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Ruby 2.6 Released: Just-In-Time Compilation Is Here

The Ruby committers have again continued their annual holiday tradition of gifting us a new Ruby version: Ruby 2.6 was released today, including the long awaited Just-In-Time (JIT) compiler that the Ruby team has been working on for more than a year.

Just-In-Time compilation requires Ruby to spin up a compiler process on startup, and we’re proud to say that this feature is supported today on Heroku thanks to the diligent efforts of our very …

Manage Real-time Event Streams and SQL Analytics with Apache Kafka on Heroku

Building a SaaS product, a system to handle sensor data from an internet-connected thermostat or car, or an e-commerce store often requires handling a large stream of product usage data, or events. Managing event streams lets you view, in near real-time, how users are interacting with your SaaS app or the products on your e-commerce store; this is interesting because it lets you spot anomalies and get immediate data-driven feedback on new features. While this …

Improving the SSO Experience: CLI Login and Certificate Management

We are happy to announce two major improvements to our SSO experience for Heroku Enterprise customers: easier SSO login for users via the Heroku CLI, and the ability for admins to add more than one certificate at the Enterprise Team level.

Logging into all your different cloud applications can be a pain. We know that many of you like to use Heroku via the command line interface and in your web browser side-by-side, and until …

Building Docker Images with heroku.yml Is Generally Available

Last October, we announced the ability for you to deploy pre-built Docker images to Heroku via Container Registry. Today, building Docker images with heroku.yml is generally available; you can now:

  • Use git push heroku master to build your Docker images on Heroku
  • Take advantage of review apps in Docker-based projects

For most teams, using containers in production requires you to spend time setting up and maintaining complex infrastructure. By using heroku.yml to build your Docker …

Cache Invalidation Complexity: Rails 5.2 and Dalli Cache Store

Rails applications that use ActiveRecord objects in their cache may experience an issue where the entries cannot be invalidated if all of these conditions are true:

  1. They are using Rails 5.2+
  2. They have configured config.active_record.cache_versioning = true
  3. They are using a cache that is not maintained by Rails, such as dalli_store (2.7.8 or prior)

In this post, we discuss the background to a change in the way that cache keys work with Rails, why this …

Heroku Buildpack Registry: Making Buildpacks Open and Shareable

Yesterday we announced a major step towards making buildpacks a multi-platform, open standard by contributing to Cloud Native Buildpacks, a Sandbox Project hosted by the Cloud Native Computing Foundation. Today, we are announcing that you can now easily share your buildpacks with the world, by registering them with the Heroku Buildpack Registry.

As of this post, the Buildpack Registry contains over 100 buildpacks created by authors like you. Because of your contributions, Heroku developers …

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