diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index f888bf51e..35986fab9 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -8,7 +8,7 @@
 *                       @googleapis/yoshi-java @googleapis/api-pubsublite
 
 # for handwritten libraries, keep codeowner_team in .repo-metadata.json as owner
-**/*.java               @googleapis/yoshi-java @googleapis/api-pubsublite
+**/*.java               @googleapis/api-pubsublite
 
 
 # The java-samples-reviewers team is the default owner for samples changes
diff --git a/.kokoro/release/bump_snapshot.cfg b/.kokoro/release/bump_snapshot.cfg
deleted file mode 100644
index 2c322b0c3..000000000
--- a/.kokoro/release/bump_snapshot.cfg
+++ /dev/null
@@ -1,53 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Build logs will be here
-action {
-  define_artifacts {
-    regex: "**/*sponge_log.xml"
-  }
-}
-
-# Download trampoline resources.
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
-
-# Use the trampoline script to run in docker.
-build_file: "java-pubsublite/.kokoro/trampoline.sh"
-
-# Configure the docker image for kokoro-trampoline.
-env_vars: {
-  key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-kokoro-resources/node:10-user"
-}
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/bump_snapshot.sh"
-}
-
-# tokens used by release-please to keep an up-to-date release PR.
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 73713
-      keyname: "github-magic-proxy-key-release-please"
-    }
-  }
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 73713
-      keyname: "github-magic-proxy-token-release-please"
-    }
-  }
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 73713
-      keyname: "github-magic-proxy-url-release-please"
-    }
-  }
-}
diff --git a/.kokoro/release/common.cfg b/.kokoro/release/common.cfg
deleted file mode 100644
index 891ff57f4..000000000
--- a/.kokoro/release/common.cfg
+++ /dev/null
@@ -1,49 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Download trampoline resources.
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
-
-# Use the trampoline script to run in docker.
-build_file: "java-pubsublite/.kokoro/trampoline.sh"
-
-# Configure the docker image for kokoro-trampoline.
-env_vars: {
-  key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 70247
-      keyname: "maven-gpg-keyring"
-    }
-  }
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 70247
-      keyname: "maven-gpg-passphrase"
-    }
-  }
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 70247
-      keyname: "maven-gpg-pubkeyring"
-    }
-  }
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 70247
-      keyname: "sonatype-credentials"
-    }
-  }
-}
diff --git a/.kokoro/release/common.sh b/.kokoro/release/common.sh
deleted file mode 100755
index 7f78ee414..000000000
--- a/.kokoro/release/common.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/bin/bash
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-# Get secrets from keystore and set and environment variables
-setup_environment_secrets() {
-  export GPG_PASSPHRASE=$(cat ${KOKORO_KEYSTORE_DIR}/70247_maven-gpg-passphrase)
-  export GPG_TTY=$(tty)
-  export GPG_HOMEDIR=/gpg
-  mkdir $GPG_HOMEDIR
-  mv ${KOKORO_KEYSTORE_DIR}/70247_maven-gpg-pubkeyring $GPG_HOMEDIR/pubring.gpg
-  mv ${KOKORO_KEYSTORE_DIR}/70247_maven-gpg-keyring $GPG_HOMEDIR/secring.gpg
-  export SONATYPE_USERNAME=$(cat ${KOKORO_KEYSTORE_DIR}/70247_sonatype-credentials | cut -f1 -d'|')
-  export SONATYPE_PASSWORD=$(cat ${KOKORO_KEYSTORE_DIR}/70247_sonatype-credentials | cut -f2 -d'|')
-}
-
-create_settings_xml_file() {
-  echo "<settings>
-  <servers>
-    <server>
-      <id>ossrh</id>
-      <username>${SONATYPE_USERNAME}</username>
-      <password>${SONATYPE_PASSWORD}</password>
-    </server>
-    <server>
-      <id>sonatype-nexus-staging</id>
-      <username>${SONATYPE_USERNAME}</username>
-      <password>${SONATYPE_PASSWORD}</password>
-    </server>
-    <server>
-      <id>sonatype-nexus-snapshots</id>
-      <username>${SONATYPE_USERNAME}</username>
-      <password>${SONATYPE_PASSWORD}</password>
-    </server>
-  </servers>
-</settings>" > $1
-}
\ No newline at end of file
diff --git a/.kokoro/release/drop.cfg b/.kokoro/release/drop.cfg
deleted file mode 100644
index 51368173c..000000000
--- a/.kokoro/release/drop.cfg
+++ /dev/null
@@ -1,6 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/drop.sh"
-}
diff --git a/.kokoro/release/drop.sh b/.kokoro/release/drop.sh
deleted file mode 100755
index 742ec1a88..000000000
--- a/.kokoro/release/drop.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/bash
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-# STAGING_REPOSITORY_ID must be set
-if [ -z "${STAGING_REPOSITORY_ID}" ]; then
-  echo "Missing STAGING_REPOSITORY_ID environment variable"
-  exit 1
-fi
-
-source $(dirname "$0")/common.sh
-pushd $(dirname "$0")/../../
-
-setup_environment_secrets
-create_settings_xml_file "settings.xml"
-
-mvn nexus-staging:drop -B \
-  --settings=settings.xml \
-  -DstagingRepositoryId=${STAGING_REPOSITORY_ID}
diff --git a/.kokoro/release/promote.cfg b/.kokoro/release/promote.cfg
deleted file mode 100644
index 5874ef346..000000000
--- a/.kokoro/release/promote.cfg
+++ /dev/null
@@ -1,6 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/promote.sh"
-}
diff --git a/.kokoro/release/promote.sh b/.kokoro/release/promote.sh
deleted file mode 100755
index 3cac3d8a9..000000000
--- a/.kokoro/release/promote.sh
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/bash
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-# STAGING_REPOSITORY_ID must be set
-if [ -z "${STAGING_REPOSITORY_ID}" ]; then
-  echo "Missing STAGING_REPOSITORY_ID environment variable"
-  exit 1
-fi
-
-source $(dirname "$0")/common.sh
-
-pushd $(dirname "$0")/../../
-
-setup_environment_secrets
-create_settings_xml_file "settings.xml"
-
-mvn nexus-staging:release -B \
-  -DperformRelease=true \
-  --settings=settings.xml \
-  -DstagingRepositoryId=${STAGING_REPOSITORY_ID}
diff --git a/.kokoro/release/publish_javadoc.cfg b/.kokoro/release/publish_javadoc.cfg
deleted file mode 100644
index 76b53b577..000000000
--- a/.kokoro/release/publish_javadoc.cfg
+++ /dev/null
@@ -1,23 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/doc-templates/"
-
-env_vars: {
-  key: "STAGING_BUCKET"
-  value: "docs-staging"
-}
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/publish_javadoc.sh"
-}
-
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 73713
-      keyname: "docuploader_service_account"
-    }
-  }
-}
diff --git a/.kokoro/release/publish_javadoc.sh b/.kokoro/release/publish_javadoc.sh
deleted file mode 100755
index 9bc192791..000000000
--- a/.kokoro/release/publish_javadoc.sh
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/bin/bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-if [[ -z "${CREDENTIALS}" ]]; then
-  CREDENTIALS=${KOKORO_KEYSTORE_DIR}/73713_docuploader_service_account
-fi
-
-if [[ -z "${STAGING_BUCKET}" ]]; then
-  echo "Need to set STAGING_BUCKET environment variable"
-  exit 1
-fi
-
-# work from the git root directory
-pushd $(dirname "$0")/../../
-
-# install docuploader package
-python3 -m pip install --require-hashes -r .kokoro/requirements.txt
-
-# compile all packages
-mvn clean install -B -q -DskipTests=true
-
-export NAME=google-cloud-pubsublite
-export VERSION=$(grep ${NAME}: versions.txt | cut -d: -f3)
-
-# build the docs
-mvn site -B -q
-
-pushd target/site/apidocs
-
-# create metadata
-python3 -m docuploader create-metadata \
-  --name ${NAME} \
-  --version ${VERSION} \
-  --language java
-
-# upload docs
-python3 -m docuploader upload . \
-  --credentials ${CREDENTIALS} \
-  --staging-bucket ${STAGING_BUCKET}
diff --git a/.kokoro/release/publish_javadoc11.cfg b/.kokoro/release/publish_javadoc11.cfg
deleted file mode 100644
index 760282b9e..000000000
--- a/.kokoro/release/publish_javadoc11.cfg
+++ /dev/null
@@ -1,30 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# cloud-rad production
-env_vars: {
-  key: "STAGING_BUCKET_V2"
-  value: "docs-staging-v2"
-}
-
-# Configure the docker image for kokoro-trampoline
-env_vars: {
-  key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
-}
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/publish_javadoc11.sh"
-}
-
-before_action {
-  fetch_keystore {
-    keystore_resource {
-      keystore_config_id: 73713
-      keyname: "docuploader_service_account"
-    }
-  }
-}
-
-# Downloads docfx doclet resource. This will be in ${KOKORO_GFILE_DIR}/<doclet name>
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/docfx"
diff --git a/.kokoro/release/publish_javadoc11.sh b/.kokoro/release/publish_javadoc11.sh
deleted file mode 100755
index 326b0a09c..000000000
--- a/.kokoro/release/publish_javadoc11.sh
+++ /dev/null
@@ -1,63 +0,0 @@
-#!/bin/bash
-# Copyright 2021 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-if [[ -z "${CREDENTIALS}" ]]; then
-  CREDENTIALS=${KOKORO_KEYSTORE_DIR}/73713_docuploader_service_account
-fi
-
-if [[ -z "${STAGING_BUCKET_V2}" ]]; then
-  echo "Need to set STAGING_BUCKET_V2 environment variable"
-  exit 1
-fi
-
-# work from the git root directory
-pushd $(dirname "$0")/../../
-
-# install docuploader package
-python3 -m pip install --require-hashes -r .kokoro/requirements.txt
-
-# compile all packages
-mvn clean install -B -q -DskipTests=true
-
-export NAME=google-cloud-pubsublite
-export VERSION=$(grep ${NAME}: versions.txt | cut -d: -f3)
-
-# cloud RAD generation
-mvn clean javadoc:aggregate -B -q -P docFX
-# include CHANGELOG
-cp CHANGELOG.md target/docfx-yml/history.md
-
-pushd target/docfx-yml
-
-# create metadata
-python3 -m docuploader create-metadata \
- --name ${NAME} \
- --version ${VERSION} \
- --xrefs devsite://java/gax \
- --xrefs devsite://java/google-cloud-core \
- --xrefs devsite://java/api-common \
- --xrefs devsite://java/proto-google-common-protos \
- --xrefs devsite://java/google-api-client \
- --xrefs devsite://java/google-http-client \
- --xrefs devsite://java/protobuf \
- --language java
-
-# upload yml to production bucket
-python3 -m docuploader upload . \
- --credentials ${CREDENTIALS} \
- --staging-bucket ${STAGING_BUCKET_V2} \
- --destination-prefix docfx
diff --git a/.kokoro/release/snapshot.cfg b/.kokoro/release/snapshot.cfg
deleted file mode 100644
index 11e363327..000000000
--- a/.kokoro/release/snapshot.cfg
+++ /dev/null
@@ -1,6 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/snapshot.sh"
-}
\ No newline at end of file
diff --git a/.kokoro/release/snapshot.sh b/.kokoro/release/snapshot.sh
deleted file mode 100755
index 1f55b7702..000000000
--- a/.kokoro/release/snapshot.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-source $(dirname "$0")/common.sh
-MAVEN_SETTINGS_FILE=$(realpath $(dirname "$0")/../../)/settings.xml
-pushd $(dirname "$0")/../../
-
-# ensure we're trying to push a snapshot (no-result returns non-zero exit code)
-grep SNAPSHOT versions.txt
-
-setup_environment_secrets
-create_settings_xml_file "settings.xml"
-
-mvn clean deploy -B \
-  --settings ${MAVEN_SETTINGS_FILE} \
-  -DperformRelease=true \
-  -Dgpg.executable=gpg \
-  -Dgpg.passphrase=${GPG_PASSPHRASE} \
-  -Dgpg.homedir=${GPG_HOMEDIR}
diff --git a/.kokoro/release/stage.cfg b/.kokoro/release/stage.cfg
deleted file mode 100644
index 9869bcd5e..000000000
--- a/.kokoro/release/stage.cfg
+++ /dev/null
@@ -1,19 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-env_vars: {
-  key: "TRAMPOLINE_BUILD_FILE"
-  value: "github/java-pubsublite/.kokoro/release/stage.sh"
-}
-
-# Need to save the properties file
-action {
-  define_artifacts {
-    regex: "github/java-pubsublite/target/nexus-staging/staging/*.properties"
-    strip_prefix: "github/java-pubsublite"
-  }
-}
-
-env_vars: {
-  key: "SECRET_MANAGER_KEYS"
-  value: "releasetool-publish-reporter-app,releasetool-publish-reporter-googleapis-installation,releasetool-publish-reporter-pem"
-}
diff --git a/.kokoro/release/stage.sh b/.kokoro/release/stage.sh
deleted file mode 100755
index 61e714d6b..000000000
--- a/.kokoro/release/stage.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/bin/bash
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-# Start the releasetool reporter
-requirementsFile=$(realpath $(dirname "${BASH_SOURCE[0]}")/../requirements.txt)
-python3 -m pip install --require-hashes -r $requirementsFile
-python3 -m releasetool publish-reporter-script > /tmp/publisher-script; source /tmp/publisher-script
-
-source $(dirname "$0")/common.sh
-source $(dirname "$0")/../common.sh
-MAVEN_SETTINGS_FILE=$(realpath $(dirname "$0")/../../)/settings.xml
-pushd $(dirname "$0")/../../
-
-setup_environment_secrets
-create_settings_xml_file "settings.xml"
-
-# attempt to stage 3 times with exponential backoff (starting with 10 seconds)
-retry_with_backoff 3 10 \
-  mvn clean deploy -B \
-    --settings ${MAVEN_SETTINGS_FILE} \
-    -DskipTests=true \
-    -Dclirr.skip=true \
-    -DperformRelease=true \
-    -Dgpg.executable=gpg \
-    -Dgpg.passphrase=${GPG_PASSPHRASE} \
-    -Dgpg.homedir=${GPG_HOMEDIR}
-
-if [[ -n "${AUTORELEASE_PR}" ]]
-then
-  mvn nexus-staging:release -B \
-    -DperformRelease=true \
-    --settings=settings.xml
-fi
diff --git a/.kokoro/requirements.in b/.kokoro/requirements.in
deleted file mode 100644
index 2092cc741..000000000
--- a/.kokoro/requirements.in
+++ /dev/null
@@ -1,6 +0,0 @@
-gcp-docuploader
-gcp-releasetool>=1.10.5 # required for compatibility with cryptography>=39.x
-wheel
-setuptools
-typing-extensions
-click<8.1.0
\ No newline at end of file
diff --git a/owlbot.py b/owlbot.py
index 92ab341e3..48a492fe9 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -26,6 +26,9 @@
         ".kokoro/*/samples.cfg",
         "samples/install-without-bom/*",
         ".github/workflows/samples.yaml",
+        '.kokoro/requirements.in',
+        '.kokoro/requirements.txt'
+        ".github/CODEOWNERS"
         ".github/CODEOWNERS",
         ".kokoro/presubmit/graalvm-native.cfg",
         ".kokoro/presubmit/graalvm-native-17.cfg"