Container Service for Kubernetes (ACK) allows you to upgrade Knative components. You can use Knative Serving to manage serverless applications. This enables auto scaling of pods based on Knative events and user requests. If no workload is processed, the number of pods is scaled to zero. This topic describes how to upgrade Knative Serving.
Prerequisites
- Knative Serving is deployed. For more information, see Deploy a Knative component.
- The Kubernetes version is later than 1.15.0.
- Only Knative Serving 0.11.0 can be upgraded.
Note We recommend that you upgrade Knative Serving during off-peak hours.
Background information
Knative Serving 0.14.0 provides the following features:
- By default, a minimum of 20 latest Knative Service revisions are retained. The default retention period is 48 hours.
- Highly reliable subcomponents are provided, such as controller and hpaautoscaler.