Telegraf 0.2.0 has been released with several new features, including MQTT output, improved scalability through added "jitter" to flush periods, and a new agent configuration option `flush_interval`. The release also includes bug fixes and improvements to the collection interval, debugging, and test output. Additionally, the release notes mention changes to agent configuration values such as `precision` and `utcare`, which have been moved or removed. Telegraf's support for InfluxDB has also been enhanced with new plugins and features. The release is considered a significant update to the data collecting agent, offering improved performance and reliability.