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django/docs/releases/4.2.21.txt
nessita 7d80f70988 [5.2.x] Refs #36341 -- Added release notes for 5.1.9 and 4.2.21 for fix in wordwrap template filter.
Revision 1e9db35836d42a3c72f3d1015c2f302eb6fee046 fixed a regression in
55d89e25f4115c5674cdd9b9bcba2bb2bb6d820b, which also needs to be
backported to the stable branches in extended support (5.1.x and 4.2.x).

Backport of c86242d61ff81bddbead115c458c1eb532d43b43 from main.
2025-04-23 17:28:00 -03:00

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===========================
Django 4.2.21 release notes
===========================
*Expected May 7, 2025*
Django 4.2.21 fixes a data loss bug and a regression in 4.2.20.
Bugfixes
========
* Fixed a data corruption possibility in ``file_move_safe()`` when
``allow_overwrite=True``, where leftover content from a previously larger
file could remain after overwriting with a smaller one due to lack of
truncation (:ticket:`36298`).
* Fixed a regression in Django 4.2.20, introduced when fixing
:cve:`2025-26699`, where the :tfilter:`wordwrap` template filter did not
preserve empty lines between paragraphs after wrapping text
(:ticket:`36341`).