- Issue #15033: Fix the exit status bug when modules invoked using -m swith,
return the proper failure return value (1). Patch contributed by Jeff Knupp.
+- Issue #15229: An OSError subclass whose __init__ doesn't call back
+ OSError.__init__ could produce incomplete instances, leading to crashes
+ when calling str() on them.
+
+Library
+-------
+
+- Issue #15315: Support VS 2010 in distutils cygwincompiler.
+
+- Issue #15294: Fix a regression in pkgutil.extend_path()'s handling of
+ nested namespace packages.
+
+- Issue #15056: imp.cache_from_source() and source_from_cache() raise
+ NotImplementedError when sys.implementation.cache_tag is set to None.
+
+- Issue #15256: Grammatical mistake in exception raised by imp.find_module().
+
+- Issue #5931: wsgiref environ variable SERVER_SOFTWARE will specify an
+ implementation specific term like Cpython, Jython instead of generic "Python"
+
+- Issue #13248: Remove obsolete argument "max_buffer_size" of BufferedWriter
+ and BufferedRWPair, from the io module.
+
+- Issue #13248: Remove obsolete argument "version" of argparse.ArgumentParser.
+
+- Issue #14814: implement more consistent ordering and sorting behaviour
+ for ipaddress objects
+
+- Issue #14814: ipaddress network objects correctly return NotImplemented
+ when compared to arbitrary objects instead of raising TypeError
+
+- Issue #14990: Correctly fail with SyntaxError on invalid encoding
+ declaration.
+
+- Issue #14814: ipaddress now provides more informative error messages when
+ constructing instances directly (changes permitted during beta due to
+ provisional API status)
+
+- Issue #15247: FileIO now raises an error when given a file descriptor
+ pointing to a directory.
+
+- Issue #15261: Stop os.stat(fd) crashing on Windows when fd not open.
+
+- Issue #15166: Implement imp.get_tag() using sys.implementation.cache_tag.
+
+- Issue #15210: Catch KeyError when imprortlib.__init__ can't find
+ _frozen_importlib in sys.modules, not ImportError.
+
+- Issue #15030: importlib.abc.PyPycLoader now supports the new source size
+ header field in .pyc files.
+
+- Issue #5346: Preserve permissions of mbox, MMDF and Babyl mailbox
+ files on flush().
+
+- Issue #10571: Fix the "--sign" option of distutils' upload command.
+ Patch by Jakub Wilk.
+
+- Issue #9559: If messages were only added, a new file is no longer
+ created and renamed over the old file when flush() is called on an
+ mbox, MMDF or Babyl mailbox.
+
+- Issue 10924: Fixed mksalt() to use a RNG that is suitable for cryptographic
+ purpose.
+
+Extension Modules
+-----------------
+
+- Issue #15194: Update libffi to the 3.0.11 release.
+
+Tools/Demos
+-----------
+
+- Issue #12605: The gdb hooks for debugging CPython (within Tools/gdb) have
+ been enhanced to show information on more C frames relevant to CPython within
+ the "py-bt" and "py-bt-full" commands:
+ * C frames that are waiting on the GIL
+ * C frames that are garbage-collecting
+ * C frames that are due to the invocation of a PyCFunction
+
+Documentation
+-------------
+
+- Issue #15288: Link to the term "loader" in notes in pkgutil about how things
+ won't work as expected in Python 3.3 and mark the requisite functions as
+ "changed" since they will no longer work with modules directly imported by
+ import itself.
+
+- Issue #13557: Clarify effect of giving two different namespaces to exec or
+ execfile().
+
+Tests
+-----
+
++- Issue #15300: Ensure the temporary test working directories are in the same
++ parent folder when running tests in multiprocess mode from a Python build.
++ Patch by Chris Jerdonek.
++
+- Issue #15284: Skip {send,recv}msg tests in test_socket when IPv6 is not
+ enabled. Patch by Brian Brazil.
+
+- Issue #15277: Fix a resource leak in support.py when IPv6 is disabled.
+ Patch by Brian Brazil.
+
+Build
+-----
+
+- Issue #14330: For cross builds, don't use host python, use host search paths
+ for host compiler.
+
+- Issue #15235: Allow Berkley DB versions up to 5.3 to build the dbm module.
+
+- Issue #15268: Search curses.h in /usr/include/ncursesw.
+
+
+What's New in Python 3.3.0 Beta 1?
+==================================
+
+*Release date: 27-Jun-2012*
+
+Core and Builtins
+-----------------
+
+- Fix a (most likely) very rare memory leak when calling main() and not being
+ able to decode a command-line argument.
+
+- Issue #14815: Use Py_ssize_t instead of long for the object hash, to
+ preserve all 64 bits of hash on Win64.
+
- Issue #12268: File readline, readlines and read() or readall() methods
no longer lose data when an underlying read system call is interrupted.
IOError is no longer raised due to a read system call returning EINTR