- Recovery from failures during stack updates
- API to cancel and roll back an in-progress stack update
- Implementation of new resource types:
- OS::Glance::Image
- OS::Heat::SwiftSignal
- Provides the option to store Wait Condition (and Software Deployment) data in Swift
- OS::Heat::StructuredDeployments
- Groups code for multiple lifecycle events into a single deployment resource
- OS::Heat::SoftwareDeployments
- Provides a way of avoiding circular dependencies when deploying an interdependent cluster of servers
- OS::Heat::SoftwareComponent
- OS::Nova::ServerGroup
- OS::Sahara::NodeGroupTemplate
- OS::Sahara::ClusterTemplate
- Remember the previously-supplied parameters when updating a stack
- Improved scalability
- Improved visibility into trees of nested stacks
