This has been updated in Fedora rawhide.
The Fedora 33 update waits for the successful compose:
https://bodhi.fedoraproject.org/updates/FEDORA-2020-3d34a62850
The updates appear to be ABI compatible, so there is no need for a targeted
rebuild.
Fedora 32 and 31 updates are pending:
https://bodhi.fedoraproject.org/updates/FEDORA-2020-ce74609c79
https://bodhi.fedoraproject.org/updates/FEDORA-2020-85cca90ce8
-------- Forwarded Message --------
Subject: [Python-Dev] [RELEASE] Python 3.9.0rc1 is now available
Date: Tue, 11 Aug 2020 23:48:59 +0200
From: Łukasz Langa <luk...@langa.pl>
To: python-committ...@python.org, python-...@python.org,
python-l...@python.org, python-annou...@python.org
Python 3.9.0 is*almost*ready. This release,*3.9.0rc1*, is the penultimate
release preview. You can get it here:
https://www.python.org/downloads/release/python-390rc1/
Entering the release candidate phase, only reviewed code changes which are clear
bug fixes are allowed between this release candidate and the final release. The
second candidate and the last planned release preview is currently planned for
2020-09-14.
Please keep in mind that this is a preview release and its use
is*not*recommended for production environments.
Calls to action
Core developers: all eyes on the docs now
* Are all*your*changes properly documented?
* Did you notice*other*changes you know of to have insufficient documentation?
Community members
We*strongly encourage*maintainers of third-party Python projects to prepare
their projects for 3.9 compatibility during this phase. As always, report any
issues tothe Python bug tracker <https://bugs.python.org/>.
Installer news
This is the first version of Python to default to the 64-bit installer on
Windows. The installer now also actively disallows installation on Windows 7.
Python 3.9 is incompatible with this unsupported version of Windows.
Major new features of the 3.9 series, compared to 3.8
Some of the new major new features and changes in Python 3.9 are:
* PEP 584 <https://www.python.org/dev/peps/pep-0584/>, Union Operators
in|dict|
* PEP 585 <https://www.python.org/dev/peps/pep-0585/>, Type Hinting Generics
In Standard Collections
* PEP 593 <https://www.python.org/dev/peps/pep-0593/>, Flexible function and
variable annotations
* PEP 602 <https://www.python.org/dev/peps/pep-0602/>, Python adopts a stable
annual release cadence
* PEP 615 <https://www.python.org/dev/peps/pep-0615/>, Support for the IANA
Time Zone Database in the Standard Library
* PEP 616 <https://www.python.org/dev/peps/pep-0616/>, String methods to
remove prefixes and suffixes
* PEP 617 <https://www.python.org/dev/peps/pep-0617/>, New PEG parser for
CPython
* BPO 38379 <https://bugs.python.org/issue38379>, garbage collection does not
block on resurrected objects;
* BPO 38692 <https://bugs.python.org/issue38692>, os.pidfd_open added that
allows process management without races and signals;
* BPO 39926 <https://bugs.python.org/issue39926>, Unicode support updated to
version 13.0.0;
* BPO 1635741 <https://bugs.python.org/issue1635741>, when Python is
initialized multiple times in the same process, it does not leak memory
anymore;
* A number of Python builtins (range, tuple, set, frozenset, list, dict) are
now sped up usingPEP 590
<https://www.python.org/dev/peps/pep-0590>vectorcall;
* A number of Python modules (_abc, audioop, _bz2, _codecs, _contextvars,
_crypt, _functools, _json, _locale, operator, resource, time, _weakref) now
use multiphase initialization as defined byPEP 489
<https://www.python.org/dev/peps/pep-0489/>;
* A number of standard library modules (audioop, ast, grp, _hashlib, pwd,
_posixsubprocess, random, select, struct, termios, zlib) are now using the
stable ABI defined byPEP 384 <https://www.python.org/dev/peps/pep-0384/>.
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