With the release of 9.0 (August 25, 2016), I am finally satisfied with callback query handling. Many styles of dealing with callback query are now possible.

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9.1 (2016-08-26)

• Changed the name pave_callback_query_origin_map() to intercept_callback_query_origin()
• Added include_callback_query_chat_id()

9.0 (2016-08-25)

• I am finally satisfied with callback query handling. Many styles of dealing with callback query are now possible.
• Added a few per_callback_query_*() seeder factories
• Added a few pair producers, e.g. pave_event_space(), pave_callback_query_origin_map()
• Added Bot.Scheduler to schedule internal events
• Invented a standard event format for delegates to create their own events easily
• Improved Mixin framework. Added StandardEventMixin, IdleTerminateMixin, and InterceptCallbackQueryMixin.
• Added CallbackQueryOriginHandler
• Revamped Listener and message capture specifications
• Default retries=3 for urllib3
• Relaxed urllib3>=1.9.1 in setup.py

8.3 (2016-07-17)

• Fixed urllib3==1.9.1 in setup.py

8.2 (2016-07-04)

• Handling of callback query still unsatisfactory, a transitional release
• Changed async version to telepot.aio to avoid collision with async keyword
• Added CallbackQueryCoordinator and CallbackQueryAble to facilitate transparent handling of CallbackQuery
• Added AnswererMixin to give an Answerer instance
• Added Timer to express different timeout behaviors
• Added enable_callback_query parameter to *Handler constructors
• Added default on_timeout method to @openable decorator
• Added IdleTerminate and AbsentCallbackQuery as subclasses of WaitTooLong to distinguish between different timeout situations
• Revamped Listener to handle different timeout requirements
• Added types parameter to per_chat_id()
• By default, per_from_id() and UserHandler reacts to non-callback_query only
• Fixed Bot.download_file()
• Added docstrings for Sphinx generation
• Re-organized examples