---
title: "This week's Ruby news, issue 217"
publication: "Ruby Weekly"
issue: 217
published_at: "2014-10-16"
canonical_url: "https://rubyweekly.com/issues/217"
---

This week's Ruby news, issue 217

This week's Ruby and Rails news[Read this e-mail on the Web](http://rubyweekly.com/issues/217)

Ruby WeeklyIssue 217 — October 16, 2014

Michael Hartl[3rd Edition of the Ruby on Rails Tutorial Book Now Out](http://news.railstutorial.org/rails_tutorial_3rd_ed_screencast_access/)The latest edition of Michael Hartl’s popular Rails tutorial book has been released, now covering Rails 4 and using a 100% default stack. And best of all, it’s still possible to [read the whole thing online](https://www.railstutorial.org/book) too.


Ruby Inside[Ruby’s Unary Operators and How to Redefine Their Functionality](http://www.rubyinside.com/rubys-unary-operators-and-how-to-redefine-their-functionality-5610.html)A look at performing some shenanigans with Ruby’s unary - + ~ and similar operators and redefining the methods behind them.


Omniref[Ruby Objects in The Deep C Underworld](https://www.omniref.com/ruby/2.2.0.preview1/symbols/Object?#annotation=4032415=1)A dive through the C internals of Ruby with a focus on how Ruby represents the data for its objects in C.


CodeshipSponsored[Codeship is Continuous Delivery for free.](https://www.codeship.io/?utm_source=RubyWeekly=newsletter=CooperPress)Codeship offers 100 builds/month and 5 private projects free. All startups and small teams now can get started easily with the simplest Continuous Delivery Service out there. Try it now.

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El Passion[Top 5 Talks at Barcelona Ruby Conference 2014](http://blog.elpassion.com/top-5-baruco-talks/)Focusing on Matt Aimonetti, Erik Michaels-Ober, Tom Stuart, Julian Cheal, and Leon Gersing.


WegoWise[A Memcached Trick and an Old Watchdog](http://wegowise.github.io/blog/2014/10/09/a-memcached-trick-and-an-old-watchdog/)A look at fixing an issue with a Memcached setup with a monkey patch, but then also using [Watchdog](https://github.com/wegowise/watchdog) to ensure that monkey patch wouldn’t cause problems later on.


Ruboto.org[Ruboto 1.2.0 Released: The Ruby on Android Development Platform](http://ruboto.org/news/2014/10/13/Ruboto-1.2.0-release-doc.html)The long standing project continues to mature by introducing support for the ART runtime and Android L.


Bruno Bornsztein[Lewsnetter: An E-mail Marketing Application on Rails](https://github.com/bborn/lewsnetter)A Ruby-based system to create and send e-mail newsletters via Amazon’s SES. Includes subscription management, delivery, bounce and complaint notification, templates, and statistics.


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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