1. ==========================

  2. Django 2.2.1 release notes

  3. ==========================

  4. 

  5. *May 1, 2019*

  6. 

  7. Django 2.2.1 fixes several bugs in 2.2.

  8. 

  9. Bugfixes

  10. ========

  11. 

  12. * Fixed a regression in Django 2.1 that caused the incorrect quoting of

  13.   database user password when using :djadmin:`dbshell` on Oracle

  14.   (:ticket:`30307`).

  15. 

  16. * Added compatibility for ``psycopg2`` 2.8 (:ticket:`30331`).

  17. 

  18. * Fixed a regression in Django 2.2 that caused a crash when loading the

  19.   template for the technical 500 debug page (:ticket:`30324`).

  20. 

  21. * Fixed crash of ``ordering`` argument in

  22.   :class:`~django.contrib.postgres.aggregates.ArrayAgg` and

  23.   :class:`~django.contrib.postgres.aggregates.StringAgg` when it contains an

  24.   expression with params (:ticket:`30332`).

  25. 

  26. * Fixed a regression in Django 2.2 that caused a single instance fast-delete

  27.   to not set the primary key to ``None`` (:ticket:`30330`).

  28. 

  29. * Prevented :djadmin:`makemigrations` from generating infinite migrations for

  30.   check constraints and partial indexes when ``condition`` contains

  31.   a :class:`~python:range` object (:ticket:`30350`).

  32. 

  33. * Reverted an optimization in Django 2.2 (:ticket:`29725`) that caused the

  34.   inconsistent behavior of ``count()`` and ``exists()`` on a reverse

  35.   many-to-many relationship with a custom manager (:ticket:`30325`).

  36. 

  37. * Fixed a regression in Django 2.2 where

  38.   :class:`~django.core.paginator.Paginator` crashes if ``object_list`` is

  39.   a queryset ordered or aggregated over a nested ``JSONField`` key transform

  40.   (:ticket:`30335`).

  41. 

  42. * Fixed a regression in Django 2.2 where ``IntegerField`` validation of

  43.   database limits crashes if ``limit_value`` attribute in a custom validator is

  44.   callable (:ticket:`30328`).

  45. 

  46. * Fixed a regression in Django 2.2 where

  47.   :class:`~django.contrib.postgres.search.SearchVector` generates SQL that is

  48.   not indexable (:ticket:`30385`).

  49. 

  50. * Fixed a regression in Django 2.2 that caused an exception to be raised when

  51.   a custom error handler could not be imported (:ticket:`30318`).

  52. 

  53. * Relaxed the system check added in Django 2.2 for the admin app's dependencies

  54.   to reallow use of

  55.   :class:`~django.contrib.sessions.middleware.SessionMiddleware` subclasses,

  56.   rather than requiring :mod:`django.contrib.sessions` to be in

  57.   :setting:`INSTALLED_APPS` (:ticket:`30312`).

  58. 

  59. * Increased the default timeout when using ``Watchman`` to 5 seconds to prevent

  60.   falling back to ``StatReloader`` on larger projects and made it customizable

  61.   via the :envvar:`DJANGO_WATCHMAN_TIMEOUT` environment variable

  62.   (:ticket:`30361`).

  63. 

  64. * Fixed a regression in Django 2.2 that caused a crash when migrating

  65.   permissions for proxy models if the target permissions already existed. For

  66.   example, when a permission had been created manually or a model had been

  67.   migrated from concrete to proxy (:ticket:`30351`).

  68. 

  69. * Fixed a regression in Django 2.2 that caused a crash of :djadmin:`runserver`

  70.   when URLConf modules raised exceptions (:ticket:`30323`).

  71. 

  72. * Fixed a regression in Django 2.2 where changes were not reliably detected by

  73.   auto-reloader when using ``StatReloader`` (:ticket:`30323`).

  74. 

  75. * Fixed a migration crash on Oracle and PostgreSQL when adding a check

  76.   constraint with a ``contains``, ``startswith``, or ``endswith`` lookup (or

  77.   their case-insensitive variant) (:ticket:`30408`).

  78. 

  79. * Fixed a migration crash on Oracle and SQLite when adding a check constraint

  80.   with ``condition`` contains ``|`` (``OR``) operator (:ticket:`30412`).
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