• Fix unhandled AssertionError in aiohttp integration when unknown resource requested by the user. #400
• Fix NoneType error when using SystemRoute. #410

• Expect trace request context to be of SimpleNamespace type. #385

• Support Python 3.8 and Python 3.9 #259

• Fix Manifest.in file; add CHANGES.rst to the Source Tarball.

• Add support of AWS X-Ray trace id format. #273

• Add context var support for python3.7 aiohttp instrumentation #187
• Single header tracing support #189
• Add retries and batches to transport (thanks @konstantin-stepanov)
• Drop python3.5 support #238
• Use new typing syntax in codebase #237

• More strict typing configuration is used #147
• Fixed bunch of typos in code and docs #151 #153 (thanks @deejay1)
• Added interface for Transport #155 (thanks @deejay1)
• Added create_custom helper for easer tracer configuration #160 (thanks @deejay1)
• Added interface for Sampler #160 (thanks @deejay1)
• Added py.typed marker

• Add more coverage with typing #147
• Breaking change: typo send_inteval => send_interval #144 (thanks @gugu)
• Breaking change: do not append api/v2/spans to the zipkin dress #150

• Add support http.route tag for aiohttp #138
• Make zipkin address builder more permissive #141 (thanks @dsantosfff)

• Breaking change: az.create is coroutine now #114
• Added context manger for tracer object #114
• Added more mypy types #117

• Added new_child helper method #83

After few months of work and beta releases here are basic features:

• Initial release.
• Implemented zipkin v2 protocol with HTTP transport
• Added jaeger support
• Added stackdriver support
• Added aiohttp server support
• Added aiohttp 3.0.0 client tracing support
• Added examples and demos