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

With the 3.0.0 release, NHibernate includes support for LINQ, along with additional features such as:

Along with a long list of bug fixes and improvements, it has several new features including

• A new strongly typed criteria API called QueryOver
• Lazy loading of columns
• Alias delimiting in generated SQL
• Support for DetachedCriteria within IStatelessSession.
• Improved support for LINQ, overcoming the HQL limitations of the previous provider.

Breaking change:

• Upgrading users should be aware that one of the fixes means that null values in dictionaries are no longer silently ignored, which has the potential to break existing application code.