Gallery3:Architecture:Framework documents part of Gallery3 which is in development.
Gallery3 is unstable and not suitable for production.
Features that are present may change or be removed.
Features that are absent may be planned or not.
If you want to participate, join the discussion!
Gallery 3 is written in the kohana framework. Kohana is an implementation of the MVC model, providing infrastructure that allows the Gallery team to concentrate on application code rather than defining and developing system infrastructure.
Currently, Gallery 3 uses kohana 2.3 but both products (G3 and the framework) are undergoing constant development.
Very important: If you are developing G3 code of any kind, verify proper releases so that you avoid upgrade or conversion work.