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Django 3.0.8 release notes

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*July 1, 2020*

Django 3.0.8 fixes several bugs in 3.0.7.

Bugfixes

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* Fixed messages of ``InvalidCacheKey`` exceptions and ``CacheKeyWarning``

  warnings raised by cache key validation (:ticket:`31654`).

* Fixed a regression in Django 3.0.7 that caused a queryset crash when grouping

  by a many-to-one relationship (:ticket:`31660`).

* Reallowed, following a regression in Django 3.0, non-expressions having a

  ``filterable`` attribute to be used as the right-hand side in queryset

  filters (:ticket:`31664`).

* Fixed a regression in Django 3.0.2 that caused a migration crash on

  PostgreSQL when adding a foreign key to a model with a namespaced

  ``db_table`` (:ticket:`31735`).

* Added compatibility for ``cx_Oracle`` 8 (:ticket:`31751`).