Release Knative Eventing release v0.23.1 · knative/eventing

Changes by Kind

🗑️ Remove {eventing,flows,messaging} v1beta1 APIs (#5201, @vaikas)
🎁 Promote PingSource to v1 (#5324, @lionelvillard)
🗑️ Remove APIServerSource, ContainerSource, PingSource and SinkBinding v1alpha2 APIs (#5318, @lionelvillard)
🗑️ Remove APIServerSource, ContainerSource, PingSource and SinkBinding v1beta1 APIs (#5319, @lionelvillard)
🗑️ Remove APIServerSource and SinkBinding v1alpha1 APIs (#5317, @lionelvillard)
Tools from https://github.com/knative/eventing-contrib/tree/main/cmd were moved to eventing repo. (#5295, @vaikas)

🐛 duckv1.SourceSpec, TimeZone, Schedule will be populated when called by v1beta1/v1alpha2 clients (#5153, @eclipselu)
🐛 Propagate trigger.spec.delivery to subscriptions for MTChannelBasedBroker. (#5267, @n3wscott)

Sequence now displays conditions as Unknown rather than False for non-terminal condition states. (#5369, @n3wscott)

📄 MTChannelBasedBrokers will see improved filter performance for triggers with few or no trigger filters (#5288, @benmoss)
InMemoryController can be used independent of Eventing Core.

To downgrade InMemoryController from release 0.23 to 0.22, the new to v0.23 webhook configuration:
- kubectl delete ValidatingWebhookConfiguration validation.inmemorychannel.eventing.knative.dev
- kubectl delete MutatingWebhookConfiguration inmemorychannel.eventing.knative.dev (#5355, @n3wscott)
Running validation for event ingress on mt broker (#5275, @matzew)