Release Notes: This release avoids using undef-s (NULL-s) as a field value, and the cache performance is improved drastically by utilizing weak references.
Release Notes: Name of the project changed from TableMap to Tie::Table. "insert or update" syntax implemented. "select1", "constraint1", "key", and "order" methods added. Documentation updates and many small bugfixes added.
Release Notes: This release adds a small bugfix in the "invalidate_cache" method when called with  param.