- A new pickle protocol (protocol 3) is added with explicit support

  for bytes.  This is the default protocol.  It intentionally cannot
  be unpickled by Python 2.x.

- When a pickle	written	by Python 2.x contains an (8-bit) str
  instance, this is now decoded to a (Unicode) str instance.  The
  encoding used to do this defaults to ASCII, but can be overridden
  via two new keyword arguments to the Unpickler class.  Previously
  this would create bytes instances, which is usually wrong: str
  instances are often used to pickle attribute names etc., and text is
  more common than binary data anyway.

1 files changed, 12 insertions, 0 deletions

diff --git a/Misc/NEWS b/Misc/NEWS
index 65643bf..db686cd 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -23,6 +23,18 @@ Extension Modules
 Library
 -------
 
+- A new pickle protocol (protocol 3) is added with explicit support
+  for bytes.  This is the default protocol.  It intentionally cannot
+  be unpickled by Python 2.x.
+
+- When a pickle written by Python 2.x contains an (8-bit) str
+  instance, this is now decoded to a (Unicode) str instance.  The
+  encoding used to do this defaults to ASCII, but can be overridden
+  via two new keyword arguments to the Unpickler class.  Previously
+  this would create bytes instances, which is usually wrong: str
+  instances are often used to pickle attribute names etc., and text is
+  more common than binary data anyway.
+
 - Default to ASCII as the locale.getpreferredencoding, if the POSIX
   system doesn't support CODESET and LANG isn't set or doesn't
   allow deduction of an encoding.