==========
* bugfix: Only import future for py2. `PR343 <https://github.com/aws/aws-xray-sdk-python/pull/343>`_.
* bugfix: Defensively copy context entities to async thread. `PR340 <https://github.com/aws/aws-xray-sdk-python/pull/340>`_.
* improvement: Added support for IGNORE_ERROR option when context is missing. `PR338 <https://github.com/aws/aws-xray-sdk-python/pull/338>`_.