The MEMS Exchange released version 1.5 of Durus today.

Durus is a persistence system for Python objects.

None of the changes should cause any trouble for applications
using the previous version of Durus.

Here are the changes since the 1.4 release.

     * Keep strong references to objects until we decide that they
haven't
       been recently touched.  This limits the impact of the Python
       garbage collector.

     * Change the FileStorage's class as needed to agree with the magic
       header string found in an existing file.  Do this no matter which
       of the constructors (FileStorage, FileStorage1, or FileStorage2)
       is called to create the instance.  Before this change, opening an
       an existing file with the FileStorage2 constructor (instead of
       the generic FileStorage constructor), raised an exception.

     * Adjust logging.

       Before this change, the server logs the class of each object
       when it is loaded if the logginglevel is at level 5 or below.
       This changes that threshhold to level 4.

       Now, when the logging level is 5 or below, the server prints
       a census of objects loaded since the last commit or abort.
       This can make it easier to understand patterns of cache misses.

     * Add dummy new_oid() and get_packer() methods to the Storage class
       for documentation.