Gaeutilities 1.3 release adds has several changes since 1.2.2, and a couple minor changes since 1.3rc1.

ROTModel has been upgraded to do retries on both reads and writes. This is useful for those datastore operations the must succeed for the http request to be successful.

Sessions now takes advantage of the ROTModel for read, but has it’s own memcache writer for puts. If a datastore put fails, it will still store and read the data from memcache. It will also try the write operation on the next request, in order to get the database back in sync. This should allow for session operation, even when the datastore is in a read only mode. However if memcache is also read only, you will experience problems.

Cache has been modified, it will not raise an exception if the datastore put fails, it will just continue and your cache item will exist only in memcache.