Release notes

Newest release

Release of Add-ons and more agile CAST AI agent2021-06-08

  • We have released the Add-ons management functionality for CAST AI clusters. Now CAST AI clusters will be created faster without any add-ons pre-installed. Afterward, users will be able to choose the add-ons they wish to use. The Add-ons feature is available in the cluster dashboard, try it out! 

  • We increased the frequency of communication between the agent deployed on the client’s cluster and CAST AI and reduced the amount of data the agent sends via the network. Now CAST AI can react in as little as 15 seconds and scale the cluster as required.

  • We have applied minor improvements and fixes to increase the accuracy of our Available savings report.

  • Improved experience for selecting and managing your subscription.

  • Created a guide on how to disconnect your EKS cluster from CAST AI.

  • Last but not least, we fixed some bugs and made small improvements to the UI.

May 2021

Release of Cost optimization functionality for EKS clusters2021-05-04

April 2021

Save a lot by pausing and resuming your clusters on schedule2021-04-16

  • Save costs by stopping your clusters when they're idle! We have launched a “Cluster schedule” functionality to pause and resume clusters based on the user-defined schedule. Find this feature in your cluster dashboard or check the documentation.

  • The node autoscaler policy now supports GCP Preemptive Instances.

  • We introduced additional validations in GCP credentials onboarding.

  • As always our team took care of bug fixes, performance optimizations, and small UI improvements.

Release of CAST AI agent and “Savings” feature2021-04-02

  • Launched an agent to connect the EKS cluster (that was not created by CAST AI) to our console. Users can now connect clusters in read-only mode and use the “Savings” feature to analyze proposed optimizations and their impact on the cloud bill.

  • Revamped dashboard UI.

  • Node interruptions made visible in the logs data via Audit log UI.

  • Canada East (Montréal) is now a supported region in our cluster creation flow.

  • Fixed minor bugs.

March 2021

Improved GCP credentials creation & Launch of CAST CLI2021-03-22

  • We have simplified the user credentials creation process for GCP.

  • You can now control your clusters using our own Command Line Interface (CLI). Read more about the beta version and install it!

  • Improved handling of Kubernetes nodes and load balancers, so the status of the nodes is tracked, and load balancers are removed when appropriate.

  • Improved Unschedulable Pods policy to peak in to the future and consider nodes that are being created.

  • Now users can process subscription payments without leaving our console.
  • Improved structure of our documentation; check it at

  • Updated UI elements in our console and, as always, our team shipped some bug-fixes.

  • Launched the status page so our customers can check the health of our platform.

February 2021

Master Node Configuration & General Improvements2021-02-12

  • Now you can Add/Remove additional master nodes on the live cluster. Convert a single non-high availability control plane to 1, 3, or 5 nodes and vice versa.
  • The newly updated and easier to understand policy is now included as part of our Unschedulable Pods policy configuration. Read more in our documentation.
  • Digital Ocean cluster deletion is improved by handling dependencies timing better.
  • Other small and various improvements.


January 2021

New Upgrades & Visible Improvements2021-01-29

  • We upgraded Kubernetes to version 1.19 and bumped Cilium up to version 1.9. Take it for a spin here.
  • If you’re creating a new cluster with Azure as one of the providers, it will now use non-burstable Azure instance types.
  • Get more control if you see the need: interrupt and add a Spot Instance Node right from your Node list.
  • And, as always, we've shipped some bug-fixes and performance improvements.

CAST AI welcomes the beloved Developer Cloud!2021-01-22

  • You asked, we've delivered: DigitalOcean is now part of our ever-growing list of supported cloud service providers. Starting now, you can stretch your Kubernetes clusters across DO, AWS, GCP and Azure. Sign up here !

Support for Spot/Preemptive Instances added2021-01-22

  • Spot instances, if applied correctly, can yield up to 60-80% cloud savings and are really useful for stateless workloads (think, micro-services). So, starting now, if you want to, we can tell our optimization engine to start purchasing Spot (Preemptive on GCP) instances for you. And if these instances are interrupted by the cloud provider, we automatically replace them! GCP & Azure instances will follow very shortly. Read more in our documentation.

Support for Wireguard2021-01-22

December 2020

Bootstrapping with our own product2020-12-17

Additional changes to CAST AI console2020-12-17

  • Create your API authentication tokens in the console
  • CAST AI API is moved to a more intuitive domain –

New Terraform provider2020-12-17

New documentation hub2020-12-17

  • Access CAST AI documentation at We’ve reworked it so you can find what you need more easily