How to update Ruby Version 2 0 0 to the latest version in Mac OSX Yosemite

Question

I need to update my ruby version from 2 0 0 to the latest version  I can not use some gems because my version is not updated  I had used Homebrew to install Ruby some time ago  How can i update my Ruby version

User · Answer

I recommend rbenv  https   github com rbenv rbenv    If this meets your criteria  https   github com rbenv rbenv wiki Why-rbenv       rbenv does            Provide support for specifying application-specific Ruby versions    Let you change the global Ruby version on a per-user basis    Allow you to override the Ruby version with an environment   variable          In contrast with RVM  rbenv does not            Need to be loaded into your shell  Instead  rbenv s shim approach works by adding a directory to your  PATH    Override shell commands like cd or require prompt hacks  That s dangerous and error-prone    Have a configuration file  There s nothing to configure except which version of Ruby you want to use    Install Ruby  You can build and install Ruby yourself  or use ruby-build to automate   the process    Manage gemsets  Bundler is a better way to manage application dependencies  If you have projects that are   not yet using Bundler you can install the   rbenv-gemset plugin    Require changes to Ruby libraries for compatibility  The simplicity of rbenv means as long as it s in your  PATH    nothing   else needs to know about it         INSTALLATION  Install Homebrew http   brew sh  Then      brew update   brew install rbenv    brew install rbenv ruby-build    Add rbenv to bash so that it loads every time you open a terminal echo  if which rbenv    dev null  then eval    rbenv init -    fi        bash profile source    bash profile        UPDATE   There s one additional step after brew install rbenv Run rbenv   init and add one line to  bash profile as it states  After that   reopen your terminal window       SGI Sep 30 at 12 01      https   stackoverflow com users 119770         rbenv install --list Available versions   1 8 5-p113  1 8 5-p114         2 3 1  2 4 0-dev  jruby-1 5 6          rbenv install 2 3 1         Set the global version      rbenv global 2 3 1   ruby -v ruby 2 3 1p112  2016-04-26 revision 54768   x86 64-darwin15    Set the local version of your repo by adding  ruby-version to your repo s root dir      cd   whatevs projects new repo   echo  2 3 1     ruby-version   For MacOS visit this link

User · Answer

brew install rbenv ruby-build Add rbenv to bash so that it loads every time you open a terminal echo  if which rbenv  gt   dev null  then eval  quot   rbenv init -  quot   fi   gt  gt     bash profile source    bash profile Install Ruby rbenv install 2 6 5 rbenv global 2 6 5 ruby -v Link to the source page

User · Answer

You can specify the latest version of ruby by looking at https   www ruby-lang org en downloads    Fetch the latest version   curl -sSL https   get rvm io   bash -s stable --ruby Install it   rvm install 2 2 Use it as default   rvm use 2 2 --default   Or run the latest command from ruby    rvm install ruby --latest rvm use 2 2 --default

User · Answer

Brew only solution  Update   From the comments  kudos to Maksim Luzik   I haven t tested but seems like a more elegant solution      After installing ruby through brew  run following command to update the links to the latest ruby installation  brew link --overwrite ruby   Original answer   Late to the party  but using brew is enough  It s not necessary to install rvm and for me it just complicated things   By brew install ruby you re actually installing the latest  currently v2 4 0   However  your path finds 2 0 0 first  To avoid this just change precedence  source   I did this by changing    profile and setting   export PATH  usr local bin  PATH  After this I found that bundler gem was still using version 2 0 0  just install it again  gem install bundler

User · Answer

Open Terminal   sudo gem update --system    It works

User · Answer

Simplest way is definitely to enter the following command in the terminal    sudo gem update --system   You can add the flag --no-document if you do not want to download the documentation  Here is sample output after running the command    sudo gem update --system Password  Updating rubygems-update Fetching  rubygems-update-2 6 8 gem  100   Successfully installed rubygems-update-2 6 8 Parsing documentation for rubygems-update-2 6 8 Installing ri documentation for rubygems-update-2 6 8 Installing darkfish documentation for rubygems-update-2 6 8 Installing RubyGems 2 6 8 RubyGems 2 6 8 installed Parsing documentation for rubygems-2 6 8 Installing ri documentation for rubygems-2 6 8  ------------------------------------------------------------------------------  RubyGems installed the following executables       System Library Frameworks Ruby framework Versions 2 0 usr bin gem  Ruby Interactive  ri  documentation was installed  ri is kind of like man  pages for ruby libraries  You may access it like this    ri Classname   ri Classname class method   ri Classname instance method

User · Answer

If you are on mac  Use rvm to install your specific version of ruby  See https   owanateamachree medium com how-to-install-ruby-using-ruby-version-manager-rvm-on-macos-mojave-ab53f6d8d4ec Make sure you follow all the steps  This worked for me

User · Answer

Open your terminal and run curl -sSL https   raw githubusercontent com rvm rvm master binscripts rvm-installer   bash -s stable  When this is complete  you need to restart your terminal for the rvm command to work  Now  run rvm list known This shows the list of versions of the ruby  Now  run rvm install ruby latest to get the latest ruby version  If you type ruby -v in the terminal  you should see ruby X X X  If it still shows you ruby 2 0   run rvm use ruby-X X X --default  Prerequisites for windows 10   C compiler  You can use http   www mingw org  make command available otherwise it will complain that  quot bash  make  command not found quot   You can install it by running mingw-get install msys-make Add  quot C  MinGW msys 1 0 bin quot  and  quot C  MinGW bin quot  to your path enviroment variable

User · Answer

In terminal   rvm gemset use global

User · Answer

In case anyone gets the same error I did     Requirements installation failed with status  1     here s what to do   Install Homebrew  for some reason might not work automatically  with this command   ruby -e    curl -fsSL https   raw githubusercontent com Homebrew install master install     Then proceed to install rvm again using  curl -sSL https   get rvm io   bash -s stable --ruby   Quit and reopen Terminal and then   rvm install 2 2 rvm use 2 2 --default

User · Answer

Fast way to upgrade ruby to v2 4   brew upgrade ruby   or  sudo gem update --system

[ruby] How to update Ruby Version 2.0.0 to the latest version in Mac OSX Yosemite?

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