-03 update
* Update ApiGatewayV2 per 2019-12-04 changes

------------------
* Use double validator instead of a raw float for Double types (1485)
* Add PythonVersion to Glue JobCommand (1486)
* ImageId in EC2 LaunchTemplateData is no longer required (1487)
* Add KmsKeyID prop to AWS::ElastiCache::ReplicationGroup, per 2019 Aug 30 update (1488)
* Add threshold metric to CloudWatch::Alarm (1489)
* Fix naming of parameters in FindInMap helper. (1491)
* Add missing EnableNonSecurity property to SSM Rule (1493)
* Add EnableCloudwatchLogsExports to Neptune::DBCluster
* Update AppMesh::Route properties per 2019-08-29 update
* Add Config::OrganizationConfigRule resource
* Add ZoneAwarenessConfig to Elasticsearch ElasticsearchClusterConfig
* Add AWS::QLDB
* Update RDS resources per 2019-08-29 update
* Travis CI: Add flake8 which is a superset of pycodestyle and pyflakes (1470)
* Run flake8 via "make test" (1470)
* Add SourceVersion to CodeBuild::Project (1495)
* Add new Properties to SSM::Parameter (1496)
* iam: Add Description field to Role (1497)
* Add MaximumBatchingWindowInSeconds to Lambda::EventSourceMapping
* Update Events::Rule EcsParameters per 2019-08-29 changes
* Update ECS::TaskDefinition per 2019-08-29 changes
* Update EC2::Instance per 2019-08-29 changes
* Update DynamoDB::Table per 2019-08-29 changes
* Update ApplicationAutoScaling::ScalableTarget per 2019-08-29 changes
* Update DocDB::DBCluster per 2019-09-26 changes
* Update Glue per 2019-09-26 changes