App Sleeping on Heroku

When talking to Heroku users, a question that frequently comes up is "when do my apps go to sleep, and why?". Though the behavior is documented in Dev Center, we'd like to provide more immediate visibility into the state of your apps at any given moment.

When Do Apps Sleep?

When an app on Heroku has only one web dyno and that dyno doesn't receive any traffic in 1 hour, the dyno goes to sleep.

When someone accesses the app, the dyno manager will automatically wake up the web dyno to run the web process type. This causes a short delay for this first request, but subsequent requests will perform normally.

Apps that have more than 1 web dyno running never go to sleep and...

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Ruby 2.0.0 Now Default on All New Ruby Applications

Heroku provides an opinionated platform in order to help you build better applications. We give you a default version of Ruby to get you started, and give you a way to declare your version for total control. In the past creating an application would give you 1.9.2, starting today the default is 2.0.0.

Ruby 2.0.0 is fast, stable, and works out of the box with Rails 4. Applications running on 2.0.0 will have a longer shelf life than 1.9.3, giving you greater erosion resistance.

Default Behavior

If you have a previously deployed app it will continue to use Ruby 1.9.2, any new applications will run on 2.0.0. Heroku is an erosion resistant platform, which means we will not change a major or...

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Introducing Notification Center

Change is a constant. At Heroku, we often deliver important information to users about changes and events on the platform, their apps and their accounts. We use a variety of media to keep users informed about these changes, including email, Twitter, the changelog and the blog.

To help provide more direct and relevant information, we've added a new feature to Dashboard called Notification Center. We'll be using the Notification Center to keep you informed of important events affecting you and your apps. When new notifications arrive, you'll see a badge in Dashboard's header.

If you log in today, you'll see something that looks like this:

We'll be carefully curating...

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Historical Uptime on Status Site

Until now, Heroku Status has been focused primarily on present platform health - providing current status, uptime for the current month, and recent incident history. Today we're announcing an addition to our status site: a dedicated page to view historical uptime. The new uptime page provides a longer-term perspective on Heroku uptime and incidents - perspective that is critical for transparency and continued trust in the Heroku platform.

The new uptime page covers both the US and Europe regions for visibility into uptime where your apps are hosted. This was a top-requested feature with the recent launch of Heroku's Europe region.

The uptime page displays per-month uptime going...

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Building Apps Efficiently on Heroku

Whether you’re building your initial prototype or running a large scale profitable business, there will be times where you will have questions about building, maintaining, or troubleshooting your application. One of our goals is to help make your business successful by empowering you to build quality software with best practices, clear documentation on a stable erosion-resistant platform. When in doubt, there are several channels here at Heroku available to help you get the support you need.

Getting Started

Brand new to development or just new to Heroku there’s a place for you in the Dev Center. As you’re getting started you likely want to setup your application so you can get better...

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