Chapter 9. Feature gates

Feature gates have three stages of maturity:

Alpha and beta stage features are removed if they do not prove to be useful. When a feature gate reaches GA, it is permanently enabled and can no longer be disabled. The following table shows the maturity of the feature gates introduced across Streams for Apache Kafka versions.

For information on feature gates that have reached GA, see the documentation for the Streams for Apache Kafka version in which they were introduced.

Stable feature gates have reached a beta level of maturity, and are generally enabled by default for all users. Stable feature gates are production-ready, but they can still be disabled. Currently, there are no beta level feature gates.

Early access feature gates have not yet reached the beta stage, and are disabled by default. An early access feature gate provides an opportunity for assessment before its functionality is permanently incorporated into Streams for Apache Kafka. Currently, there are no alpha level feature gates.

To modify a feature gate’s default state, use the STRIMZI_FEATURE_GATES environment variable in the operator’s configuration. You can modify multiple feature gates using this single environment variable. Specify a comma-separated list of feature gate names and prefixes. A + prefix enables the feature gate and a - prefix disables it.

env:
  - name: STRIMZI_FEATURE_GATES
    value: +FeatureGate1,-FeatureGate2