- Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at
least one place so as to avoid regressions.
-- Issue #19014: memoryview.cast() is now allowed on zero-length views.
+- Issue #19087: Improve bytearray allocation in order to allow cheap popping
+ of data at the front (slice deletion).
-- Issue #19098: Prevent overflow in the compiler when the recursion limit is set
- absurdly high.
+- Issue #19014: memoryview.cast() is now allowed on zero-length views.
-- Issue #18942: sys._debugmallocstats() output was damaged on Windows.
+- Issue #18690: memoryview is now automatically registered with
+ collections.abc.Sequence
-- Issue #18667: Add missing "HAVE_FCHOWNAT" symbol to posix._have_functions.
+- Issue #19078: memoryview now correctly supports the reversed builtin
+ (Patch by Claudiu Popa)
-- Issue #18368: PyOS_StdioReadline() no longer leaks memory when realloc()
- fails.
+Library
+-------
-- Issue #16741: Fix an error reporting in int().
++- Issue 19158: a rare race in BoundedSemaphore could allow .release() too often.
+
-- Issue #17899: Fix rare file descriptor leak in os.listdir().
+- Issue #18716: Deprecate the formatter module.
-- Issue #18552: Check return value of PyArena_AddPyObject() in
- obj2ast_object().
+- Issue #18037: 2to3 now escapes '\u' and '\U' in native strings.
-- Issue #18560: Fix potential NULL pointer dereference in sum().
+- Issue #17839: base64.decodebytes and base64.encodebytes now accept any
+ object that exports a 1 dimensional array of bytes (this means the same
+ is now also true for base64_codec)
-- Issue #15905: Fix theoretical buffer overflow in handling of sys.argv[0],
- prefix and exec_prefix if the operation system does not obey MAXPATHLEN.
+- Issue #19132: The pprint module now supports compact mode.
-- Issue #18344: Fix potential ref-leaks in _bufferedreader_read_all().
+- Issue #19137: The pprint module now correctly formats instances of set and
+ frozenset subclasses.
-- Issue #17872: Fix a segfault in marshal.load() when input stream returns
- more bytes than requested.
+- Issue #10042: functools.total_ordering now correctly handles
+ NotImplemented being returned by the underlying comparison function (Patch
+ by Katie Miller)
-- Issue #18426: Fix NULL pointer dereference in C extension import when
- PyModule_GetDef() returns an error.
+- Issue #19092: contextlib.ExitStack now correctly reraises exceptions
+ from the __exit__ callbacks of inner context managers (Patch by Hrvoje
+ Nikšić)
-- Issue #18328: Reorder ops in PyThreadState_Delete*() functions. Now the
- tstate is first removed from TLS and then deallocated.
+- Issue #12641: Avoid passing "-mno-cygwin" to the mingw32 compiler, except
+ when necessary. Patch by Oscar Benjamin.
-- Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise
- OverflowError when an argument of %c format is out of range.
+- Issue #5845: In site.py, only load readline history from ~/.python_history
+ if no history has been read already. This avoids double writes to the
+ history file at shutdown.
-- Issue #18137: Detect integer overflow on precision in float.__format__()
- and complex.__format__().
+- Properly initialize all fields of a SSL object after allocation.
-- Issue #18183: Fix various unicode operations on strings with large unicode
- codepoints.
+- Issue #19095: SSLSocket.getpeercert() now raises ValueError when the
+ SSL handshake hasn't been done.
-- Issue #18180: Fix ref leak in _PyImport_GetDynLoadWindows().
+- Issue #4366: Fix building extensions on all platforms when --enable-shared
+ is used.
-- Issue #18038: SyntaxError raised during compilation sources with illegal
- encoding now always contains an encoding name.
+Documentation
+-------------
-- Issue #17644: Fix a crash in str.format when curly braces are used in square
- brackets.
+- Issue #18972: Modernize email examples and use the argparse module in them.
-- Issue #17983: Raise a SyntaxError for a ``global __class__`` statement in a
- class body.
+Build
+-----
-- Issue #17927: Frame objects kept arguments alive if they had been copied into
- a cell, even if the cell was cleared.
+- Issue #19130: Correct PCbuild/readme.txt, Python 3.3 and 3.4 require VS 2010.
-Library
--------
-- Issue 19158: a rare race in BoundedSemaphore could allow .release() too often.
+What's New in Python 3.4.0 Alpha 3?
+===================================
-- Issue #18037: 2to3 now escapes '\u' and '\U' in native strings.
+Release date: 2013-09-29
-- Issue #19137: The pprint module now correctly formats instances of set and
- frozenset subclasses.
-- Issue #19092: contextlib.ExitStack now correctly reraises exceptions
- from the __exit__ callbacks of inner context managers (Patch by Hrvoje
- Nikšić)
-
-- Issue #12641: Avoid passing "-mno-cygwin" to the mingw32 compiler, except
- when necessary. Patch by Oscar Benjamin.
+Core and Builtins
+-----------------
-- Issue #18594: The fast path for collections.Counter() was never taken
- due to an over-restrictive type check. And the fallback path did
- not implement the same algorithm as the pure python code.
+- Issue #18818: The "encodingname" part of PYTHONIOENCODING is now optional.
-- Properly initialize all fields of a SSL object after allocation.
+- Issue #19098: Prevent overflow in the compiler when the recursion limit is set
+ absurdly high.
-- Issue #4366: Fix building extensions on all platforms when --enable-shared
- is used.
+Library
+-------
- Issue #18950: Fix miscellaneous bugs in the sunau module.
Au_read.readframes() now updates current file position and reads correct
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