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1.6 (unreleased)

  • Test with history-free and history-preserving RelStorage. Note that history-preserving RelStorage requires RelStorage 3.3 or above, and Python 2.7 or Python 3.6 and above. (#30)
  • Add support for Python 3.9.

1.5 (2020-07-28)

  • Fixed incompatibility with ZODB 5.6 (#35)
  • Added support for history-free RelStorage (#28)
  • Support zope.interface >= 5 in tests. (issue 32)

1.4 (2019-08-23)

  • Fail with explanation when opening a Python 2 ZODB with --dry-run on Python 3 (#22)

1.3 (2019-07-30)

  • Support converting sets.Set() objects from ancient Python 2 versions. (issue 23)
  • Convert set objects to builtins.set without relying on ZODB.broken.rebuild. (issue 25)

1.2 (2019-05-09)

  • Enable fallback encodings for Python 3 conversion for old/grown ZODBs using the new command line option --encoding-fallback. (#15)
  • Switch to use argparse as optparse is deprecated.
  • Add ability to run the Python 3 migration with a default encoding for str objects. (#14)
  • Fix updating records that reference a broken interface when the interface's top-level module is missing.
  • Fixed skipping of blob records so that oids in references to blobs are still converted.
  • Add support for Python 3.8a3.
  • Drop support for Python 3.4.

1.1 (2018-10-05)

  • Skip records for ZODB.blob when migrating database to Python 3 to not break references to blobfiles.
  • When migrating databases to Python 3, do not fail when converting attributes containing None.
  • Fix tests on Python 2 with ZODB >= 5.4.0, which now uses pickle protocol 3.
  • Fix is_broken check for old-style class instances.
  • Add support for Python 3.7.
  • Drop PyPy support.

1.0 (2018-02-13)

  • Support Python 2.7 and 3.4, 3.5 and 3.6 and pypy 3. Drop any older version of Python.
  • The option to the select the pickler (--pickler) has been removed. This was only useful if you had extension classes with Python 2.5 or less.
  • Added an option to convert a database to Python 3.

0.5 (2010-10-07)

  • More debug logging shows now the currently processed OID (that is helpful to determine which object misses the factory).
  • Support for missing factories have been improved: an error used to occur if a pickle needed an update and contained a reference to a missing class (not instance of this class). This case is now fixed.
  • Python 2.4 is no longer supported. Please stick to version 0.3 if you need Python 2.4 support.

0.4 (2010-07-14)

  • Add an option to debug broken records.
  • Add an option to skip records.
  • Add an option to use Python unPickler instead of C one. This let you debug records. As well Python unPickler let you update old ExtensionClass records who had a special hack in the past.
  • Broken interfaces are well supported now (if you did alsoProvides with them).

0.3 (2010-02-02)

  • Unplickle and re-pickle the code to rename references to moved classes. This make the script works on database created with older versions of ZODB.
  • If you are working directly with a FileStorage, POSKeyError are reported but non-fatal.
  • Remove superfluous code that tried to prevent commits when no changes happened: ZODB does this all by itself already.

0.2 (2009-06-23)

  • Add option to store the rename rules into a file.
  • Don't commit transactions that have no changes.
  • Load rename rules from entry points zodbupdate.
  • Compatibility with Python 2.4
  • Rename from zodbupgrade to zodbupdate.
  • Add 'verbose' option.
  • Improve logging.
  • Suppress duplicate log messages (e.g. if the same class is missing in multiple objects).
  • Improve the updating process: rewrite pickle opcodes instead of blindly touching a class. This also allows updating pickles that can't be unpickled due to missing classes.

0.1 (2009-06-08)

  • First release.