WIP: pre-8.4.2 release changelog and doc fixes

CHANGES.rst

@@ -12,12 +12,14 @@ Version 8.4.1
 Released 2026-05-21
 
 -   ``get_parameter_source()`` is available during eager callbacks and type
-    conversion again. :issue:`3458` :issue:`3484`
+    conversion again. :issue:`3458` :pr:`3484`
 -   Zsh completion scripts parse correctly on Windows. :issue:`3277` :pr:`3466`
--   Shell completion of `Choice` `Enum` values produces a valid completion
-    result. :issue:`3015`
--   Fix empty byte-string handling in echo. :issue:`3487`
--   Fix closed file error with `echo_via_pager`. :issue:`3449`
+-   Shell completion of ``Enum`` values used as ``Choice`` options produces a
+    valid completion result. :issue:`3015` :pr:`3471`
+-   Fix empty byte-string handling in echo. :issue:`3487` :pr:`3493`
+-   Fix closed file error with ``echo_via_pager``. :issue:`3449` :pr:`3482`
+-   Fix ``open_url`` on Windows when the file path contains spaces.
+    :issue:`2994` :pr:`3478`
 
 
 Version 8.4.0

docs/conf.py

@@ -31,6 +31,7 @@
 intersphinx_mapping = {
     "python": ("https://docs.python.org/3/", None),
 }
+myst_enable_extensions = ["attrs_block"]
 myst_heading_anchors = 3
 
 # HTML -----------------------------------------------------------------

docs/index.md

@@ -1,4 +1,5 @@
-#
+{.hide-header}
+# Welcome to Click
 
 ```{image} _static/click-name.svg
 :align: center

src/click/_termui_impl.py

@@ -430,8 +430,11 @@ def _pager_contextmanager(
 @contextlib.contextmanager
 def get_pager_file(color: bool | None = None) -> t.Generator[t.TextIO, None, None]:
     """Context manager.
+
     Yields a writable file-like object which can be used as an output pager.
-    .. versionadded:: 8.4
+
+    .. versionadded:: 8.4.0
+
     :param color: controls if the pager supports ANSI colors or not.  The
                   default is autodetection.
     """