is a service that learns your gem dependencies, checks for new versions of those gems and sends you email just when they’re released.

All the updates for all gems and repos are in one single email.

You get not only list of gems, but also the link to compare versions, the list of the dependencies and their state (if they are updated or are on the latest stable version) etc.

The notifications can be filtered – turned off for particular gems or repositories just from email. Gems’ updates can also be received as weekly summary.

Gemnasium’s real-time emails look like this and the weekly emails look like this.

With Gemnasium you don’t need to find and follow gems on Github, check all the Github notification if they are someone’s comments or commits.

You get new info as soon as it’s available and there’s no need to check all the time for each of your repositories (e.g. with bundle outdated tool).

Gemnasium receives updates about all the gems directly from RubyGems.org, connects to your account on Github and parses the content of your Gemfile, Gemfile.lock or gemspec files through theGitHub API.

It doesn’t run your code, clone or write to your repos.

Gemnasium is notified about your gem dependencies changes as soon as they happen Your repositories are re-synced daily.

For its payment processing Gemnasium uses Stripe, which stores your payment information in a secure, PCI-compliant environment.