---
title: "Django 2.1.12 release notes"
version: 2.2
locale: pl
source: https://docs.djangoproject.com/pl/2.2/releases/2.1.12/
canonical: https://djangodocs.dev/pl/2.2/releases/2.1.12/
---
# Django 2.1.12 release notes

*September 2, 2019*

Django 2.1.12 fixes a regression in 2.1.11.

## Poprawki błędów

- Fixed crash of `KeyTransform()` for
  [`JSONField`](/pl/2.2/ref/contrib/postgres/fields/#django.contrib.postgres.fields.JSONField) and
  [`HStoreField`](/pl/2.2/ref/contrib/postgres/fields/#django.contrib.postgres.fields.HStoreField) when using on
  expressions with params ([#30672](https://code.djangoproject.com/ticket/30672)).