What do you gain from upgrading NHibernate 1.2?

Question

I have one project using NHibernate 1.2. I know it\'s old, but I\'ve used it since I\'m working off NHibernate in Action, which targets that same version.

I\'ve been

Answer 1

v3: Removal of the dependency on log4Net (which is often a love-it or hate-it thing)