# Changing from Rails1.2.5 to Rails2.1 and also to latest Ruby

**URL:** <https://www.ruby-forum.com/t/changing-from-rails1-2-5-to-rails2-1-and-also-to-latest-ruby/152225>\
**Category:** Rails\
**Created:** [October 31, 2008, 3:38pm UTC](https://www.ruby-forum.com/t/changing-from-rails1-2-5-to-rails2-1-and-also-to-latest-ruby/152225 "2008-10-31T15:38:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sijo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/da6949/32.png) [@sijo](https://www.ruby-forum.com/u/sijo)\
**Post date:** [October 31, 2008, 3:38pm UTC](https://www.ruby-forum.com/t/changing-from-rails1-2-5-to-rails2-1-and-also-to-latest-ruby/152225/1 "2008-10-31T15:38:07Z")

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Hi  
I am using rails 1.2.5 for my application…Now the company has a  
plan to shift to the latest version …So could you please what ever  
things to be noted ?My ruby version is 1.8.6 Also can I shift to rails  
2.0.1 and Ruby 1.9.X (which I hear is more faster than current) Please  
give me a good direction regarding this

Thanks in advance  
Sijo

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**Author:** ![sijo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/da6949/32.png) [@sijo](https://www.ruby-forum.com/u/sijo)\
**Post date:** [October 31, 2008, 3:44pm UTC](https://www.ruby-forum.com/t/changing-from-rails1-2-5-to-rails2-1-and-also-to-latest-ruby/152225/2 "2008-10-31T15:44:44Z")

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On Oct 31, 2:38 pm, Sijo Kg [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Hi  
> I am using rails 1.2.5 for my application…Now the company has a  
> plan to shift to the latest version …So could you please what ever  
> things to be noted ?My ruby version is 1.8.6 Also can I shift to rails  
> 2.0.1 and Ruby 1.9.X (which I hear is more faster than current) Please  
> give me a good direction regarding this

ruby 1.9 is not yet production ready. It is hoped that 1.9.1 (the  
first production ready version of the 1.9.x line ) will be out in  
january ([http://groups.google.com/group/comp.lang.ruby/browse\_thread/](http://groups.google.com/group/comp.lang.ruby/browse_thread/)  
thread/879567bef6f2b37b/7c6c4b56d5146c1a?lnk=raot)  
Rails 2.0 isn’t compatible with it either.

Fred