6.0.0:
Require zope.interface 5.0.
Ensure the resolution orders of all fields are consistent and make sense. In particular, Bool fields now correctly implement IBool before IFromUnicode.
Add support for Python 3.8.
Drop support for Python 3.4.
5.0.1:
Fix: add Text.unicode_normalization = 'NFC' as default, because some are persisting schema fields. Setting that attribute only in __init__ breaks loading old objects.
5.0:
Set IDecimal attributes min, max and default as Decimal type instead of Number.
Enable unicode normalization for Text fields. The default is NFC normalization. Valid forms are ‘NFC’, ‘NFKC’, ‘NFD’, and ‘NFKD’. To disable normalization, set unicode_normalization to False or None when calling __init__ of the Text field.
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