1 Python 3000 Release Notes
2 =========================
4 Release notes describe unfinished work in particular releases.
6 Please report bugs to http://bugs.python.org/.
9 Version 3.0b1 - Release Date 18-Jun-2008
10 ----------------------------------------
12 Please search the bug tracker for critical issues in Python 3.0.
15 Version 3.0a5 - Release Date 08-May-2008
16 ----------------------------------------
18 Please search the bug tracker for critical issues in Python 3.0.
21 Version 3.0a2 - Release Date 07-Dec-2007
22 ----------------------------------------
24 * The AMD64 Windows installer doesn't contain Tcl/Tk, and hence IDLE
25 won't work. This is because Tcl doesn't compile at all on this
28 * The 32bit build for the Win32/x86 platform is optimized with PGO
29 (profile guided optimization). Please read Microsoft's docs for
31 <http://msdn2.microsoft.com/en-us/library/e7k32f4k(VS.90).aspx>`_
32 if you are interested in details. Preliminary benchmarks have shown
33 a speedup of about 10% in PyBench. Real world applications may gain
36 * The Tools directory contains a copy of the 2to3 conversion tool.
37 Note that 2to3 itself must be run with Python 2.5!
39 * SSL support is back! However, while the tests pass, the SSL code
40 appears to be leaking quite a bit, and there are still bugs.
41 We'll be working on this for the next release.
43 * On Windows, Python can't be run from a directory with non ASCII chars
44 in its path name (`bug #1342 <http://bugs.python.org/issue1342>`_).
46 * On Windows, the module doc server (pydocgui.pyw) is crashing.
48 * On Windows, the menus in IDLE are broken.
50 * The current releases of Cygwin and MinGW can't create extensions for
51 the official Python 3.0 binary. The necessary modifications to
52 Cygwin are already in its CVS. Look out for a new Cygwin release!
54 * Otherwise, the 3.0a1 release notes below still apply, except hashlib
55 no longer requires openssl, and IDLE now seems fine (except on Windows).
58 Version 3.0a1 - Release Date 31-Aug-2007
59 ----------------------------------------
61 * SSL support is disabled. This causes test_ssl to be skipped.
62 The new SSL support in the 2.6 trunk (with server-side support and
63 certificate verification) will be ported for 3.0a2.
65 * If you don't have `openssl <http://www.openssl.org>`_ installed, or
66 a version older than 0.9.7, hashlib is non-functional, which means
67 there is no way to compute MD5 checksums. This breaks some modules.
69 * Platform support is reduced. We've mostly tested on Linux, OSX,
70 and Windows. Solaris is also supported (somewhat).
72 * There may be additional issues on 64-bit architectures.
74 * There are still some open issues on Windows.
76 * Some new features are very fresh, and probably contain bugs: the new
77 format() method on strings (PEP 3101), the strict separation of
78 bytes and strings, the new buffer API (PEP 3118).
80 * IDLE still has some open issues. If you can't run it at all, try
81 "idle -n" which disables the separate subprocess for the