v1.6.0

Highlights

• fix cached chart reload for DateField-backed series in timezone-aware mode by normalizing finality comparisons to matching date/datetime types
• add regression tests for DateField cache reload behavior and date-key handling
• fix test compatibility for Python 3.9 by importing patch from unittest.mock directly
• expand CI matrix with Django 5.2/6.0 and Python 3.13 (with unsupported combinations excluded)

Packaging

• bump package version to 1.6.0