django/docs/releases/5.1.1.txt

==========================
Django 5.1.1 release notes
==========================

*Expected September 3, 2024*

Django 5.1.1 fixes several bugs in 5.1.

Bugfixes
========

* Fixed a regression in Django 5.1 that caused a crash of ``Window()`` when
  passing an empty sequence to the ``order_by`` parameter, and a crash of
  ``Prefetch()`` for a sliced queryset without ordering (:ticket:`35665`).
Added stub release notes for 5.1.1. 2024-08-07 13:38:36 +00:00			`==========================`
			`Django 5.1.1 release notes`
			`==========================`

			`Expected September 3, 2024`

			`Django 5.1.1 fixes several bugs in 5.1.`

			`Bugfixes`
			`========`

Fixed #35665 -- Fixed a crash when passing an empty order_by to Window. This also caused un-ordered sliced prefetches to crash as they rely on Window. Regression in e16d0c176e9b89628cdec5e58c418378c4a2436a that made OrderByList piggy-back ExpressionList without porting the empty handling that the latter provided. Supporting explicit empty ordering on Window functions and slicing is arguably a foot-gun design due to how backends will return undeterministic results but this is a problem that requires a larger discussion. Refs #35064. Thanks Andrew Backer for the report and Mariusz for the review. 2024-08-09 12:43:20 +00:00			* Fixed a regression in Django 5.1 that caused a crash of ``Window()`` when
			passing an empty sequence to the ``order_by`` parameter, and a crash of
			``Prefetch()`` for a sliced queryset without ordering (:ticket:`35665`).