---
title: "Ruby 2.6.0 Preview 3 Released"
publication: "Ruby Weekly"
issue: 424
published_at: "2018-11-08"
canonical_url: "https://rubyweekly.com/issues/424"
---

This week's Ruby news, issue 424       

#424 — November 8, 2018 

[Read on the Web](https://rubyweekly.com/issues/424)   

Ruby Weekly 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60/blfrpcgnphcpgbtwbcuk.jpg)](https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released/)  

[Ruby 2.6.0 Preview 3 Released](https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released/) — The next step along the road to the (hopefully) eventual Xmas release of 2.6. The big news here is, as we’ve covered recently, the included initial ipmlementation of a JIT compiler, although overall performance is up slightly too. We also get endless ranges, `then`, and Bundler becoming a default gem. 

Yui Naruse   

[Do You Test Ruby Code for Thread Safety?](https://www.yegor256.com/2018/11/06/ruby-threads.html) — If you don’t, here’s a demonstration of a new gem (called [`threads`](https://github.com/yegor256/threads)) and how it makes thread related testing easier. 

Yegor Bugayenko   [![\](https://copm.s3.amazonaws.com/5f69c20c.png)](https://semaphoreci.com/?utm_source=rubyweekly&utm_medium=email&utm_campaign=rubyweekly-semaphore-2-0-20181108) 

[Semaphore 2.0 Is Now Public](https://semaphoreci.com/?utm_source=rubyweekly&utm_medium=email&utm_campaign=rubyweekly-semaphore-2-0-20181108) — Automate custom continuous delivery pipelines. Autoscale and pay only for what you use. Semaphore 2.0 is built for developer productivity, and it just works. Get $20 free credit and start shipping faster today. 

Semaphore sponsor   

[An Update on Bundler 2.0](https://bundler.io/blog/2018/11/04/an-update-on-bundler-2.html) — In short, Bundler is adopting a support policy that mirrors Ruby core, so if you’re using old versions of Ruby or RubyGems, time to upgrade. TLDR: _“each year, we plan to release a new version of Bundler that drops support for any Ruby that is no longer supported.”_ 

Colby Swandale & André Arko   

[Procsd: Manage Your Processes in Production Hassle-Free with `systemd`](https://github.com/vifreefly/procsd) — Given a `Procfile`, Procsd promises Heroku-like simplicity for process management by creating system services which can be managed (start, stop, status check, etc.) with the `systemd` process manager. 

Victor Afanasev   

[JRuby 9.2.1.0 Released](https://www.jruby.org/2018/11/06/jruby-9-2-1-0.html) — JRuby 9.2.x is the latest major version of JRuby (a Ruby implementation that runs on the Java Virtual Machine) that promises Ruby 2.5 compatibility. 

JRuby Core Team   

▶[Discussing Ruby Testing with Michael Hartl, Creator of 'Rails Tutorial'](http://www.rubytestingpodcast.com/michael-hartl) — Topics covered include deciding what to write tests for and how to decide when to do test-first vs. test-after. 

The Ruby Testing Podcast  

💻 Jobs  

[Ruby on Rails Developer at X-Team (Remote)](https://x-team.com/remote-ruby-on-rails-developer-jobs/?utm_source=cooperpress&utm_medium=email-ad&utm_campaign=ruby) — We help our developers keep learning and growing every day. Unleash your potential. Work from anywhere. [Join X-Team](https://x-team.com/remote-ruby-on-rails-developer-jobs/?utm_source=cooperpress&utm_medium=email-ad&utm_campaign=ruby). 

x-team   

[Full Stack Ruby Engineer (SF; NYC; Victoria, Canada; or Remote)](https://boards.greenhouse.io/juullabs/jobs/1086931) — Become a part of JUUL's software engineering team and help us improve the lives of the world's one billion adult smokers. 

JUUL Labs   

[Join Our Career Marketplace & Get Matched With A Job You Love](https://www.hired.com/ruby) — Through Hired, software engineers have transparency into salary offers, competing opportunities, and job details. 

Hired  

📘 Articles & Tutorials  

[Cross-Language Performance Profile Exploration with Speedscope](https://hacks.mozilla.org/2018/11/cross-language-performance-profile-exploration-with-speedscope/) — Speedscope is a interactive, web-based viewer for large performance profiles, and it supports viewing Ruby profiling info exported from [stackprof](https://github.com/jlfwong/speedscope/wiki/Importing-from-stackprof-%28ruby%29) and [rbspy](https://github.com/jlfwong/speedscope/wiki/Importing-from-rbspy-%28ruby%29). 

Mozilla Hacks   

[Free eBook: Actionable Continuous Delivery Metrics](https://www.gocd.org/ebook-cd-analytics/?utm_campaign=ebook_analytics&utm_medium=newsletter_ad&utm_source=cooperpress_ruby&utm_content=ebook_analytics&utm_term=) — This eBook provides you insight into your CD pipeline & helps you to improve your CD process with metrics. 

GoCD sponsor   

▶[A Grab Bag of Ruby and Ruby on Rails Tricks](https://www.driftingruby.com/episodes/grab-bag-of-ruby-and-ruby-on-rails-tricks) — Covers a variety of Rails development tricks in just 12 minutes. 

Drifting Ruby   

[Git Aliases I Can't Live Without](http://mjk.space/git-aliases-i-cant-live-without/) — A list of handy Git aliases inspired by the oh-my-zsh suite. 

Michal Konarski   

[Migrating from Paperclip to ActiveStorage](https://blog.codeminer42.com/migrating-from-paperclip-to-activestorage-b37ef187fb17) 

Leonardo Negreiros   

▶[Discussing Ruby Performance Profiling with Dan Mayer](https://devchat.tv/ruby-rogues/rr-387-ruby-performance-profiling-with-dan-mayer/) 

Ruby Rogues podcast   

[Why We Use Ruby on Rails to Build GitLab](https://about.gitlab.com/2018/10/29/why-we-use-rails-to-build-gitlab/) — _“It’s worked out really well because the Ruby on Rails ecosystem allows you to shape a lot of functionality at a high quality”_ - CEO of Gitlab 

GitLab  

🔧 Code & Tools  

[Coverband 3: A Production Code Coverage Tool, Now Even Faster](https://www.mayerdan.com/ruby/2018/10/03/coverband-3) — Get deep insight into the production usage of every line of code in your Ruby app to find both dead code and hot spots. 

Dan Mayer   

[Eventide 1.0: Evented, Autonomous Microservices for Everyone](https://medium.com/eventide-project/announcing-eventide-1-0-evented-autonomous-microservices-for-everyone-9804cf4f2dfe) — Eventide supports PostgreSQL and EventStore and looks extremely interesting. 

Scott Bellware   

[Lastpassify: Generate YAML Configuration Files from Lastpass Values](https://asr-custom.umn.edu/2018/10/16/lastpassify-ruby-gem.html) — Lastpassify is a command-line tool that will create config files by reading sensitive values from Lastpass. Interesting idea! 

University of Minnesota   

[Detect Ruby Production Errors in Real-Time, Then Debug Them in Minutes](https://rollbar.com/rubyweekly) 

Rollbar sponsor   

[Asset Sync: Synchronises Assets Between Rails and S3](https://github.com/AssetSync/asset_sync) 

Rumble Labs Ltd.   

[Agoo: A High Performance HTTP Server for Ruby](https://github.com/ohler55/agoo) 

Peter Ohler   

[A 'Awesome' Curated List of Ruby Security Resources](https://github.com/pxlpnk/awesome-ruby-security) — It’s early days for this list of resources, but if you’re asking “How do I make my Ruby app more secure?” it’ll help. 

Andreas Tiefenthaler   

[graphql-smart_select: A Plugin for Graphql-ruby to Select Only The Required Fields](https://github.com/Arkweid/graphql-smart_select) 

Abroskin Alexander         

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