New since the Preview.6 release:

Breaking Changes:

Enhancements:

Supported boolean JMX metrics (#1235)
Added support for JMX metrics environment variable APPLICATIONINSIGHTS_JMX_METRICS
Added two default JMX metrics for thread count and class count
Changed default logging capture from WARN to INFO
Added support for logging capture environment variable APPLICATIONINSIGHTS_LOGGING_THRESHOLD
Added support for sampling percentage environment variable APPLICATIONINSIGHTS_SAMPLING_PERCENTAGE
Added auto-collection for 2.x SDK trackTrace, trackRequest and trackException
Added capturing MDC logging properties
Added support for Jetty Native Handler

Fixed JMX metrics which aren't available initially are never recorded (#1233)
Fixed capturing JMX metrics inside of CompositeData (#952)
Fixed HTTP request header to use X-Forwarded-For as Client IP when present (#404)
Fixed URLs with spaces (#1290)