On behalf of the Python development community and the Python 3.5 release
team, I'm surprised to announce the availability of Python 3.5.0rc4,
also known as Python 3.5.0 Release Candidate 4.
Python 3.5.0 Release Candidate 3 was only released about a day ago.
However: during testing, a major regression was discovered, reported on
the issue tracker as #25027:
http://bugs.python.org/issue25027
Python 3.5 includes some big changes on how Python is built on Windows.
One of those changes resulted in Python processes on Windows exceeding
the maximum number of loadable shared libraries. As a result Windows
builds of Python could no longer run major Python software stacks like
Pandas and Jupyter. Fixing this required non-trivial last-minute changes
to the Windows build--and those changes need testing. We therefore
elected to insert an extra release candidate before the final release,
to get these changes into your hands as soon as possible, so that
Windows users could test these changes.
As with all other Python 3.5 releases to date, this is a preview
release, and its use is not recommended for production settings.
However, users are encouraged to test with Python 3.5.0rc4, /especially/
Windows users who build or make use of numerous external packages.
(Non-Windows users will find little difference between Python 3.5.0rc3
and Python 3.5.0rc4.)
You can find Python 3.5.0rc4 here:
https://www.python.org/downloads/release/python-350rc4/
Windows and Mac users: please read the important platform-specific
"Notes on this release" section near the end of that page.
Please kick the tires,
//arry/
p.s. Special thanks from the Python 3.5 release team to Christoph
Gohlke for the bug report!
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