---
title: "This week's Ruby news, issue 213"
publication: "Ruby Weekly"
issue: 213
published_at: "2014-09-18"
canonical_url: "https://rubyweekly.com/issues/213"
---

This week's Ruby news, issue 213

ruby-2.2.0-preview1, a new Rails admin framework, Ruby Security Watch, upgrading from Rails 3.2 to 4.2 + more.[Read this e-mail on the Web](http://rubyweekly.com/issues/213)

Ruby WeeklyIssue 213 — September 18, 2014

ruby-lang.org[Ruby 2.2.0 Preview 1 Released](https://www.ruby-lang.org/en/news/2014/09/18/ruby-2.2.0-preview1-released/)The first formal preview release of Ruby 2.2 is out, including incremental garbage collection (will decrease GC pause times), garbage collection of symbols, updates to core and bundled libraries, and more.


Volt[Volt: A Reactive Web Framework with Ruby for both Server and Client](http://voltframework.com/)If dipping into JavaScript or CoffeeScript gives you the chills, Volt might interest you. It’s a reactive Web framework that uses Ruby both server and client-side (using Opal) with automatically updating DOM elements, etc.


Hakiri[Security Watch: Monitoring Ruby Projects for Vulnerabilities](https://hakiri.io/security-watch)Security Watch lets you look at the most popular open source projects on GitHub to see if they have potential CVE or code vulnerabilities. The goal of the project is to raise security awareness in the Ruby world.


PhusionSponsored[Never worry about your application server again](https://www.phusionpassenger.com/ruby_weekly)Learn how 350,000+ websites use Phusion Passenger to manage their Ruby apps. It keeps your app stable, makes it fast, and keeps your users happy. Spend less time and money on server maintenance, spend more time on growing your business.

[![Phusion\](http://s3.amazonaws.com/nlga/uploads/item/image/25305/125.png)](https://www.phusionpassenger.com/ruby_weekly?utm_source=rubyweekly&utm_medium=email)


Upmin[Upmin Admin: A Newly Open Sourced Admin Framework for Rails](https://www.upmin.com/admin-rails)Starts from as simple as a two line integration, but beyond that every view can be customized and actions can be tied into your existing code.


Avdi Grimm[Boolean Externalities](http://devblog.avdi.org/2014/09/17/boolean-externalities/)A frustrating Ruby debugging experience leads Avdi to ask some questions.


Justin Gordon[Comparing Zeus With Spring on Rails 4.1 and RSpec 3](https://hackhands.com/fast-tests-comparing-zeus-spring-rails-4-1-rspec-3/)Zeus and Spring are both Rails app preloaders (the latter an official part of Rails 4) but how do they compare?


Ken Collins[From Rails 3.2 to 4.2](http://technology.customink.com/blog/2014/09/16/from-rails-3.2-to-4.2/)Ken Collins looks at some of the things to keep in mind when upgrading a Rails app from 3.2 to 4.2 (still in beta). Some good points in the reader comments too.


In brief

Curated by [Peter Cooper](https://twitter.com/peterc) and [Glenn Goodrich](https://twitter.com/ruprict), and published by [Cooperpress](https://cooperpress.com/).
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