Introduction

This release is the result of a lot of extensive work and is packed with new features and improvements that are designed to make Chaos Engineering even better for our users. Here are some of the major feature additions:

Simplified User Experience

LitmusChaos 3.0.0 has undergone a complete transformation of our user interface (UX) to offer a sleek and intuitive experience. The new UI now leverages the Harness UIcore library, promising an even smoother user journey.

Introduction to Environments

Introducing Environments, a powerful tool that helps users effectively handle their Chaos Infrastructures and keep things organized.

Chaos Studio

Introduction of Chaos Studio, a one-stop solution to help users choose the faults based on use cases, tune them, add resilience probes and simplify the chaos experimentation.

Resilience Probes as an Entity

Now, resilience probes can be easily used over and over again, making it simple for users to create them once and benefit from them multiple times. This improvement ensures strong support for checking system stability and making it more resilient.

MongoDB High Availability Support

You can now install MongoDB Replicas via Helm using Bitnami Mongo, seamlessly integrating chaos engineering into your MongoDB infrastructure.

Terminology Changes

• Chaos Agents/Delegates are now referred to as Chaos Infrastructures.
• Chaos Scenarios/Workflows is now known as Chaos Experiments.
• Chaos Experiments have been rebranded as Chaos Faults.

API enhancements and Unit tests in the Backend:

Along with the above, lots of API enhancements, documentation and backend unit tests are also added to enhance the developer experience.

Backward Compatibility

Litmus 3.x is not backward compatible with the older releases of ChaosCenter.

Release Cadence & Versioning

The release cadence & naming conventions continue to adhere to the principles followed thus far in the Litmus project: the monthly minor version releases (3.x.0) will happen on the 15th, with patch releases/hotfixes going into 3.x.x, on a need/demand basis. The 2.x version will be stopped at 2.14.x (2.14.0 at this point) and further patches will be made only upon request/community need.

Documentation

The documentation has undergone considerable changes - in terms of content and structure and it continues to undergo improvements as of the 3.0 release. We expect that a few more iterations are needed to sort out the Information Architecture.

The installation details for the 3.0 platform along with detailed introductions to concepts, architecture as well as a user guide are now available at https://docs.litmuschaos.io/

The latest chaos experiment details along with chaos custom resource schema specifications (tunables, examples, etc.,) and detailed FAQs & troubleshooting info can be found in https://litmuschaos.github.io/litmus/

For those continuing to use 2.x releases, please note that the docs are now moved to: https://v2-docs.litmuschaos.io/

Misc (monthly changelog between 15/09/2023 to 04/10/2023)

• fix: Updated config to fix favicon by @hrishavjha in #4179
• fix: Added experiment run operator for NewChaosExperimentService by @amityt in #4184
• Fixed issue with invite user modal for users which were once deactivated by @Saranya-jena in #4185
• fix: Fixed issues with refetch on ChaosHub, Environment and Probe screens by @hrishavjha in #4182
• fix: Fixed issue where create/edit environment API was being called twice by @hrishavjha in #4191
• Added check to prevent duplicate experiments with same name by @SarthakJain26 in #4187
• [chore]: Show an error popup when a user enters an invalid info by @namkyu1999 in #4177
• Adding event tracker changes for litmus 3.x by @imrajdas in #4193
• fix: Fixing missing ResourceNames field from k8s probe by @S-ayanide in #4194
• Added loader component for Gitops page by @Saranya-jena in #4192
• Removed system probe creation and updated lib images by @Saranya-jena in #4203
• added manifest changes for ci and 3.0.0 by @SarthakJain26 in #4195
• Updated select probe button text by @Saranya-jena in #4204
• fix: update ChaosEngine crd manifest file in graphql server by @namkyu1999 in #4205
• added check to prevent dupicate experiment name by @SarthakJain26 in #4208
• chore(3.0.0): Adding the manifests for 3.0.0 by @ispeakc0de in #4196
• Fixed issue with fault node popover not showing probe results by @Saranya-jena in #4211
• fixed duplicate experiment name issue by @SarthakJain26 in #4210
• Fix isRegistered check in GetK8sInfraYaml(ChaosCenter/graphql) by @Nageshbansal in #4127
• fix: Added minor changes for 3.0.0 artifacts by @Jonsy13 in #4212

New Contributors

• @Nageshbansal made their first contribution in #4127

Full Changelog: 2.14.0...3.0.0