diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index a0c0cd49..fca7c299 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -37,6 +37,16 @@ branchProtectionRules:
     - "units (8)"
     - "units (11)"
     - "Kokoro - Test: Integration"
+    - "dependencies (8, java-bigquery)"
+    - "dependencies (8, java-bigqueryconnection)"
+    - "dependencies (8, java-spanner)"
+    - "dependencies (8, java-storage)"
+    - "dependencies (8, java-pubsub)"
+    - "dependencies (11, java-bigquery)"
+    - "dependencies (11, java-bigqueryconnection)"
+    - "dependencies (11, java-spanner)"
+    - "dependencies (11, java-storage)"
+    - "dependencies (11, java-pubsub)"
     - "cla/google"
 # List of explicit permissions to add (additive only)
 permissionRules:
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 0195b32f..65ae6ecd 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [7, 8, 11]
+        java: [8, 11]
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-java@v1
diff --git a/.github/workflows/downstream.yaml b/.github/workflows/downstream.yaml
new file mode 100644
index 00000000..f28021e4
--- /dev/null
+++ b/.github/workflows/downstream.yaml
@@ -0,0 +1,26 @@
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+name: downstream
+jobs:
+  dependencies:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        java: [8, 11]
+        repo:
+        - java-bigqueryconnection
+        - java-spanner
+        - java-storage
+        - java-pubsub
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: ${{matrix.java}}
+    - run: java -version
+    - run: sudo apt-get install libxml2-utils
+    - run: .kokoro/client-library-check.sh ${{matrix.repo}}
diff --git a/.kokoro/client-library-check.sh b/.kokoro/client-library-check.sh
new file mode 100755
index 00000000..03cee53b
--- /dev/null
+++ b/.kokoro/client-library-check.sh
@@ -0,0 +1,65 @@
+#!/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.
+
+# Presubmit to ensure the dependencies of the Google Libraries BOM, with the modification of change
+# in the PR, pick up the highest versions among transitive dependencies.
+# https://maven.apache.org/enforcer/enforcer-rules/requireUpperBoundDeps.html
+
+set -eo pipefail
+# Display commands being run.
+set -x
+
+if [[ $# -lt 1 ]];
+then
+  echo "Usage: $0 <repo-name>"
+  exit 1
+fi
+REPO=$1
+
+## Get the directory of the build script
+scriptDir=$(realpath $(dirname "${BASH_SOURCE[0]}"))
+## cd to the parent directory, i.e. the root of the git repo
+cd ${scriptDir}/..
+
+# Make artifacts available for 'mvn validate' at the bottom
+mvn install -DskipTests=true -Dmaven.javadoc.skip=true -Dgcloud.download.skip=true -B -V -q
+
+# Read the current version of this BOM in the POM. Example version: '0.116.1-alpha-SNAPSHOT'
+VERSION_POM=pom.xml
+# Namespace (xmlns) prevents xmllint from specifying tag names in XPath
+VERSION=`sed -e 's/xmlns=".*"//' ${VERSION_POM} | xmllint --xpath '/project/version/text()' -`
+
+if [ -z "${VERSION}" ]; then
+  echo "Version is not found in ${VERSION_POM}"
+  exit 1
+fi
+echo "Version: ${VERSION}"
+
+# Check this BOM against a few java client libraries
+# java-bigquery
+git clone "https://github.com/googleapis/${REPO}.git" --depth=1
+pushd ${REPO}
+
+# replace version
+xmllint --shell <(cat pom.xml) << EOF
+setns x=http://maven.apache.org/POM/4.0.0
+cd .//x:artifactId[text()="google-cloud-shared-config"]
+cd ../x:version
+set ${VERSION}
+save pom.xml
+EOF
+
+# run dependencies script
+.kokoro/dependencies.sh
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9738f8d9..9b116a35 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [1.0.0](https://www.github.com/googleapis/java-shared-config/compare/v0.13.1...v1.0.0) (2021-07-29)
+
+
+### ⚠ BREAKING CHANGES
+
+* update shared-config to java 1.8 (#277)
+
+### Features
+
+* update shared-config to java 1.8 ([#277](https://www.github.com/googleapis/java-shared-config/issues/277)) ([9c297a2](https://www.github.com/googleapis/java-shared-config/commit/9c297a27bc236092aab3ae292c7bed206293bc51))
+
 ### [0.13.1](https://www.github.com/googleapis/java-shared-config/compare/v0.13.0...v0.13.1) (2021-07-27)
 
 
diff --git a/README.md b/README.md
index 1112cb9c..c5483137 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ If you are using Maven, use this artifact as your project's parent.
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>0.13.1</version>
+    <version>1.0.0</version>
   </parent>
 </project>
 ```
diff --git a/pom.xml b/pom.xml
index c0295115..2800a63a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-shared-config</artifactId>
   <packaging>pom</packaging>
-  <version>0.13.1</version><!-- {x-version-update:google-cloud-shared-config:current} -->
+  <version>1.0.0</version><!-- {x-version-update:google-cloud-shared-config:current} -->
   <name>Google Cloud</name>
   <url>https://github.com/googleapis/java-shared-config</url>
   <description>
@@ -171,8 +171,8 @@
           <artifactId>maven-compiler-plugin</artifactId>
           <version>3.8.1</version>
           <configuration>
-            <source>1.7</source>
-            <target>1.7</target>
+            <source>1.8</source>
+            <target>1.8</target>
             <encoding>UTF-8</encoding>
             <compilerArgument>-Xlint:unchecked</compilerArgument>
             <compilerArgument>-Xlint:deprecation</compilerArgument>
@@ -410,6 +410,25 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>animal-sniffer-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>java8</id>
+            <goals>
+              <goal>check</goal>
+            </goals>
+            <configuration>
+              <signature>
+                <groupId>org.codehaus.mojo.signature</groupId>
+                <artifactId>java18</artifactId>
+                <version>1.0</version>
+              </signature>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
 
@@ -711,45 +730,6 @@
       </reporting>
     </profile>
     
-    <profile>
-      <id>autovalue-java7</id>
-      <activation>
-        <jdk>1.7</jdk>
-        <file>
-          <exists>${basedir}/EnableAutoValue.txt</exists>
-        </file>
-      </activation>
-      <properties>
-        <!--
-        We need to back pin to 1.4 because it is the last version of auto-value
-        that was compiled for java 1.7.
-        -->
-        <auto-value.version>1.4</auto-value.version>
-      </properties>
-      <build>
-        <plugins>
-          <plugin>
-            <artifactId>maven-compiler-plugin</artifactId>
-            <configuration>
-              <annotationProcessorPaths>
-                <path>
-                  <groupId>com.google.auto.value</groupId>
-                  <artifactId>auto-value</artifactId>
-                  <version>${auto-value.version}</version>
-                </path>
-                <!--
-                There is currently no available version of auto-service-annotations
-                in maven central compiled for java 1.7, so we can't include it here.
-
-                If you're using IntelliJ please use a newer jdk and set the language
-                level to 1.7 for your dev work.
-                -->
-              </annotationProcessorPaths>
-            </configuration>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
     <profile>
       <id>autovalue-java8</id>
       <activation>
diff --git a/synth.metadata b/synth.metadata
index 9143a0ce..3511987b 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-shared-config.git",
-        "sha": "4d152461a5592940a8be762c7a8698a02dbe26cf"
+        "sha": "7a5f7dba61f247f34ce66d1d116796bbfa87133b"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "5d3c52f5db664eee9026db76b5bcb466f3a09ca9"
+        "sha": "1a2878d6909dd10ca4e3c1b5943d6622e996054e"
       }
     }
   ],
diff --git a/versions.txt b/versions.txt
index 2a442d51..d2ec6181 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-shared-config:0.13.1:0.13.1
+google-cloud-shared-config:1.0.0:1.0.0