[Neo-users] [ANNOUNCE] NEO 1.2

[Julien Muchembled]

Hi,

With pleasure we announce the release of NEO 1.2, which is published on pypi as "neoppod":
  http://pypi.python.org/pypi/neoppod

The most important changes in this version are the work about conversion of
databases from/to NEO:

- A new 'Importer' storage backend has been implemented and this is now the
  recommended way to migrate existing Zope databases. See 'importer.conf'
  example file for more information.
- 'neomigrate' command refused to run since version 1.0
- Exported data serials by NEO iterator were wrong. There are still differences
  with FileStorage:
  - NEO always resolves to original serial, to avoid any indirection
    (which slightly speeds up undo at the expense of a more complex pack code)
  - NEO does not make any difference between object deletion and creation undone
    (data serial always null in storage)
  Apart from that, conversion of database back from NEO should be fixed.

Other changes:

- A warning was added in 'neo.conf' about a possible misuse of replicas.
- Compatibility with Python 2.6 has been dropped.
- Support for recent version of SQlite has been added.
- A memory leak has been fixed in replication.
- MySQL backend now fails instead of silently reconnecting if there is any
  pending change, which could cause data loss.
- Optimization and minor bugfixes.

And we forgot to announce NEO 1.1 which was a smaller release:

- Client failed at reconnecting properly to master. It could kill the master
  (during tpc_finish!) or end up with invalid caches (i.e. possible data
  corruption). Now, connection to master is even optional between
  transaction.begin() and tpc_begin, as long as partition table contains
  up-to-date data.
- Compatibility with ZODB 3.9 has been dropped. Only 3.10.x branch is supported.
- checkCurrentSerialInTransaction was not working.
- Optimization and minor bugfixes.

Regards,
The NEO team.