Django 1.2.1 release notes — Django documentation
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Django/docs/2.2.x/releases/1.2.1
Django 1.2.1 release notes
Django 1.2.1 was released almost immediately after 1.2.0 to correct two small bugs: one was in the documentation packaging script, the other was a :ticket:`bug <13560>` that affected datetime form field widgets when localization was enabled.