Knative Eventing release v0.11.0

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Parallel
in-memory-channel.yaml	The InMemoryChannel CRD
release.yaml	Core knative/eventing components bundled with the InMemoryChannel

Eventing

Action Required

• The deprecated subscribablestatus field has been removed. #2205

Action Requested

• Parallel has been moved to parallels.flows.knative.dev/v1beta1 with identical behavior. parallels.messaging.knative.dev is now deprecated. Please transition to the new API group. #2156 #2168
• Sequence has been moved to sequences.flows.knative.dev/v1beta1 with identical behavior. sequences.messaging.knative.dev is now deprecated. Please transition to the new API group. #2156 #2168
• Subscription.spec.reply.channel has been deprecated. Instead, use Subscription.spec.reply as a Destination type. https://github.com/knative/eventing/pull/2142

New Features

• Introduce a new SinkBinding CRD (docs). #2234
• InMemoryChannel now supports dead letter sink as described in delivery options and IMC doc. #1978
• The APIServer source now reports whether there is enough permission to get/watch/list configured resources. #2136
• ConfigMaps in the system namespace are now validated. #2140
• Trigger now has a SubscriberResolved condition showing the status of the Subscriber's Addressable resolution. #2162
• ApiServerSource and CronjobSource produce CE 1.0 payload. #2259

Bug Fixes

• CronjobSource and ApiServerSource now set application/json when emitting events. #2126
• The webhook ServiceAccount now only has necessary permissions. #2204
• The webhook Deployment now sets resource requests and limits. #2204

Other Changes

• Service port names now follow the istio naming convention. #2200
• The Broker filter now responds with 400 instead of 202 when an event is received without a TTL attribute. #2264

Knative Eventing release v0.10.2

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Parallel
in-memory-channel.yaml	The InMemoryChannel CRD
release.yaml	Core knative/eventing components bundled with the InMemoryChannel

Eventing

Bug Fixes

• The Broker no longer changes the version of CloudEvents when delivering an event. CloudEvents v1.0 is now fully supported. #2247 #2249

Knative Eventing release v0.8.1

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, ClusterChannelProvisioner, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Choice
gcp-pubsub.yaml	The GCP PubSub ChannelProvisioner
in-memory-channel-crd.yaml	The InMemoryChannel CRD
in-memory-channel-provisioner.yaml	The in-memory ChannelProvisioner
natss.yaml	The NatssChannel CRD
release.yaml	Core knative/eventing components bundled with the in-memory ClusterChannelProvisioner

Eventing

Bug Fixes

• The NatssChannel reconciler now retries the reconcile if an error occurs. #2196

Knative Eventing release v0.10.1

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Parallel
in-memory-channel.yaml	The InMemoryChannel CRD
release.yaml	Core knative/eventing components bundled with the InMemoryChannel

Eventing

New Features

• Added SubscriberResolved condition on Trigger. This condition is true if the subscriber's Addressable URI has been resolved successfully. #2170

Bug Fixes

• kodata now present for all commands. #2155

Other Changes

• Broker ingress and filter metrics do not tag metrics with event_source nor filter_source anymore. #2159

Knative Eventing release v0.10.0

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Parallel
in-memory-channel.yaml	The InMemoryChannel CRD
release.yaml	Core knative/eventing components bundled with the InMemoryChannel

Eventing

Action Required

• The minimum required Kubernetes version is now 1.14. The webhook will exit if run with an older version of Kubernetes. #1919
• If events are delivered to the Broker during the upgrade from previous versions, some may be lost. #1947
• The channels.eventing.knative.dev CRD has been removed and replaced with channels.messaging.knative.dev. Please manually delete the removed CRD with kubectl delete crd channels.eventing.knative.dev. #1974
• The apiVersion, kind, and name fields previously used to reference Addressable objects in Parallel, Sequence, ApiServerSource, ContainerSource, and CronJobSource have been deprecated and replaced with the Destination type. Please update your objects to use the Destination ref field instead. #2067 #2089 #2090 #2095 #2107 #2109
• The CloudEvents SDK no longer defaults content type to application/json. Please set content type if required. #2066

New Features

• Trigger, Subscription, Parallel, Sequence, ApiServerSource, ContainerSource, and CronJobSource now use the Destination type to reference Addressable objects. This type allows an Addressable reference to be an ObjectReference, a URI string, or both (the URI string is used as a relative reference). #2067 #2089 #2090 #2095 #2107 #2109
• CloudEvents v1.0 format is now supported. #2066
• A Trigger created for the default Broker with the knative-eventing-injection: "enabled" annotation will cause the namespace to be labeled with knative-eventing-injection: "enabled", creating a default Broker in the namespace if one doesn't already exist. #2034
• ApiServerSource and CronJobSource now support additional Ready and Age columns in kubectl get output. #2114
• Expose Go's runtime.MemStats as opencensus metrics in all binaries. #1946
• Add Grafana dashboards for Broker/Trigger and Source metrics. #1966
• The Source contract is now described at docs/spec/sources.md for implementers. #1856

Bug Fixes

• ApiServerSource, ContainerSource, and CronJobSource are now validated by the webhook. #1886
• CronJobSource now properly configures Request and Limit on the pod. #1924
• Mark Trigger's dependency status as Unknown when the dependency's observed generation is not current. #1926
• ApiServerSource's controllerSelector and labelSelector fields can now be empty. #1965
• Subscriptions are now updated when Sequence steps are updated. #1954
• Subscriptions are now updated when Parallel spec changes. #2006
• The Kubernetes default edit and view roles now have access to eventing objects. #1993
• Broker's channelTemplate field is now immutable. #2018
• All eventing resources now have the creator and lastModifier annotations. #1981
• The controller now has permissions to update finalizers for messaging.knative.dev Channels. #2074

Other Changes

• Broker channel names have been renamed. #1947
• Event type information on source CRDs is now specified in an annotation instead of the OpenAPI spec. #1968
• Broker, Channel, Parallel, Sequence CRDs are now labeled with duck.knative.dev/addressable: "true". #2099
• The MutatingWebhookConfiguration is now created via YAML instead of on webhook start. #2093
• The SinkProvided condition now includes a warning message when the deprecated {apiVersion,kind,name} fields are used in Parallel, Sequence, ApiServerSource, ContainerSource, and CronJobSource. #2105 #2107 #2108 #2109

Knative Eventing release v0.9.0

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, ClusterChannelProvisioner, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Parallel
in-memory-channel.yaml	The InMemoryChannel CRD
release.yaml	Core knative/eventing components bundled with the InMemoryChannel

Eventing

ClusterChannelProvisioners have been removed in this release. Please transition to the replacement Channel CRD:

Existing CCP	Replacement CRD
in-memory	InMemoryChannel
kafka	KafkaChannel in https://github.com/knative/eventing-contrib
natss	NatssChannel in https://github.com/knative/eventing-contrib
gcp-pubsub	Channel.pubsub.cloud.run in https://github.com/google/knative-gcp

The Channel CRD in eventing.knative.dev has been removed in this release. Please transition to Channel in messaging.knative.dev which has similar functionality.

The Subscription CRD has been moved to messaging.knative.dev. Please use the new apiGroup when creating new Subscriptions. Existing Subscriptions will no longer be reconciled.

The Choice CRD has been renamed to Parallel.

Action Required

• The Subscription CRD has been moved from apiGroup eventing.knative.dev to messaging.knative.dev. #1742
• The NatssChannel CRD has been moved to https://github.com/knative/eventing-contrib. Install it from the releases page. #1579.
• The in-memory CCP has been removed. #1484
• The GCPPubSub CCP has been removed. #1598
• The ClusterChannelProvisioner and Channel CRDs has been removed from apiGroup eventing.knative.dev. #1664 #1605 #1704
• The status.subscribablestatus field has been deprecated and replaced with status.subscribableStatus. Both fields are present in Subscribable statuses. #1685
• Broker and Trigger metrics have been renamed. Please refer to the docs for description of the new metrics. #1739 #1779 #1784
• Eventing pods no longer use the prometheus.io/scrape annotation. #1722
• The Choice CRD has been renamed to Parallel. #1843
• The Go import path has changed. Contributors and users building from source will need to move github.com/knative/eventing to knative.dev/eventing in their $GOPATH. #1655
• The importer category has been removed from ApiServerSource, CronJobSource, and ContainerSource CRDs. #1882

New Features

• Broker Ingress and Filter pods now have liveness and readiness checks. #1699
• Broker pods can now send metrics to configurable backends using the config-observability ConfigMap. #1726
• A Prometheus scrape configuration is now included at config/monitoring/metrics/prometheus. See docs/metrics.md for details. #1722 #1747
• Broker and InMemoryChannel subscriber request timeout increased from 1 minute to 15 minutes. #1776
• ApiServerSource now supports filtering a label selector. #1661
• ApiServerSource now supports filtering by controller apiVersion and kind. #1879
• ApiServerSource now reports event count metrics. #1786
• CronJobSource now reports event count metrics. #1790
• Triggers can use an annotation containing an ObjectReference to depend on an external object for readiness. [#1849](#1849

Bug Fixes

• Added attributes field to Trigger OpenAPI schema. #1671
• Sort Subscribable subscriptions by UID to avoid churn from order changes. #1694
• The Trigger reconciler now reconciles Triggers when Brokers change. #1705
• The eventing webhook will now reject objects containing unknown fields. #1695
• Broker now preserves trace ids on incoming requests by setting outgoing request headers and the traceparent CloudEvents extension attribute. #1754
• Readiness requests to the Broker filter are no longer traced. #1844
• ApiServerSource, CronJobSource, and ContainerSource now update status.observedGeneration when reconciled. #1897

Knative Eventing release v0.8.0

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, ClusterChannelProvisioner, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence, Choice
gcp-pubsub.yaml	The GCP PubSub ChannelProvisioner
in-memory-channel-crd.yaml	The InMemoryChannel CRD
in-memory-channel-provisioner.yaml	The in-memory ChannelProvisioner
natss.yaml	The NatssChannel CRD
release.yaml	Core knative/eventing components bundled with the in-memory ClusterChannelProvisioner

Eventing

ClusterChannelProvisioners have been deprecated and will be removed in a future release. Please transition to using CRD-based channel implementations instead.

Existing CCP	Replacement CRD
in-memory	InMemoryChannel
kafka	KafkaChannel in https://github.com/knative/eventing-contrib
natss	NatssChannel
gcp-pubsub	Channel.pubsub.cloud.run in https://github.com/GoogleCloudPlatform/cloud-run-events

Action Required

• The Kafka channels, both the provisioner-based one as well as the KafkaChannel CRD, have been moved to https://github.com/knative/eventing-contrib. Install them from there. #1609.
• sourceAndType filtering on Triggers has been deprecated. A new attributes filter is available, where besides filtering on standard CloudEvents attributes, it allows to filter based on extension attributes.

New Features

• A new Choice CRD has been added for defining functions to execute based on some condition. #1529, #1595, #1608, #1611, #1642
• Default channel support for Channel CRDs. #1560
• Introduced a new Channel object in messaging.knative.dev API group to be used in case users want a channel but are not interested in its actual implementation (e.g., whether it is an InMemoryChannel, KafkaChannel, NatssChannel, etc.). #1560
• Brokers now leverage the default channel support for CRDs to set up a default channel, if not specified. #1560
• Sequences now leverage the default channel support for CRDs to set up a default channel, if not specified. #1569
• Migrated to use v0.3 of CloudEvents Spec. #1535, #1575
• Added stats reporter for webhook. #1520
• Added access to metrics with Grafana and Prometheus. Follow this guide to understand the details. #1584
• Exposed the registration delay for the webhook. #1534
• ApiServerSource now updates its receive adapter, if needed. #1576, #1577
• Broker and Trigger now use fixed names. The old Channels and Subscriptions with a generated name will continue to exist, but will be garbage collected once Brokers/Triggers are deleted. #1563
• ApiServerSource now uses fixed names. #1602
• ContainerSource now uses fixed names. #1628
• CronJobSource and ApiServerSource are discoverable. By describing their CRDs, you can identify what are the event types they can produce. #1638
• Channels based on the provisioner model now use fixed names. #1588.
• Added metric to measure the time from when an event is received by the Broker ingress until it is delivered to the function. #1635
• Added attributes filter on Triggers. #1643

Bug Fixes

• Tracing service name for CronJobSource is now cronjobsource. #1492
• Added RBAC update permissions for finalizers sub-resource of Sequences. #1495
• Added missing json tags in Sequence's SubscriptionStatuses and ChannelStatuses. #1501
• Registered SequenceList to the known types scheme. #1528
• Fixed e2e tearing down step #1541
• Changed version to versions in CRDs. #1547
• Added InMemoryChannel, KafkaChannel, NatssChannel, Channel.messaging.knative.dev, and Sequences to the addressable-resolver cluster role. #1600, #1601, #1608

Other Changes

• Updated opencensus dependencies. #1532
• Removed old deprecated webhook called webhook. #1322
• Migrated to knative.dev/pkg. #1475
• Migrated to knative.dev/test-infra. #1604
• Added importers category to ApiServerSource, ContainerSource, and CronJobSource. #1473
• Added e2e test for Sequences. #1482
• Skipped flaky tests. #1502
• Added channel spec draft. #1420, #1514, #1572, #1617
• Made gcloud a no-op if not available for test scripts #1508
• Changed environment variable names for release process #1542
• Replaced AddressableTracker with ResourceTracker. #1522
• Added point release documentation for knative/test-infra. #1548
• Disabled logging headers in NATSS dispatcher. #1552
• Updated roadmap documentation. #1574
• Increased UT coverage. #1568, #1570, #1571
• ApiServerSource now propagates its receive adapter's status. #1578
• Removed e2e tests for channel provisioners. #1489
• Moved Broker ingress to pkg. #1612
• Allowed running e2e tests on oidc clusters and dockerhub. #1620
• Small CronJobSource improvements. #1630, #1632
• Documented steps to create a release. #1639
• Added automatic release version labels. #1644
• Made e2e tests work on macOS. #1641
• New service account for eventing-source-controller. #1490
• Added scrape annotation to services exporting metrics. #1510
• Added permissions to admin default roles. #1503

Knative Eventing release v0.7.1

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, ClusterChannelProvisioner, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence
gcp-pubsub.yaml	The GCP PubSub ChannelProvisioner
in-memory-channel-crd.yaml	The InMemoryChannel CRD
in-memory-channel-provisioner.yaml	The in-memory ChannelProvisioner
kafka.yaml	The KafkaChannel CRD
kafka-ccp.yaml	The Kafka ChannelProvisioner
natss.yaml	The NatssChannel CRD
natss-ccp.yaml	The Natss ChannelProvisioner
release.yaml	Core knative/eventing components bundled with the in-memory ClusterChannelProvisioner

Eventing

ClusterChannelProvisioners have been deprecated and will be removed in a future release. Please transition to using CRD-based channel implementations instead.

Existing CCP	Replacement CRD
in-memory	InMemoryChannel
kafka	KafkaChannel
natss	NatssChannel
gcp-pubsub	Channel.pubsub.cloud.run in https://github.com/GoogleCloudPlatform/cloud-run-events

Bug Fixes

• The Kafka and Natss ClusterChannelProvisioners have returned as release artifacts alongside the CRD Channels. #1486 #1488
• The Sequence controller now has the proper RBAC permissions on OpenShift. #1495 #1497

Knative Eventing release v0.6.1

Artifact	Description
eventing.yaml	Just the core knative/eventing components without Sources or ChannelProvisioners
gcp-pubsub.yaml	Just the GCP PubSub ChannelProvisioner
in-memory-channel.yaml	Just the in-memory ChannelProvisioner
kafka.yaml	Just the Kafka ChannelProvisioner
natss.yaml	Just the NATS Streaming ChannelProvisioner
release.yaml	Core components bundled with the in-memory ChannelProvisioner

Eventing

Bug fixes

• Broker no longer drops messages with an incorrect "no TTL" error. #1466

Knative Eventing release v0.7.0

Artifact	Description
eventing.yaml	The core knative/eventing components: Channel, Subscription, ClusterChannelProvisioner, Broker, Trigger, APIServerSource, ContainerSource, CronJobSource, EventType, Sequence
gcp-pubsub.yaml	The GCP PubSub ChannelProvisioner
in-memory-channel-crd.yaml	The InMemoryChannel CRD
in-memory-channel-provisioner.yaml	The in-memory ChannelProvisioner
kafka.yaml	The KafkaChannel CRD
natss.yaml	The NatssChannel CRD
release.yaml	Core knative/eventing components bundled with the in-memory ClusterChannelProvisioner

Eventing

ClusterChannelProvisioners have been deprecated and will be removed in a future release. Please transition to using CRD-based channel implementations instead.

Existing CCP	Replacement CRD
in-memory	InMemoryChannel
kafka	KafkaChannel
natss	NatssChannel
gcp-pubsub	Channel.pubsub.cloud.run in https://github.com/GoogleCloudPlatform/cloud-run-events

Action Required

• The deprecated kafka-channel-dispatcher StatefulSet in the knative-eventing namespace is no longer installed. Please delete this StatefulSet. #1236.
• The deprecated in-memory-channel ClusterChannelProvisioner is no longer installed. Please delete this ClusterChannelProvisioner and replace its usages with the in-memory ClusterChannelProvisioner or the InMemoryChannel CRD.
• Broker ingress pods now use the eventing-broker-ingress ServiceAccount. If you are using a Broker in a namespace not annotated with eventing injection, then you will need to follow the manual setup instructions to create the required ServiceAccount and RoleBindings. Failure to do so could cause Broker ingress pods to crash on startup. #1241
• The Deployment and Service objects implementing the Eventing webhook have been renamed to eventing-webhook. The webhook Deployment has been scaled to zero replicas and will be removed in a future release. #1269
• The broker_ingress_messages_total metric is now called broker_events_total. The broker_ingress_dispatch_time is now called broker_dispatch_time. #1177

New Features

• An InMemoryChannel CRD has been added to replace the in-memory ClusterChannelProvisioner. The in-memory ClusterChannelProvisioner has been deprecated and will be removed in a future release. #1219
• A KafkaChannel CRD has been added to replace the kafka ClusterChannelProvisioner. The kafka ClusterChannelProvisioner has been deprecated and will be removed in a future release. #1261 #1316
• A NatssChannel CRD has been added to replace the natss ClusterChannelProvisioner. The natss ClusterChannelProvisioner has been deprecated and will be removed in a future release. #1327
• A Sequence CRD has been added for defining a sequence of functions to execute in order with optional reply. #1239 #1406
• Channel, Subscription, Broker, and Trigger objects are now annotated with the name of the users who created and last updated the object. #1111
• Subscriptions can now have different Channel kinds referenced in their spec.channel field. E.g. "InMemoryChannel", "KafkaChannel", etc. #1283
• Addressable objects may now specify a URL as an alternative to hostname. #1296
• Traces are visible coming out of Channel dispatchers. #1248
• ClusterChannelProvisioners, Sources, and Broker data planes now support exporting traces to Zipkin. #704
• ContainerSource now supports specifying the source container with a PodTemplateSpec in the spec.template field. The existing pod specification fields are deprecated and will be removed in a future release. #1321
• CronJobSource now supports resource limits and requests fields. #1258
• The Trigger filter now exports filter and dispatch metrics at :9090/metrics. #1177

Bug Fixes

• Broker no longer drops messages with an incorrect "no TTL" error. This fix was also backported to v0.6.1. #1452
• Subscriptions now detect more failure scenarios before becoming Ready. #1264
• The EventType CRD is now installed in the first pass with other CRDs. #1298
• The EventType CRD now has an OpenAPI schema. #1308
• Channels and Subscriptions are no longer marked Ready before they are able to deliver messages. #1330

Other Changes

• Eventing controller now explicitly disables istio sidecar injection for its pods. #1304
• All Broker ingress and filter pods now retrieve observability config from cluster-wide ConfigMaps (normally in the knative-eventing namespace) instead of per-namespace ConfigMaps. #1426
• Objects created during the install process are now labeled with the eventing.knative.dev label and value equal to the installed release version or devel. #1467 #1470