Sometimes it might be helpful to have a version history for a gem, e.g. when you want to see if there is a newer Rails 2 version of your currently used gem.

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

• Prevents you from data breaches and liability risks
• Upgrade at your own pace
• Works with modern Rubies

Read more Show archive.org snapshot

At first you should search your gem at RubyGems Show archive.org snapshot . Example: will_paginate version history Show archive.org snapshot .

The "Tags" tab at GitHub Show archive.org snapshot might be helpful as well.