diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 00000000..c608239d
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,32 @@
+name: Build
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        # 8 is the release JDK; 17 and 21 catch annotation-processor and javac regressions.
+        java: ['8', '17', '21']
+    name: build (JDK ${{ matrix.java }})
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: ${{ matrix.java }}
+          cache: maven
+
+      # The Codename One test runner in tests/javase starts the JavaSE port, which needs a display.
+      - name: Build and test
+        run: xvfb-run -a mvn -B install
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 00000000..52c377a7
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,41 @@
+name: Release
+
+# Publishes to GitHub Packages when a version tag is pushed. update-version.sh creates the tag:
+#   bash update-version.sh 2.0.7 && git push origin master v2.0.7
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '8'
+          cache: maven
+          server-id: github
+          server-username: GITHUB_ACTOR
+          server-password: GITHUB_TOKEN
+
+      - name: Check the tag matches the project version
+        run: |
+          version=$(mvn -B -q help:evaluate -Dexpression=project.version -DforceStdout)
+          if [ "v${version}" != "${GITHUB_REF_NAME}" ]; then
+            echo "::error::Tag ${GITHUB_REF_NAME} does not match project version ${version}"
+            exit 1
+          fi
+
+      - name: Publish to GitHub Packages
+        run: >
+          xvfb-run -a mvn -B deploy
+          -DaltDeploymentRepository=github::default::https://maven.pkg.github.com/${{ github.repository }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/annotations/pom.xml b/annotations/pom.xml
index 608fe8e4..7a8997c8 100644
--- a/annotations/pom.xml
+++ b/annotations/pom.xml
@@ -18,8 +18,8 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.7</maven.compiler.source>
-    <maven.compiler.target>1.7</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
   </properties>
 
   <dependencies>
diff --git a/pom.xml b/pom.xml
index e8ebb0b0..417ff3c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,8 +35,8 @@
     </scm>
 	  
     <properties>
-        <cn1.plugin.version>8.0-SNAPSHOT</cn1.plugin.version>
-        <cn1.version>8.0-SNAPSHOT</cn1.version>
+        <cn1.plugin.version>7.0.273</cn1.plugin.version>
+        <cn1.version>7.0.273</cn1.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	      
         <java.version>1.8</java.version>
@@ -203,11 +203,24 @@
     </build>
     
 			
+    <!-- Codename One releases are published here rather than to Maven Central. -->
     <repositories>
-
+        <repository>
+            <id>codenameone</id>
+            <url>https://repo.codenameone.com/maven2</url>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </repository>
     </repositories>
     <pluginRepositories>
-
+        <pluginRepository>
+            <id>codenameone-plugins</id>
+            <url>https://repo.codenameone.com/maven2</url>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </pluginRepository>
     </pluginRepositories>
 
 
diff --git a/tests/pom.xml b/tests/pom.xml
index a0c73da3..b99d1a54 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -45,8 +45,6 @@
     </distributionManagement>-->
 	  
     <properties>
-        <cn1.version>7.0.22</cn1.version>
-        <cn1.plugin.version>7.0.22</cn1.plugin.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	      
         <java.version>1.8</java.version>