What are the various changes between the rails version 2 and 3?
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Answer Posted / Dhananjay Kumar Rai
Some of the notable differences between Rails 2 and 3 include: (1) The use of new file structure, separating models, views, and controllers into different directories, (2) Support for thread safety, (3) Use of .rvm instead of gemsets for managing multiple ruby versions, (4) Deprecation of ActiveRecord's find methods in favor of find_by, where, and first, (5) Introduction of the Asset Pipeline for handling JavaScript, CSS, and images.
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