Elastic-apm

New features

* Added `SERVICE_NODE_NAME` config [592]
* Added instrumentation support for [`pymemcache`](https://github.com/pinterest/pymemcache) [#812]
* Added new configuration options `enabled` and `recording` [790]

Bug fixes

* Fixed an issue with metrics collection raising RuntimeErrors [802]
* Fixed an issue with getting extended destination data from pymongo [797]
* Fixed an issue with Tornado instrumentation when Tornado isn't the "main" framework [813]
* Fixed an issue with streaming requests being consumed by the agent even if capture_body is disabled [817]

Pending Deprecations

* Python 2.7 support will be dropped in version 6.0 of the agent.

Bug fixes
* Fixed an issue with Redis using unix domain sockets and destination information (766)

Bug fixes
* Fixed Starlette middleware when capturing request body while the content-type header is absent (763)

Features

* Added destination information to database/HTTP spans, used for service maps (618)

Deprecations

* *Python 3.4 is no longer supported.*

Bug fixes

* fixed a bug in our aiohttp.client support if used with a yarl URL (733)

Bug fixes

* fixed a bug in our celery implementation related to the threading refactor in 5.4.0 (724)