Telegraf 0.2.1 has been released with several new features and improvements, including support for writing UDP data to InfluxDB, multiple outputs of the same type, and a revised test suite. The release also includes bug fixes and updates to existing plugins, such as NSQ output, Prometheus output, and Jolokia plugin. Additionally, Telegraf now compiles on FreeBSD and allows users to specify outputs as lists, making it easier to manage complex data pipelines.