# Ruby 1.9.1

**URL:** <https://www.ruby-forum.com/t/ruby-1-9-1/173253>\
**Category:** Rails\
**Created:** [August 5, 2009, 5:59pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1/173253 "2009-08-05T17:59:13Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rubynewbie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/58f4c7/32.png) [@rubynewbie](https://www.ruby-forum.com/u/rubynewbie)\
**Post date:** [August 5, 2009, 5:59pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1/173253/1 "2009-08-05T17:59:13Z")

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Our company is running Ruby 1.8.6 patch 111. Is it possible to  
install Ruby 1.9.1 on the same machines to test the same application?  
If so what is the recommended strategy for having side-by-side  
installations and how would you specify which version of Ruby and  
Rails that gets started up?

Any insight is greatly appreciated. Thanks, Calvin.

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**Author:** ![rubynewbie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/58f4c7/32.png) [@rubynewbie](https://www.ruby-forum.com/u/rubynewbie)\
**Post date:** [August 5, 2009, 6:36pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1/173253/2 "2009-08-05T18:36:06Z")

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RubyNewbie wrote:

> Our company is running Ruby 1.8.6 patch 111. Is it possible to  
> install Ruby 1.9.1 on the same machines to test the same application?  
> If so what is the recommended strategy for having side-by-side  
> installations and how would you specify which version of Ruby and  
> Rails that gets started up?

On Ubuntu, ruby1.9 comes as a package, with gem1.9 and rake1.9. I have  
not  
used them on the full stack, though.

There are those who use one of the ZenSpider’s gems, IIRC, to change  
between  
ruby distros on the fly. That’s how maintainers keep a long list of them  
and  
cross-test on them all.

Next question: Is Rails 1.9 ready yet?

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<div class="post-metadata">

**Author:** ![rubynewbie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/58f4c7/32.png) [@rubynewbie](https://www.ruby-forum.com/u/rubynewbie)\
**Post date:** [August 5, 2009, 6:59pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1/173253/3 "2009-08-05T18:59:55Z")

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Phlip wrote:  
[…]

> Next question: Is Rails 1.9 ready yet?

You mean Rails 2.3 on Ruby 1.9? That is said to work, but not all  
plugins and gems will (never tried it myself). See  
[http://isitruby19.com](http://isitruby19.com) .

## Best,

Marnen Laibow-Koser  
[http://www.marnen.org](http://www.marnen.org)  
removed\_email\_address@domain.invalid

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<div class="post-metadata">

**Author:** ![rubynewbie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/58f4c7/32.png) [@rubynewbie](https://www.ruby-forum.com/u/rubynewbie)\
**Post date:** [August 6, 2009, 1:06pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1/173253/4 "2009-08-06T13:06:36Z")

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Hi  
Read this thread  
[http://www.ruby-forum.com/topic/189637](http://www.ruby-forum.com/topic/189637)

Sijo

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**Author:** ![rubynewbie](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/58f4c7/32.png) [@rubynewbie](https://www.ruby-forum.com/u/rubynewbie)\
**Post date:** [August 5, 2009, 8:22pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1/173253/5 "2009-08-05T20:22:04Z")

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I use stow to have Ruby 1.8.6, 1.8.7, and 1.9 all on the same machine.  
Only 1 can be used at any one time, and you have to install each gem  
(including rails) separately for each version of Ruby.

Here is a tutorial:  
[http://www.mjwall.com/2008/08/multiple-versions-of-ruby-with-stow/](http://www.mjwall.com/2008/08/multiple-versions-of-ruby-with-stow/)

HTH  
Paul