On 24 November 2011 06:45, sateesh ch <[email protected]> wrote:
> I developed a rails application using rails 2.3.8 version but now how to
> upgrade this application in rails 3.0 version.

Google for
rails 3 upgrade
and you will get many helpful links (and a few unhelpful ones of course).

Before you start make sure you have full test coverage and that you
are using a version control system (probably git).

Colin

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