NHibernate 2.1.0 Beta 1

NHibernate is a .NET port of the excellent Java Hibernate which provides Object/Relational mapping to persist objects in a relational database.

Main features:
- Visual Studio Friendly
- Easily map regular C# or VB.NET object models designed in Visual Studio. No special base classes or attributes needed. Fully supports inheritance, components and enums.
- Fast Development Cycle
- Generates database tables from your domain models. Supports all popular relational databases. Supports the most complex legacy scenarios.
- Tons of Plugins & Tools
- Full Text Search. Cluster-scoped caching with Microsoft Velocity & Memcached. Business validation rules. ReSharper plugin. Castle Active Record. S#arp Architecture. And many more...
- Established Community
- NHibernate is a popular, fast growing ORM with a helpful community of seasoned developers. Used in thousands of commercial and open source projects.

Enhancements
- Bug
- [NH-959] - HQL queries with math operators and aggregates fail
- [NH-1092] - An Aggregate Count(*) on on an Abstract Base Class (Polymorphic) with UniqueResults returns 1 result per subclass when using the table per subclass approach
- [NH-1171] - Named parameters in SQL query are not substituted when query contains comments with apostrophes
- [NH-1182] - Calling session.delete() causes unnecessary update to timestamp before sql:delete
- [NH-1400] - HQL string literals with dots in are tried loaded as types (classes) and fails
- [NH-1427] - XML Comments inside tag cause exception
- [NH-1444] - broken implicit join
- [NH-1487] - schema generation of unique-key with column involved in multiple unique constraints
- [NH-1507] - NHibernate misplaces JOIN conditions when WHERE references their columns and others altoghether
- [NH-1517] - SaveOrUpdateCopy does not call "public LifecycleVeto OnUpdate(ISession s)"
- [NH-1601] - Problems when accessing lists through property
- [NH-1617] - Formulas containing a data type incorrectly have that data type aliased with the outer entity alias
- [NH-1735] - TicksType used as entity version causes exceptions on cache put operation.
- [NH-1789] - A proxy sometimes doesnt call the overriden Equals() method (mapping interface instead class)
- [NH-1801] - Cross join with a where clause where lhs and rhs are different types of associations breaks with the new AST Query Translator
- [NH-1802] - Query Cache does not include filters in QueryKey.ToString
- [NH-1805] - Does ignore on
- [NH-1813] - Not understandable exception message
- Improvement
- [NH-1814] - Autoregister ReservedWords from MetaData
- New Feature
- [NH-188] - Should Table/Column names be quoted automatically?
- Patch
- [NH-1044] - IdBag for component not in XSD
- [NH-1804] - Expiration property of session factory not handled when configured via XML