0.27.0

Added

• Apache HttpAsyncClient instrumentation #809
• Twilio SDK Instrumentation #775 - Thanks @darylrobbins
• Update Ratpack instrumentation and enable it by default #797
• Hystrix instrumentation extended to include tracing for HystrixObservableCommand #811
• Set default value for dd.trace.partial.flush.min.spans to 1k spans #804
• Possibility to exclude classes from transformation based on config parameter #807

Fixed

• Have Cassandra integration work with recent versions of Guava #786
• Improve compatibility when instrumenting cglib generated proxy classes #795
• Automatically apply OSGi bootloader delegation settings for felix and other frameworks #803
• Only add frames if class file version supports attribute #814 - Thanks @raphw
• Fix log message when a error occurs during trace flushing #784 - Thanks @msysyamamoto

Changed

• Upgrade Byte Buddy to 1.9.12 -- Improves compatibility with Java 12 applications #812
• Log JMXFetch tracing info at info level instead of error level #796
• Replace hostname/port pair with peer name in server tags #798
• Rebrand priority sampling to manual keep/drop #805
• Make context fields transitive to avoid unintentional serialization #816