- update to 5.1:
* Add support for Python 3.12.
- drop python312.patch (upstream)

- add python312.patch to build with python 3.12
* Fix copying of PersistentList and PersistentMapping using copy.copy
* Fix the Python implementation of the PickleCache to be able to
store objects that cannot be weakly referenced.
* Packaging-only release: get manylinux wheel built
* Avoid raising a SystemError: error return without exception
set when loading an object with slots whose jar generates an
* Fix the hashcode of Python TimeStamp objects on 64-bit
Python on Windows. See
* Stop calling gc.collect every time PickleCache.incrgc is
called (every transaction boundary) in pure-Python mode (PyPy).
This means that the reported size of the cache may be wrong
* Stop clearing the dict and slots of objects added to
PickleCache.new_ghost (typically these values are passed to
* Fix __setstate__ interning when state parameter is not a
* Drop use of ctypes for determining maximum integer size, to
increase pure-Python compatibility. See
* Ensure that __slots__ attributes are cleared when a
override __new__. See
* Fix the hashcode of C TimeStamp objects on 64-bit Python 3
* Fixed the Python(/PYPY) implementation TimeStamp.timeTime
* When testing PURE_PYTHON environments under tox, avoid
* Fix manifest and re-upload to fix stray files included in
* Make the Python implementation of Persistent and PickleCache
behave more similarly to the C implementation. In particular,
the Python version can now run the complete ZODB and ZEO test