kserve/kserve v0.4.0 on GitHub

Action Required

KFServing has added object selector on pod mutator webhook configuration which requires minimally Kubernetes 1.15 to take effect.
The generated KFServing InferenceService openAPI schema validation now includes markers like x-kubernetes-list-map-keys and x-kubernetes-map-type which requires minimally Kubernetes 1.16, if you are on kubernetes 1.15 or lower version please install KFServing with --validate=false flag.
Tensorrt inference server has been renamed to Triton inference server, if you are using tensorrt predictor on inference service yaml please rename to triton.
KFserving has removed the default percentage based queue proxy resource limit due to #844, please set queue proxy requests/limits in the knative config-deployment.yaml config map which is introduced in knative 0.16 or add the queue proxy resource limit annotation if you are on lower version and your cluster has resource quota turned on, we highly recommend upgrading linux kernel if you are hitting the same cpu throttling issue.
The default S3 credential name has been updated to follow the convention from awsAccessKeyID and awsSecretAccessKey to AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY, if you have secrets configured with the old way please update accordingly.
KFServing has stopped maintaining the model server image versions in the configmap, user now can set the corresponding model server version on runtimeVersion field if you need the version different from the default.

Add batcher module as sidecar #847 @zhangrongguo
Add Default LivenessProbe to Tensorflow Predictor #925 @salanki
Remove framework image version list from configmap #917 @yuzisun
Record Events when InferenceService goes in and out of readiness state #876 @ifilonenko
Triton inference server rename and integrations #747 @deadeyegoodwin
Alibi explainer upgrade to 0.4.0 #803 @cliveseldon
Make default request logger url more flexible #837 @ryandawsonuk
Allow customized url paths on data plane #907 @Iamlovingit
Add object selector for KFServing pod mutator webhook configuration #893 @yuzisun
Update logger to CloudEvents V1 protocol #886 @cliveseldon
Set ContainerConcurrency to Parallelism #806 @salanki

Disable retries in Istio VirtualService #807 @salanki
Remove default queue proxy resource limit and Add KFServing benchmarking #894 @yuzisun
Enhance SDK watch API to avoid traceback #889 @jinchihe
Update KNative annotation when modifying minReplicas to 0 #963 @salanki
Allow configurable region name when creating minio client #823 @harshavardhana
Return 503 from healthhandler when model is not ready #818 @kolasanichaitanya
Updated S3 credential variable names to commonly used en var names #704 @karlschriek
Fix duplicated volume issue when attaching GCS secret #766 @kangwoo