- update to 4.4.0:
* Added the BlockingPortalProvider class to aid with
constructing synchronous counterparts to asynchronous
interfaces that would otherwise require multiple blocking
portals
* Added __slots__ to AsyncResource so that child classes can
use __slots__
* Added the TaskInfo.has_pending_cancellation() method
* Fixed erroneous RuntimeError: called 'started' twice on the
same task status when cancelling a task in a TaskGroup
created with the start() method before the first checkpoint
is reached after calling task_status.started()
* Fixed two bugs with TaskGroup.start() on asyncio: Fixed
erroneous RuntimeError: called 'started' twice on the same
task status when cancelling a task in a TaskGroup created
with the start() method before the first checkpoint is
reached after calling task_status.started() (#706; PR by
Dominik Schwabe) Fixed the entire task group being cancelled
if a TaskGroup.start() call gets cancelled (#685, #710)
* Fixed erroneous RuntimeError: called 'started' twice on the
same task status when cancelling a task in a TaskGroup
created with the start() method before the first checkpoint
is reached after calling task_status.started()
* Fixed the entire task group being cancelled if a
TaskGroup.start() call gets cancelled
* Fixed a race condition that caused crashes when multiple
event loops of the same backend were running in separate
threads and simultaneously attempted to use AnyIO for their
first time
* Fixed cancellation delivery on asyncio incrementing the wrong