---
title: "Notes de publication de Django 1.4.9"
version: 2.1
locale: fr
source: https://docs.djangoproject.com/fr/2.1/releases/1.4.9/
canonical: https://djangodocs.dev/fr/2.1/releases/1.4.9/
---
# Notes de publication de Django 1.4.9

*October 23, 2013*

Django 1.4.9 fixes a security-related bug in the 1.4 series and one other
data corruption bug.

## Readdressed denial-of-service via password hashers

Django 1.4.8 imposes a 4096-byte limit on passwords in order to mitigate a
denial-of-service attack through submission of bogus but extremely large
passwords. In Django 1.4.9, we’ve reverted this change and instead improved
the speed of our PBKDF2 algorithm by not rehashing the key on every iteration.

## Correction de bogues

- Fixed a data corruption bug with `datetime_safe.datetime.combine` (#21256).