Django 5.1.9 release notes

Expected May 7, 2025

Django 5.1.9 fixes a data loss bug and a regression in 5.1.8.

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 (#36298).

• Fixed a regression in Django 5.1.8, introduced when fixing CVE 2025-26699, where the wordwrap template filter did not preserve empty lines between paragraphs after wrapping text (#36341).