Re: [LFS Trac] #5831: python-3.14.2

#5831: python-3.14.2
-------------------------+-----------------------
 Reporter:  Bruce Dubbs  |       Owner:  lfs-book
     Type:  enhancement  |      Status:  new
 Priority:  high         |   Milestone:  12.5
Component:  Book         |     Version:  git
 Severity:  normal       |  Resolution:
 Keywords:               |
-------------------------+-----------------------
Comment (by Bruce Dubbs):

 What's New in Python 3.14.2 final?

 *Release date: 2025-12-05*

 Security

 - gh-142145: Remove quadratic behavior in ``xml.minidom`` node ID cache
   clearing.

 - gh-119452: Fix a potential memory denial of service in the
   :mod:`http.server` module. When a malicious user is connected to the CGI
   server on Windows, it could cause an arbitrary amount of memory to be
   allocated. This could have led to symptoms including a
 :exc:`MemoryError`,
   swapping, out of memory (OOM) killed processes or containers, or even
   system crashes.

 Library

 - gh-140797: Revert changes to the undocumented :class:`!re.Scanner`
 class.
   Capturing groups are still allowed for backward compatibility, although
   using them can lead to incorrect result. They will be forbidden in
 future
   Python versions.

 - gh-142206: The resource tracker in the :mod:`multiprocessing` module now
   uses the original communication protocol, as in Python 3.14.0 and below,
   by default. This avoids issues with upgrading Python while it is
 running.
   (Note that such 'in-place' upgrades are not tested.) The tracker remains
   compatible with subprocesses that use new protocol (that is,
 subprocesses
   using Python 3.13.10, 3.14.1 and 3.15).

 - gh-142214: Fix two regressions in :mod:`dataclasses` in Python 3.14.1
   related to annotations.

   * An exception is no longer raised if ``slots=True`` is used and the
     ``__init__`` method does not have an ``__annotate__`` attribute
     (likely because ``init=False`` was used).

   * An exception is no longer raised if annotations are requested on the
     ``__init__`` method and one of the fields is not present in the class
     annotations. This can occur in certain dynamic scenarios.

 Core and Builtins

 - gh-142218: Fix crash when inserting into a split table dictionary with a
   non :class:`str` key that matches an existing key.

 - gh-116738: Fix :mod:`cmath` data race when initializing trigonometric
   tables with subinterpreters.
-- 
Ticket URL: <https://wiki.linuxfromscratch.org/lfs/ticket/5831#comment:5>
LFS Trac <https://wiki.linuxfromscratch.org/lfs/>
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