Tim D. wrote in post #961268:
> A concern I have with java which i'd hoped Ruby would solve is class
> versioning. In java we're often confronted by cryptic errors due to
> conflicts in the versions of required libraries. Spring-1.0.0 needs
> commons-1.0.0 but hibernate-1.2.2 wants commons-1.1.0. You select
> commons-1.1.0 because it's the best option you have but the new version
> breaks an interface contract in some minor way and suddenly you've lost
> a week of work!
>
> Does Ruby have a mechanism for avoiding this?

Does bundler do what you want?

http://gembundler.com/

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