At time of writing, on the Ruby on Rails download page, they recommend using Ruby 2.0.0 with Rails.
Ruby 2.1.0 was released at the end of December 2013.
Is that recommendation out of date? Do you have any tales of woe or joy about running Rails 4.0 on Ruby 2.1.0?
The current Ruby 2.1 version has some segfault issues with Rails 4.0. Several fixes has already been merged into master thanks to the work of Amman who upgraded GitHub a few weeks ago.
I would suggest to hold off the switch of Ruby 2.1 for now, until Rails 4.1 and the first bugfix version of Ruby 2.1 are both released.
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I`m trying to create a new Rails app, using Ruby v 3.2.0 and Rails 6.0.2, but I get following error. Anyone know how to solve this problem?
Error image
Ruby on Rails 6.0 was released before Ruby 3.2 existed. Therefore, it is not surprising that Ruby on Rails 6.0 does not support running with Ruby 3.2
According to the answers to this question, Ruby on Rails 6.0 should run well on Ruby 2.5–2.7.
I suggest downgrading your Ruby version to the latest 2.7.x version: 2.7.7 was released about two months ago.
But keep in mind that Ruby 2.7 will reach end of life in about two months. Therefore, you might want to consider updating your application to 6.2 or 7.0 soon.
I am in a situation where I need to update several API-connected gems that are no longer supported by my current version of Ruby. (1.9.3) The Rails release notes for Rails version 3.1.1 state that Rails 3.1 requires Ruby 1.8.7 or higher but it's hard to tell if that includes versions of Ruby which might have been updated more recently than the release notes.
Am I good to update to 2.3 on my Rails 3.1.1 app?
Form the release notes of Ruby on Rails 3.2.13:
There is one big thing that is technically a fix but is sort of a feature: Ruby 2.0 support. Big thanks to Prem Sichanugrist for putting that together! Please give your applications a try on Ruby 2.0 and let me know how that goes.
That said: When Rails 3.2.13 was the first version of Rails with Ruby 2.0 support then it is unlikely that the older Rails 3.1.1 version is working with Ruby 2.3.
In other words, can I run Rails 4.1.16 on Ruby 2.4? If not, can I run it on Ruby 2.3?
Based on the CI settings for 4-1-stable, I'd say stick with Ruby 2.3. 2.4.0 isn't on that list, as things stand.
That's not to say that 4.1.16 won't run on Ruby 2.4 - I can't really speak to that - but there's always a possibility that you hit subtle issues, depending on the features you use and the gems that you include. Ruby 2.4 has the Fixnum and Bignum unification, as well as unicode changes - which potentially could have an impact.
FWIW, we have a sizeable, battle-tested application on the 4.1.x branch that works just fine on Ruby 2.3.3.
seems 2.4 should work with rails 4.x
Rails generally stays close to the latest released Ruby version when
it's released:
....
Rails 4 prefers Ruby 2.0 and requires 1.9.3 or newer.
...
http://guides.rubyonrails.org/upgrading_ruby_on_rails.html#ruby-versions
According to Rubygems, Rails 4.1.16 should work with any ruby version higher or equal to 1.9.3. I would recommend testing it extensively in a local environment so you can check for any possible deprecations.
Also, in case you are not, consider using RVM or any other Ruby version manager.
The Rails blog posted recently that the first version of the 4.2 series that officially support Ruby 2.4 is Rails 4.2.8.
I'm looking to upgrade a large application with many gems. It's currently on Ruby 1.9.3p551.
I've heard that I can upgrade to Ruby 2.2 but not any higher.
Is this version of Rails compatible with Ruby 2.2.5, alternatively, how can I find out the highest possible version supported.
Quote from this blog post
Rails 3.2.22 includes all the commits from the 3-2-stable branch. This mean that now Rails 3.2 supports Ruby 2.2.
Since Rails 3.2 doesn't receive bug fixes anymore (only severe security fixes) I would not expect updates to the Rails 3.2 branch that ensure Ruby 2.3 compatibility. Furthermore Rails 3.2 reaches end of life when Rails 5.0 is released (what will be very soon, since 5.0.0.RC1 is already available).
First of all, I think it isn't a prohibited question on StackOverflow since it's a precise question about environment, an objective question. But if it's prohibited, please tell me.
Currently I'm developing a specific project that is using Ruby 1.9.3 and Rails 3.2.3, at the moment we can't upgrade to Rails 4 because the project dependencies.
My question is:
Using Rails 3.2.3, we can upgrade to a newest Ruby version? If so, what version: Ruby 2.0, Ruby 2.1.2 or another one?
Also, I searched on Google and StackOverflow and I don't find a question like that.
Thanks!
The first release of rails that officially support ruby 2.0 was 3.2.13 (see the announcement on the rails blog.
I deployed several applications running 3.2.15-3.2.17 and ruby 2.0 (They've since been upgraded to rails 4) without any problems that I recall.
The recently released 3.2.22 supports ruby 2.2 (announcement)
According to the Travis configuration, Rails 3.2.3 was only tested with Ruby 1.8.7, 1.9.2 and 1.9.3, so it doesn't seem to be a good idea to use a later version of Ruby (but you can always test it yourself.) However, Rails 3.2.3 has some known security vulnerabilities that have been patched in 3.2.19.
On the other hand, the configuration for Rails 3.2.19 does suggest that the developers expect it to work with Ruby 2.0.0. Your project might benefit from investing some effort to see if you can upgrade from Rails 3.2.3 to 3.2.19, and test a combination of that with Ruby 2.0 for your application, if there are new Ruby features that you need and cannot efficiently backport them. Bear in mind that the only recent answer to a similar question warns of 'weird issues' from such a combination. Also consider that the latest Rails 3.2 release notes do not mention Ruby 2.0.