Notes
- Don't use a pager when running - git logcommand- This would cause Capistrano deploys to hang when a large number of commits were being deployed. Thanks to John Naegle for reporting and fixing this issue! 
- Official support for JRuby 9.0.0.0 - The Ruby agent is now officially fully tested and supported on JRuby 9.0.0.0. 
- Instrumentation for MongoDB 2.1.x - Visibility in your MongoDB queries returns when using version 2.1.0 of the Mongo driver or newer. Thanks to Durran Jordan of MongoDB for contributing the Mongo Monitoring instrumentation! 
- Fix for ArgumentError "invalid byte sequence in UTF-8" - This would come up when trying to parse out the operation from a database query containing characters that would trigger a invalid byte sequence in UTF-8 error. Thanks to Mario Izquierdo for reporting this issue! 
- Improved database metric names for ActiveRecord::Calculations queries - Aggregate metrics recorded for queries made via the ActiveRecord::Calculations module (#count, #sum, #max, etc.) will now be associated with the correct model name, rather than being counted as generic 'select' operations. 
- Allow at_exit handlers to be installed for Rubinius - Rubinius can support the at_exit block used by install_exit_handler. Thanks to Aidan Coyle for reporting and fixing this issue!