- added last option
- added format option
- added multiple groups
- added order
- subsequent methods no longer modify relation
- implemented respond_to?
- where, joins, and includes no longer need to be before the group_by method
- Use time zone instead of UTC for results
- Returns entire series by default
- Added day_start option
- Better interface
- Added global time_zone option
- Added global week_start option
- Fixed bug with NULL values and series
- Fixed deprecation warning when used with will_paginate
- Fixed bug with DateTime series
- Added :start option for custom week start for group_by_week
- Fixed series for Rails < 3.2 and MySQL
- First major release