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Editorial Team
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Asked: 2026-06-01T02:31:36+00:00

considering the latest version of Entity framework as against NHibernate, is there a reason

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considering the latest version of Entity framework as against NHibernate, is there a reason why I should use NHibernate as opposed to the latest version of Entity framework?

Are there features of Nhibernate that is not covered by current version of Entity framework?

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  1. Editorial Team

    There are tons of posts about differences between NH and EF – do some yourselves research if you want to get complete answer.

    Short version:

    EF 4.1 brings only new way to use EF 4.0 – it means new simplified API called (DbContext) and code mapping. Both these new features are more limited than original EF 4.0.

    EF 4.3 brings code-first migrations for incremental data model development.

    EF 4.5 Beta / EF 5.0 Beta brings support for enums, spatial types, table valued functions, auto compiled queries + performance and API improvements.

    There are a lot of NH’s features which are still not possible in EF

    • More possibilities for complex mapping
    • Custom type mapping
    • Batch command execution
    • Future queries
    • 2nd level cache
    • Extensibility and a lot of ready to use extensions
    • A lot of hooks where you can replace NH’s default implementation with your own or add new logic
    • etc.

    EF has better LINQ support and it is from MS – for many companies this is important decision point. You can check data user voice to see what features are currently requested from ADO.NET team for next releases.

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