- Add support for latest Cloudwatch alarms properties (#694)

- Raise ValueError for Outputs and Mappings - Fix Issue #732 (#733)

- Add AWS::EMR::SecurityConfiguration support (#738)

- Create CODE_OF_CONDUCT.md (#740)

- Added UsagePlans to API Gateway example (#741)

- EMR AutoScaling Complex Validation and Introduction of an ignore validator type (#743)

- Add PrivilegedMode option to CodeBuild Environments (#744)

- EFS DependsOn Ref to object fix (#746)

- README - add syntax highlighting (#747)

- Make handling of DependsOn more pythonic (#748)

- Accept Join type as parameter default value as it returns a string (#752)

- AWS SAM support (#754)

- Fixed UsagePlan example to proper Ref (#755)

- Fix cognito StringAttributeConstraints property names (Fixes #756)

- Add 'SourceAuth' property to CodeBuild Source (#758)

- Make it easier to get at hidden attributes (Fixes #760)

- Size/IOPS should be positive_integers (#761)

- Check that FIFO Queues end with .fifo (#757)

- Add AWS::CloudWatch::Dashboard (Fixes #763)

- Ulimit's HardLimit and SoftLimit validator change (#764)

- Adding EgressOnlyInternetGateway to EC2::Route (#765)

- Allow passing in a dict into DashboardBody (#767)

- Handle SQS QueueName using an AWSHelperFn (Fixes #773)

- LifecycleHook NotificationTargetARN and RoleARN are now optional

- Remove RoleArn from Events::Rule and add to Target property

- Add TracingConfig property to AWS::Lambda::Function

- Add Tags to some RedShift resources

- Add AWS::ApiGateway::DomainName

- Add AWS::EC2::EgressOnlyInternetGateway

- Add AWS::EMR::InstanceFleetConfig

- Add BinaryMediaTypes to ApiGateway::RestApi

- Add TargetTrackingScalingPolicyConfiguration

- Add TrailName to CloudTrail::Trail

- Add AlarmConfiguration and TriggerConfigurations

- Add Tags and TimeToLiveSpecification to DynamoDB::Table

- Add RetentionPeriodHours to Kinesis::Stream

- Add ReplicationSourceIdentifier to RDS::DBCluster

- Add LoggingProperties to Redshift::Cluster

- Add AWS Database Migration Service (DMS) support

- Add test target to Makefile

- Make it easier to download the latest CF resource spec

- Added and reverted out of this release:

- Fix pycodestyle issue in tests/test_yaml.py

- Output yaml (to_yaml) using cfn_flip (Fixes #567)

- Special case If during parameter checking (Fixes #772)

- Raise TypeError when a scaler AWSHelperFn is used in a list context (#751)