I've finished a non-intrusive extension to og (addition of one file, "og-evolve.rb", no original source code touched), which enables automated schema evolution (currently sqlite3 adapter). require 'og' require 'og-evolve' - you can disable the extension by simply removing the "require 'og-evolve'" statement (using "method rename), having the old behaviour back. - functionality: If you add a property to your object, a column is added to the underlying table. If anyone is intrested, I can sent the file via email. [as a protest to the non-existent public code-repository and to non-supporting my efforts on the project-forum (no responses), I've not followed Mr. Moschovitis request to sent him the file] - [depending on the further delays of the next og version, I will possibly extend this extension.] - The preliminary ob-evaluation (started 2 months before) http://lazaridis.com/case/persist/og.html .. -- http://lazaridis.com