x-ray and any x-ray related attributes and identifiers will no longer be available in this version of the java agent. The New Relic x-ray feature reached end-of-life on April 17, 2019
Improvements
OkHttp This release adds support for OkHttp 4.0. You will now see OkHttp calls as external calls in New Relic.
Agent configuration settings set via environment variables will be available on the Environment page.
Improves performance of the Java agent.
Fixes
Transaction Traces would occasionally miss segments when using the spring @Async annotation with servlets.
Jax-RS instrumentation was not starting transactions.
A potential race condition during agent startup that would manifest as a NoClassDefFoundError for internal New Relic classes.
Akka-http instrumentation would attempt multiple retransforms of the same class.
The noticeError API would drop custom attributes that weren't of type String, Number, or Boolean, such as an Enum or other custom types.