Ruby

We're delighted to announce that Facebook and Heroku have teamed up to bring you the fastest and easiest way to get your own Facebook app up and running in the cloud. Facebook apps have long been a major segment on the Heroku platform. From scrappy ...

Developers with experience in both Java and Ruby web development often ask the question: Why is web app development so complicated in Java, and so much simpler in Ruby, with Rails? There are many ways to answer this question. But importantly, none o...

Programming languages are silos. The libraries, development tools, deployment practices, and even naming schemes associated with one language — say, Ruby — rarely have much carry-over to another language — say, Python, Erlang, Java, or C++.

Professional programmers dedicate their careers to becoming experts in a particular language, making extensive personal investment in learning not...

Visibility and introspection capabilities are critical for managing and debugging real-world applications. But cloud platforms are often lacking when it comes to visibility. The magical black box is great when it "just works," but not so gr...

Node.js has gotten its share of press in the past year, achieving a level of attention some might call hype. Among its touted benefits are performance, high concurrency via a single-threaded event loop, and a parity between client-side and sever-side ...

Ruby 1.9.2 on Bamboo is now the default for new apps created on Heroku. As we said back in April: Ruby 1.9.2 as the new gold standard for production Ruby apps. In 2011, we’ve seen more and more developers move to 1.9.2. It’s fast, stable, and sees...

Super psyched to announce a major new version of Heroku, the Celadon Cedar stack, going into public beta today (previous stacks were Argent Aspen in 2009, and Badious Bamboo in 2010).

Cedar has many new features and updates, but most importantly introduces a new way of thinking about web application architecture and scaling apps...

At Heroku, we’ve been watching the progress of MRI very carefully for a while now; we added support for 1.9.1 nearly a year ago and 1.9.2 more recently, and we’ve seen thousands of apps created and running successfully on the 1.9 series of ...

In December, we rolled out the public beta of a sweet new logging system for Heroku. The new system combines log output from your app’s processes and Heroku’s system components (such as the HTTP router). With all of your logs collated into a singl...

The improved maintenance mode we described last month is now standard for all existing and new apps. This new maintenance mode is faster and much more scalable, particularly for apps with more than fifty dynos. It handles maintenance mode at the HTTP ...

When your app is crashed, out of resources, or misbehaving in some other way, Heroku serves error pages to describe the problem. We also have a single page for platform errors, once known as the ouchie guy (pictured right). While the approach of show...

We’re very excited about the growth of the add-on ecosystem following the launch of the provider program — with dozens of add-ons in various stages of release, our developers have access to a wide variety of functionality for their applicat...