Release Notes: Enums are now used instead of integers, which removes a lot of validation otherwise needed to make sure people are setting valid levels, encryption, etc. The Encryptor interface was exposed so people can roll their own encryption. Nice features of Junit 4.7 are used, such as expected exception rule. IllegalArgument checks were replaced with the Validate class from commons-lang. Maven is now the build system for the project. NagiosSettingsFactory is used for creating Nagios settings from a properties file.
Release Notes: The core API now has support for triple-DES encryption and non-blocking sender.