Changelog

What’s New

• Experimental UI now available to everyone

To try it out, Enable Pipelines in your Project Settings and then click the opt-in banner available on any Job Detail page. We are actively monitoring feedback and bug reports through a poll that appears in the app. The data and commentary we receive directly impacts what we build next, so opt-in to be a part of making CircleCI better!

• Rerun with SSH available on experimental new UI

Rerun with SSH, the top new requested feature from in-app feedback from new UI users, is now available. We are rolling out this feature slowly to monitor for bugs, but we are excited to honor the feedback.

What’s New

Orbs are packages of CircleCI configuration shared across projects. Orbs help you simplify YAML configuration, enable you to build on top of CircleCI, and support sharing of standardized configurations across your projects.

This release provides you with access to certified orbs for AWS CodeDeploy, Rollbar, Artifactory, CodeCov, Heroku, Slack and more. You can also create and publish your own orbs using the CircleCI CLI. Refer to the CircleCI Orbs Registry for the complete list of certified orbs.

To learn about using and creating orbs, see the following documentation:

• Introduction to Orbs
• Using Orbs
• Creating Orbs
• Orbs FAQs

What’s New

The following features and additions are now available.

• New Workflows Feature: If your project has a large number of tests, you can use the circleci tests split command to reduce your job run time. This feature is now supported with Workflows. For more information on how to set up test splitting, see the Splitting Test Files section of the Running Tests in Parallel documentation.

• EOL Tools: The 1.0 migration center has been updated with additional content and helpful tools.

• Performance Improvement: CircleCI has upgraded the mechanism that returns gettimeofday calls. As a result, heavy users of syscall will see an aggregate improvement in performance. Most noticeably this will improve the run time of projects with heavy usage of profiling tools and Xdebug with PHP.

• Added: This release adds a Plan Overview page for customers on the Performance pricing plan to enable Admins to see their selection from the Settings.

• Added: Customers who are still building on CircleCI 1.0 will now get a reminder to upgrade to CircleCI 2.0 in build emails.

The release of CircleCI 2.0 for macOS enables your iOS projects to benefit from the significant performance, stability, and reliability improvements in the CircleCI 2.0 platform, including the following new features:

Workflows: Orchestrate jobs and steps with great flexibility using a simple set of new keys in your configuration. Increase the development speed through faster feedback, shorter reruns, and more efficient use of resources.

Advanced caching: Speed up builds by caching files from run to run using keys that are easy to control with granular caching options for cache save and restore points throughout your jobs. Cache any files from run to run using keys you can control.

Get started with the complete set of documentation for the macOS platform:

• iOS Project Tutorial
• Testing iOS Applications on macOS
• Setting Up Code Signing for iOS Projects

CircleCI 2.0 is a completely updated CI/CD platform that starts every run with a clean image which is automatically provisioned just-in-time for Linux jobs on the CircleCI application installed in your private cloud. The CircleCI 2.0 platform includes significant performance, stability, and reliability improvements along with first-class Docker support, Workflows (pipelines), Resource Allocation, and Contexts. The Management Console (Replicated) also includes new options for enabling 2.0 Builders and appropriate default settings.

If you have CircleCI installed you may access CircleCI 2.0 features on your current installation with no restrictions under your current agreement and support level. However, you must contact your CircleCI account representative for assistance with upgrading, to obtain migration scripts, and to receive a new license channel.

• CircleCI 2.0.0 is only available on AWS and may be installed with Terraform or manually.
• Teams may create a CircleCI 2.0 .circleci/config.yml file in their repositories to add new 2.0 projects incrementally while continuing to build 1.0 projects which use a circle.yml configuration file.

Documentation for the installable 2.0 application is available at CircleCI 2.0 Documentation for the following topics:

• Administrator’s Overview
• Administration FAQ
• Security Features
• Installing CircleCI 2.0 on Amazon Web Services with Terraform
• Configuring High Availability
• Administrative Variables, Monitoring, and Logging
• Introduction to Nomad Cluster Operation
• Backing up CircleCI Data

CircleCI 2.0 is a completely updated CI/CD platform that starts every run with a clean image which is automatically provisioned just-in-time for Linux and Android jobs on the hosted CircleCI application.

Configuration moves into the code in 2.0, so every developer can configure jobs directly in their working branch, teams can try new things without the risk of slowing anyone else down, and business leaders have the ability to operate large global teams with minimal overhead. CircleCI 2.0 prevents you from writing clean-up scripts because every run starts in the same state, eliminating the risk of polluting a test database or leaving files in places that cause problems for the next run.

The CircleCI 2.0 platform includes significant performance, stability, and reliability improvements along with the following new features:

• First-class Docker Support: Choose any image to run your job steps, customizable on a per-job basis on a particular Git branch. Speed up your run times with advanced layer caching. Build docker images with full docker CLI support and full support for docker compose. Support for all programming languages and custom environments that offer more predictable output. See Specifying Container Images for instructions.

• Workflows: Orchestrate jobs and steps with great flexibility using a simple set of new keys in your configuration. Share temporary files between jobs with workspaces for fan-in, fan-out, parallel, and sequential runs. Hold a workflow for a manual approval and restart a workflow from a failed job. See Orchestrating Workflows for details.

• Resource Allocation: Configure your CPU and RAM needs on a per-job basis at the branch level, see the resource_class documentation for instructions. Paid accounts may request this feature from their Customer Success Manager, non-paid users may request to get started by sending email to support@circleci.com.

• Insights: Access interactive charts and analyses in seconds. Visualize trends in your build history to identify and pinpoint bottlenecks. Understand all of your builds at a glance. View the builds that fail most, so you can fix the slowest tests to improve efficiency. See the Collecting Test Metadata documentation for information.

• Debugging with SSH and CLI: Perform local job runs, configuration validation and SSH in to builds for access to log files and debugging running processes. See Using the CLI documentation to learn about running local jobs and refer to Debugging Jobs over SSH for SSH instructions.

• Parallelism: Automatic provisioning of containers as they are freed without waiting for other jobs to finish. See the Parallel Job Execution documentation for examples.

• Advanced Caching: Speed up builds by caching files from run to run using keys that are easy to control with granular caching options for cache save and restore points throughout your jobs. Cache any files from run to run using keys you can control, see the Caching Dependencies documentation for strategies and steps.

• Demonstration Applications: See the Language Guides and Demo Repos to learn CircleCI configuration by example for applications written in Go, Javascript, PHP, Python (Django and Flask), Ruby on Rails, Java, Elixir, and Clojure.

• New Documentation: New and restructured documentation including an Overview, Hello World, Sample 2.0 config.yml File, simplified instructions for Migrating from 1.0 to 2.0, plus examples for Configuring Databases and Creating Custom Docker Images. Refer to the Migration FAQ for common questions and known limitations.