Data Access discussed at Xcalia

NHibernate 2.0 arrived. It seems there is no support for LINQ yet, but it is on the roadmap a next major release (2.1).
It seems this blog frequently covers the differences between NHibernate and the Entity Framework:

http://blog.domaindotnet.com/2008/08/24/nhibernate-20-gold-released-must-wait-for-linq-to-nhibernate/
http://blog.domaindotnet.com/2008/06/29/nhibernate-20-goes-beta-1-while-microsoft-linq-to-entities-receives-vote-of-no-confidence-from-many-leading-net-experts-as-unacceptable/
http://blog.domaindotnet.com/2006/09/09/objectrelational-tools-nhibernate-and-microsoft-adonet-entity-framework/

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As described in this article there is a strong need for fetch plans is JPA. Some people, even within the JPA expert group, seem to think there is no need for a specific API for fetch plans, they could be covered by criteria APIs. I personnaly think that a fetch plan is not a criteria [...]

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Versioning of persistent objects is a complex probem. People, mostly in the finance industry, are looking for solutions to this since years (see this post for instance). It seems there are now some solutions emerging, like Envers from RedHat/JBoss.
It is not clear from their web site if Envers supports JPA or only Hibernate, it seems to me it [...]

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New version is released. This is an open source ODBMS, compliant with JDO.
http://www.theserverside.com/news/thread.tss?thread_id=50283.
http://www.jdoinstruments.org/

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You didn’t see any activity on this blog since last June. I first get married beginning of July, then was on vacation in the South of France and then recently moved to the US in the Washington DC area.
I now have Internet at home since yesterday and I’m ready to go on with all these [...]

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From Steve Karlovitz:
SOAs and data management: Understanding the data service layer

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