From 8.0.0 release and beyond, release notes are published on docs.openstack.org.
##2015-11-25 - 7.0.0 ###Summary
This is a backwards-incompatible major release for OpenStack Liberty.
####Backwards-incompatible changes
- remove kilo deprecated parameters
####Features
- add distribute mode support
- introduce Sahara extended logging class
- remove POSIX file modes
- add tag to package and service resources
- add sahara::config class
- add sahara::db::sync
- add support of SSL
- add an ability to manage use_stderr parameter
- reflect provider change in puppet-openstacklib
- introduce sahara::db class
- db: use postgresql lib class for psycopg package
- add new parameter 'plugins' for Sahara
- configure rpc options separately from ceilometer notifications
####Bugfixes
- rely on autorequire for config resource ordering
- remove Sqlite validation for database_connection
####Maintenance
- initial msync run for all Puppet OpenStack modules
- try to use zuul-cloner to prepare fixtures
- remove class_parameter_defaults puppet-lint check
- acceptance: use common bits from puppet-openstack-integration
##2015-10-10 - 6.1.0 ###Summary
This is a maintenance and features release in the Kilo series.
####Features
- Update parameters for Sahara
####Maintenance
- acceptance: checkout stable/kilo puppet modules
##2015-07-08 - 6.0.0 ###Summary
- Initial release of the puppet-sahara module