Deprecations

This will be the last minor release to support the following versions:

• Python 3.4
• Django 1.8, 1.9 and 1.10
• Flask < 1.0

In addition, as of this release we only supported capturing extended
information on Elasticsearch queries when using keyword arguments with the
elasticsearch-py API. This is in keeping with the
upstream policy (https://elasticsearch-py.readthedocs.io/en/master/api.html#api-documentation)
of positional arguments being unsupported. (#697)

New Features

• Refactored spawning of background threads (#636)
• Added support for aiohttp client and server (#659)
• Added support for tornado web framework (#661)
• Added support for starlette/fastapi (#694)
• Added support for W3C traceparent and tracestate headers (#660)
• Added Django 3.0 and Flask 1.1 to the support matrix (#667)
• Added support for aiopg (#668)
• Use Span ID as parent ID in errors if an error happens inside a span (#669)
• Added experimental support for API Key authentication (#679)

Bug fixes

• introduced workaround to avoid instrumenting twice in rare cases (#708)