- Fix a bug that would not capture request bodies if they were empty JSON arrays, objects or strings.
- New GNU backtrace integration parses stacktraces from exception messages and appends them to existing stacktrace.
- Capture Tornado formdata.
- Support Python 3.6 in Sanic and AIOHTTP integration.
- Clear breadcrumbs before starting a new request.
- Fix a bug in the Celery integration that would drop pending events during worker shutdown (particularly an issue when running with `max_tasks_per_child = 1`)
- Fix a bug with `repr`ing locals whose `__repr__` simultaneously changes the WSGI environment or other data that we're also trying to serialize at the same time.