- session.refresh() and session.expire() now support an additional argument
"attribute_names", a list of individual attribute keynames to be refreshed
or expired, allowing partial reloads of attributes on an already-loaded
- instance.
+ instance. [ticket:802]
- Mapped classes may now define __eq__, __hash__, and __nonzero__ methods
- with arbitrary sementics. The orm now handles all mapped instances on
+ with arbitrary semantics. The orm now handles all mapped instances on
an identity-only basis. (e.g. 'is' vs '==') [ticket:676]
- the "properties" accessor on Mapper is removed; it now throws an informative