# Upgrade Django v1.4.x

## Release Highlights

- Django 1.4 was a [long-term support](https://docs.djangoproject.com/en/dev/internals/release-process/#term-Long-term-support-release) release. [Extended support](https://www.djangoproject.com/download/#ft2) ended 2015-10-01.
- Last version to support Python 2.5
- Added support for [timezones](https://docs.djangoproject.com/en/dev/releases/1.4/#support-for-time-zones)
- Added ability to do `SELECT FOR UPDATE` and `bulk_create()`
- Added `prefetch_related()`
- Added `distinct()` to the Django ORM
- Vastly improved password hashing was added
- Admin list filters
- Cookie based sessions
- Support for [in-browser testing frameworks](https://docs.djangoproject.com/en/dev/releases/1.4/#support-for-in-browser-testing-frameworks) like Selenium

Source: https://upgradedjango.com/1.4/