- Update to 4.0.1
* Fix regression:
- Don't raise TimeoutError from timeout object that doesn't
enter into async context manager
- Use call_soon() for raising TimeoutError if deadline is
reached on entering into async context manager (#258)
* Make Timeout class available in __all__.
- Release 4.0.0
* Implemented timeout_at(deadline) (#117)
* Supported timeout.deadline and timeout.expired properties.
* Dropped timeout.remaining property: it can be calculated as
timeout.deadline - loop.time()
* Dropped timeout.timeout property that returns a relative
timeout based on the timeout object creation time; the absolute
timeout.deadline should be used instead.
* Added the deadline modification methods: timeout.reject(),
timeout.shift(delay), timeout.update(deadline).
* Deprecated synchronous context manager usage