How to upgrade the cocoapod with the specified version?

Question

My issue is how to install the version of 1.4.0 beta 2. I have been read the CocoaPod website.

https://guides.cocoapods.org/using/getting-started.html#getting-started

I want to update the CocoaPod, as the command in the website.

$ [sudo] gem install cocoapods

As a result, always install version of 1.3.1

I use this command is incorrect.

sudo gem install -n /usr/local/bin cocoapods 1.4.0 beta 2

Then I ask this question.

Answer 1

Use this command.

sudo gem install cocoapods -v 1.4.0.beta.2

You can check if the version you want is in the sources by using this command.

gem search cocoapods --pre