- Python 3.12 is now supported. Older versions of Tornado will work on Python 3.12 but may log deprecation warnings.
- .IOLoop.add_callback_from_signal is suspected to have been broken since Tornado 5.0 and will be removed in version 7.0. Use asyncio.loop.add_signal_handler instead.
- The
client_secret
argument to .OAuth2Mixin.authorize_redirect is deprecated and will be removed in Tornado 7.0. This argument has never been used and other similar methods in this module don't have it. - .TwitterMixin is deprecated and will be removed in the future.
- The
client_secret
argument to .OAuth2Mixin.authorize_redirect is deprecated and will be removed in Tornado 7.0. This argument has never been used and other similar methods in this module don't have it. - .TwitterMixin is deprecated and will be removed in the future.
- Autoreload can now be used when the program is run as a directory rather than a file or module.
- New CLI flag
--until-success
re-runs the program on any failure but stops after the first successful run.
- Fixed reference cycles that could lead to increased memory usage.
- Several methods in this module now simply pass through to their equivalents in the standard library.
- This module now holds a strong reference to all running asyncio.Task objects it creates. This prevents premature garbage collection which could cause warnings like "Task was destroyed but it is pending!".
- .IOLoop.add_callback_from_signal is suspected to have been broken since Tornado 5.0 and will be removed in version 7.0. Use asyncio.loop.add_signal_handler instead.
- The type annotation for .IOLoop.run_in_executor has been updated to match the updated signature of asyncio.loop.run_in_executor.
- Fixed reference cycles that could lead to increased memory usage.
- .format_timestamp now supports "aware" datetime objects.
- The shutdown protocol for .AddThreadSelectorEventLoop now requires the use of asyncio.run or asyncio.loop.shutdown_asyncgens to avoid leaking the thread.
- Introduced .SelectorThread class containing the core functionality of .AddThreadSelectorEventLoop.
- The
close()
method of .AddThreadSelectorEventLoop is now idempotent.
- .StaticFileHandler.get_modified_time now supports "aware" datetime objects and the default implementation now returns aware objects.
- Unclosed client connections now reliably log a warning. Previously the warning was dependent on
garbage collection and whether the
ping_interval
option was used. - The
subprotocols
argument to .WebSocketClientConnection now defaults to None instead of an empty list (which was mutable and reused)