Knative Eventing release v0.14.0

Artifact	Description
eventing.yaml	Core knative/eventing resources bundled with the InMemoryChannel and Channel Broker.
eventing-core.yaml	The core knative/eventing resources: Channel, Subscription, Broker, Trigger, APIServerSource, ContainerSource, PingSource, EventType, Sequence, Parallel.
eventing-crds.yaml	The core knative/eventing CRDs only.
channel-broker.yaml	The default Broker implementation using Channels.
mt-channel-broker.yaml	The multi-tenant Broker implementation using Channels.
in-memory-channel.yaml	The InMemoryChannel resource.
upgrade-to-v0.14.0.yaml	The job to upgrade Brokers to 0.14.

Eventing

This release introduces a multi-tenant Broker implementation using Channels.

Action Required

• In this release, Brokers without the eventing.knative.dev/broker.class annotation are no longer reconciled. Run the upgrade script to update all the Brokers with the proper annotation.
  For more details see the upgrade instructions. #2840
• Subscriptions (including those used internally by Brokers) will be re-created on upgrade from a previous release. That will trigger an unsubscribe action at the channel and a new subscribe, losing any state information like offsets along the way. To check if your cluster has any Subscriptions that would be affected, use the upgrade check tool at https://github.com/triggermesh/eventing-upgrade-check. #2861
• Migrate ContainerSources to the new v1alpha2 version and delete the old CRD called containersources.sources.eventing.knative.dev with kubectl delete crds containersources.sources.eventing.knative.dev. #2824
• The HTTP trace propagation format used within eventing has changed from B3 to the W3C tracecontext format as specified by the cloudevents distributed tracing extension.
  Eventing clients should be updated to use the W3C tracecontext propagation format or a Cloudevents SDK with support for trace propagation. #2559
• The following resources are removed: CronJobSource/sources.eventing.knative.dev,
  ApiServerSource/sources.eventing.knative.dev, SinkBinding/sources.eventing.knative.dev,
  ContainerSource/sources.eventing.knative.dev. Required action to remove the legacysinkbindings webhook: kubectl delete mutatingwebhookconfiguration legacysinkbindings.webhook.sources.knative.dev.
  #2693

New Features

• Add APIServerSource v1alpha2 CRD. #2872
• Add ContainerSource v1alpha2 CRD. #2755
• A new Grafana dashboard is provided to monitor PingSources handled by the multi-tenant adapter. #2816
• Add a namespace controller that creates brokers per namespace without the additional components. #2778
• Add new multi-tenant channel based broker artifact. #2777
• Add multi tenant channel based broker component. #2760
• Add a new Source CRD reconciler that reconciles CRDs with the duck.knative.dev/source="true" label.
  This is used to create EventTypes. #2484
• Add ability to specify how to default broker classes at both Cluster / Namespace level. #2724
• PingSources are now by default handled by a global multi-tenant adapter. #2716

Bug Fixes

• Fix generated names not being DNS1123 compliant when based on strings that contain dots. #2753
• Fix missing global resync which prevents Brokers from becoming ready if they are reconciled before the shared deployment have become ready. #2779
• Add PingSource finalizer to ensure the internal cache is properly updated. #2759
• Fix bug fix broken trigger to NOT require a filter. #2696

Other Changes

• Update sdk-go to v2.0.0-RC1. #2942
• Move ConfigMapPropagation CRD to knative-internal category. #2887
• Rename Trigger condition Subscribed to SubscriptionReady. #2827
• Change container names for consistency and uniqueness. #2794
• Use the In-Memory Channel v1beta1 API as default channel. #2758
• Add conformance test outline to Broker spec. #2748
• Deprecated Cloud Events 0.2 support. #2725
• Eventing no longer ships a sources controller deployment. #2707