Features:

• Added a service definition for LogstashFormatter
• Added support for configuring flush_on_overflow for the BufferHandler
• Added support for configuring the message format and the usage of ssl for HipchatHandler
• Added support for DIC parameters in channel names in the monolog.channel tag
• Added support for disabling the lazy proxy for the swiftmailer handler
• Added support for Symfony 3.0
• Improved performance when using the swiftmailer handler for requests not sending any email

Bug fixes:

• Removed usage of deprecated APIs to run on Symfony 2.7 without warning
• Fixed the support of multiple mailers when using the spool