Unreleased

Released 2024-11-08

• Drop support for Python 3.8. :pr:`175`
• Remove previously deprecated __version__, receiver_connected, Signal.temporarily_connected_to and WeakNamespace. :pr:`172`
• Skip weakref signal cleanup if the interpreter is shutting down. :issue:`173`

Released 2024-05-06

• Simplify type for _async_wrapper and _sync_wrapper arguments. :pr:`156`

Released 2024-04-28

• Restore identity handling for str and int senders. :pr:`148`
• Fix deprecated blinker.base.WeakNamespace import. :pr:`149`
• Fix deprecated blinker.base.receiver_connected import. :pr:`153`
• Use types from collections.abc instead of typing. :pr:`150`
• Fully specify exported types as reported by pyright. :pr:`152`

Released 2024-04-27

• Deprecate the __version__ attribute. Use feature detection, or importlib.metadata.version("blinker"), instead. :issue:`128`
• Specify that the deprecated temporarily_connected_to will be removed in the next version.
• Show a deprecation warning for the deprecated global receiver_connected signal and specify that it will be removed in the next version.
• Show a deprecation warning for the deprecated WeakNamespace and specify that it will be removed in the next version.
• Greatly simplify how the library uses weakrefs. This is a significant change internally but should not affect any public API. :pr:`144`
• Expose the namespace used by signal() as default_namespace. :pr:`145`

Released 2023-11-01

• Fixed messages printed to standard error about unraisable exceptions during signal cleanup, typically during interpreter shutdown. :pr:`123`
• Allow the Signal set_class to be customised, to allow calling of receivers in registration order. :pr:`116`.
• Drop Python 3.7 and support Python 3.12. :pr:`126`

Released 2023-09-23

• Fix SyncWrapperType and AsyncWrapperType :pr:`108`
• Fixed issue where connected_to would not disconnect the receiver if an instance of BaseException was raised. :pr:`114`

Released 2023-04-12

• Type annotations are not evaluated at runtime. typing-extensions is not a runtime dependency. :pr:`94`

Released 2023-04-09

• Ensure that py.typed is present in the distributions (to enable other projects to use Blinker's typing).
• Require typing-extensions > 4.2 to ensure it includes ParamSpec. :issue:`90`

Released 2023-04-02

• Add a muted context manager to temporarily turn off a signal. :pr:`84`
• int instances with the same value will be treated as the same sender, the same as str instances. :pr:`83`
• Add a send_async method to allow signals to send to coroutine receivers. :pr:`76`
• Update and modernise the project structure to match that used by the Pallets projects. :pr:`77`
• Add an initial set of type hints for the project.

Released 2022-07-17

• Support Python >= 3.7 and PyPy. Python 2, Python < 3.7, and Jython may continue to work, but the next release will make incompatible changes.

Released 2015-07-23

• Verified Python 3.4 support, no changes needed.
• Additional bookkeeping cleanup for non-ANY connections at disconnect time.
• Added Signal._cleanup_bookeeping() to prune stale bookkeeping on demand.

Released 2013-07-03

• The global signal stash behind signal() is now backed by a regular name-to-Signal dictionary. Previously, weak references were held in the mapping and ephermal usage in code like signal('foo').connect(...) could have surprising program behavior depending on import order of modules.
• Namespace is now built on a regular dict. Use WeakNamespace for the older, weak-referencing behavior.
• Signal.connect('text-sender') uses an alterate hashing strategy to avoid sharp edges in text identity.

Released 2011-10-26

• Added Signal.receiver_connected and Signal.receiver_disconnected per-Signal signals.
• Deprecated the global receiver_connected signal.
• Verified Python 3.2 support, no changes needed.

Released 2010-07-21

• Added @signal.connect_via(sender) decorator
• Added signal.connected_to shorthand name for the temporarily_connected_to context manager.

Released 2010-03-28

• Python 3.0 and 3.1 compatibility.

Released 2010-02-26

• Added Signal.temporarily_connected_to context manager.
• Docs! Sphinx docs, project web site.

Released 2010-02-14

• Initial release.
• Extracted from flatland.util.signals.
• Added Python 2.4 compatibility.
• Added nearly functional Python 3.1 compatibility. Everything except connecting to instance methods seems to work.