Merge branch 'main' into gh-90385/add-pathlib-path-whatsnew-section

Doc/whatsnew/3.12.rst

@@ -95,10 +95,29 @@ Improved Modules
 
 pathlib
 -------
+
 * Add :meth:`~pathlib.Path.walk` for walking the directory trees and generating
   all file or directory names within them, similar to :func:`os.walk`.
   (Contributed by Stanislav Zmiev in :gh:`46227`.)
 
+dis
+---
+
+* Pseudo instruction opcodes (which are used by the compiler but
+  do not appear in executable bytecode) are now exposed in the
+  :mod:`dis` module.
+  :data:`~dis.HAVE_ARGUMENT` is still relevant to real opcodes,
+  but it is not useful for pseudo instrcutions. Use the new
+  :data:`~dis.hasarg` collection instead.
+  (Contributed by Irit Katriel in :gh:`94216`.)
+
+os
+--
+
+* Add :data:`os.PIDFD_NONBLOCK` to open a file descriptor
+  for a process with :func:`os.pidfd_open` in non-blocking mode.
+  (Contributed by Kumar Aditya in :gh:`93312`.)
+
 
 Optimizations
 =============