• Adding #255 defer ipython import for large import speed improvements (thanks to Eric Prestat)
• Adding testing for Python 3.12
• Fixing #253 merge_update box list merge types not populated to sub dictionaries (thanks to lei wang)
• Fixing #257 Two test failures due to arguments having incorrect types (thanks to Michał Górny)
• Fixing stub files to match latest code signatures
• Removing #251 support for circular references in lists (thanks to d00m514y3r)