DevIL is a fast and lightweight image library that supports the loading and saving of images in almost any graphics format. It also provides some basic image manipulation functionality.

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

The DevIL Image Library For Ruby « Like Dream of Banister Fiend

Rails Long Term Support