diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index db00d033..e5358424 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -17,17 +17,8 @@ If you are adding a new file it should have a header like below. This
 can be automatically added by running `./mvnw com.mycila:license-maven-plugin:format`.
 
 ```
-/**
- * Copyright 2019 The OpenZipkin Authors
- *
- * 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.
+/*
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
  ```
diff --git a/.github/workflows/create_release.yml b/.github/workflows/create_release.yml
index a759f438..3ef9ce40 100644
--- a/.github/workflows/create_release.yml
+++ b/.github/workflows/create_release.yml
@@ -19,7 +19,6 @@ jobs:
           # Prevent use of implicit GitHub Actions read-only token GITHUB_TOKEN. We don't deploy on
           # the tag MAJOR.MINOR.PATCH event, but we still need to deploy the maven-release-plugin master commit.
           token: ${{ secrets.GH_TOKEN }}
-          fetch-depth: 1  # only need the HEAD commit as license check isn't run
       - name: Setup java
         uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index c5567683..76e2fe4c 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -22,7 +22,6 @@ jobs:
           # Prevent use of implicit GitHub Actions read-only token GITHUB_TOKEN.
           # We push Javadocs to the gh-pages branch on commit.
           token: ${{ secrets.GH_TOKEN }}
-          fetch-depth: 0  # allow build-bin/idl_to_gh_pages to get the full history
       - name: Setup java
         uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/docker_push.yml b/.github/workflows/docker_push.yml
index 14dd23c9..227082a8 100644
--- a/.github/workflows/docker_push.yml
+++ b/.github/workflows/docker_push.yml
@@ -15,8 +15,6 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 1  # only needed to get the sha label
       # Don't attempt to cache Docker. Sensitive information can be stolen
       # via forks, and login session ends up in ~/.docker. This is ok because
       # we publish DOCKER_PARENT_IMAGE to ghcr.io, hence local to the runner.
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f34aa28d..7414bd43 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,8 +22,6 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 0 # full git history for license check
       - name: Setup java
         uses: actions/setup-java@v4
         with:
@@ -52,8 +50,6 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 0 # full git history for license check
       - name: Setup java
         uses: actions/setup-java@v4
         with:
diff --git a/.settings.xml b/.settings.xml
index 93f3548c..ab04d7f5 100644
--- a/.settings.xml
+++ b/.settings.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2020 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <settings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
diff --git a/RELEASE.md b/RELEASE.md
index 7e59bf00..6aa5530b 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -45,23 +45,6 @@ Here's an example of a snapshot deploy with specified credentials.
 $ export GPG_TTY=$(tty) && GPG_PASSPHRASE=whackamole SONATYPE_USER=adrianmole SONATYPE_PASSWORD=ed6f20bde9123bbb2312b221 build-bin/build-bin/maven/maven_deploy
 ```
 
-## First release of the year
-
-The license plugin verifies license headers of files include a copyright notice indicating the years a file was affected.
-This information is taken from git history. There's a once-a-year problem with files that include version numbers (pom.xml).
-When a release tag is made, it increments version numbers, then commits them to git. On the first release of the year,
-further commands will fail due to the version increments invalidating the copyright statement. The way to sort this out is
-the following:
-
-Before you do the first release of the year, move the SNAPSHOT version back and forth from whatever the current is.
-In-between, re-apply the licenses.
-```bash
-$ ./mvnw versions:set -DnewVersion=1.3.3-SNAPSHOT -DgenerateBackupPoms=false
-$ ./mvnw com.mycila:license-maven-plugin:format
-$ ./mvnw versions:set -DnewVersion=1.3.2-SNAPSHOT -DgenerateBackupPoms=false
-$ git commit -am"Adjusts copyright headers for this year"
-```
-
 ## Manually releasing
 
 If for some reason, you lost access to CI or otherwise cannot get automation to work, bear in mind
diff --git a/aws-junit/pom.xml b/aws-junit/pom.xml
index 4b19f2c7..646f598c 100644
--- a/aws-junit/pom.xml
+++ b/aws-junit/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/aws-junit/src/main/java/zipkin2/junit/aws/AmazonSQSExtension.java b/aws-junit/src/main/java/zipkin2/junit/aws/AmazonSQSExtension.java
index d7dc6767..83bec779 100644
--- a/aws-junit/src/main/java/zipkin2/junit/aws/AmazonSQSExtension.java
+++ b/aws-junit/src/main/java/zipkin2/junit/aws/AmazonSQSExtension.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.junit.aws;
 
diff --git a/brave/instrumentation-aws-java-sdk-core/pom.xml b/brave/instrumentation-aws-java-sdk-core/pom.xml
index 1e8e4efa..84ca7500 100644
--- a/brave/instrumentation-aws-java-sdk-core/pom.xml
+++ b/brave/instrumentation-aws-java-sdk-core/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/AwsClientTracing.java b/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/AwsClientTracing.java
index 02aa6f71..31f92449 100644
--- a/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/AwsClientTracing.java
+++ b/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/AwsClientTracing.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws;
 
diff --git a/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/TracingRequestHandler.java b/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/TracingRequestHandler.java
index cfd3fcc2..8553c9bc 100644
--- a/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/TracingRequestHandler.java
+++ b/brave/instrumentation-aws-java-sdk-core/src/main/java/brave/instrumentation/aws/TracingRequestHandler.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws;
 
diff --git a/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/AwsClientTracingTest.java b/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/AwsClientTracingTest.java
index 0f2a39a1..8043bcba 100644
--- a/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/AwsClientTracingTest.java
+++ b/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/AwsClientTracingTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws;
 
diff --git a/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/ITTracingRequestHandler.java b/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/ITTracingRequestHandler.java
index 0bd32f2e..5b1fcbb4 100644
--- a/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/ITTracingRequestHandler.java
+++ b/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/ITTracingRequestHandler.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws;
 
diff --git a/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/TracingRequestHandlerTest.java b/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/TracingRequestHandlerTest.java
index ba9b7756..94e0cad0 100644
--- a/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/TracingRequestHandlerTest.java
+++ b/brave/instrumentation-aws-java-sdk-core/src/test/java/brave/instrumentation/aws/TracingRequestHandlerTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws;
 
diff --git a/brave/instrumentation-aws-java-sdk-sqs/pom.xml b/brave/instrumentation-aws-java-sdk-sqs/pom.xml
index eb2f5ac1..51034812 100644
--- a/brave/instrumentation-aws-java-sdk-sqs/pom.xml
+++ b/brave/instrumentation-aws-java-sdk-sqs/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandler.java b/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandler.java
index a1bdef3b..3e6a68c6 100644
--- a/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandler.java
+++ b/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandler.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws.sqs;
 
diff --git a/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SqsMessageTracing.java b/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SqsMessageTracing.java
index 06cc3201..8bad4ee3 100644
--- a/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SqsMessageTracing.java
+++ b/brave/instrumentation-aws-java-sdk-sqs/src/main/java/brave/instrumentation/aws/sqs/SqsMessageTracing.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws.sqs;
 
diff --git a/brave/instrumentation-aws-java-sdk-sqs/src/test/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandlerTest.java b/brave/instrumentation-aws-java-sdk-sqs/src/test/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandlerTest.java
index b7aa3a11..7d2587c2 100644
--- a/brave/instrumentation-aws-java-sdk-sqs/src/test/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandlerTest.java
+++ b/brave/instrumentation-aws-java-sdk-sqs/src/test/java/brave/instrumentation/aws/sqs/SendMessageTracingRequestHandlerTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.aws.sqs;
 
diff --git a/brave/instrumentation-aws-java-sdk-v2-core/pom.xml b/brave/instrumentation-aws-java-sdk-v2-core/pom.xml
index 60dff2f9..c0307b05 100644
--- a/brave/instrumentation-aws-java-sdk-v2-core/pom.xml
+++ b/brave/instrumentation-aws-java-sdk-v2-core/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/AwsSdkTracing.java b/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/AwsSdkTracing.java
index bcd2e677..ab37bec1 100644
--- a/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/AwsSdkTracing.java
+++ b/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/AwsSdkTracing.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.awsv2;
 
diff --git a/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/TracingExecutionInterceptor.java b/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/TracingExecutionInterceptor.java
index 95e74a86..ff0ca088 100644
--- a/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/TracingExecutionInterceptor.java
+++ b/brave/instrumentation-aws-java-sdk-v2-core/src/main/java/brave/instrumentation/awsv2/TracingExecutionInterceptor.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.awsv2;
 
diff --git a/brave/instrumentation-aws-java-sdk-v2-core/src/test/java/brave/instrumentation/awsv2/ITTracingExecutionInterceptor.java b/brave/instrumentation-aws-java-sdk-v2-core/src/test/java/brave/instrumentation/awsv2/ITTracingExecutionInterceptor.java
index d0e71617..98c32645 100644
--- a/brave/instrumentation-aws-java-sdk-v2-core/src/test/java/brave/instrumentation/awsv2/ITTracingExecutionInterceptor.java
+++ b/brave/instrumentation-aws-java-sdk-v2-core/src/test/java/brave/instrumentation/awsv2/ITTracingExecutionInterceptor.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.instrumentation.awsv2;
 
diff --git a/brave/propagation-aws/pom.xml b/brave/propagation-aws/pom.xml
index 31f476a2..90055098 100644
--- a/brave/propagation-aws/pom.xml
+++ b/brave/propagation-aws/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSExtractor.java b/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSExtractor.java
index d2f60539..dd7da8a9 100644
--- a/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSExtractor.java
+++ b/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSExtractor.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.propagation.aws;
 
diff --git a/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSInjector.java b/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSInjector.java
index d09a621c..3a587fa5 100644
--- a/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSInjector.java
+++ b/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSInjector.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2023 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.propagation.aws;
 
diff --git a/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSPropagation.java b/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSPropagation.java
index a397e32d..6aa19275 100644
--- a/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSPropagation.java
+++ b/brave/propagation-aws/src/main/java/brave/propagation/aws/AWSPropagation.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.propagation.aws;
 
diff --git a/brave/propagation-aws/src/main/java/brave/propagation/aws/HexCodec.java b/brave/propagation-aws/src/main/java/brave/propagation/aws/HexCodec.java
index 33067ac8..4484e6e2 100644
--- a/brave/propagation-aws/src/main/java/brave/propagation/aws/HexCodec.java
+++ b/brave/propagation-aws/src/main/java/brave/propagation/aws/HexCodec.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.propagation.aws;
 
diff --git a/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSInjectorTest.java b/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSInjectorTest.java
index 00a1865a..c10f251e 100644
--- a/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSInjectorTest.java
+++ b/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSInjectorTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.propagation.aws;
 
diff --git a/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSPropagationTest.java b/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSPropagationTest.java
index 4567457e..099f7394 100644
--- a/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSPropagationTest.java
+++ b/brave/propagation-aws/src/test/java/brave/propagation/aws/AWSPropagationTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package brave.propagation.aws;
 
diff --git a/build-bin/README.md b/build-bin/README.md
index 7485af31..62d5bcae 100755
--- a/build-bin/README.md
+++ b/build-bin/README.md
@@ -72,8 +72,6 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 0  # full git history for license check
       - name: Test
         run: |
           build-bin/configure_test
@@ -114,8 +112,6 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 1  # only needed to get the sha label
       - name: Configure Deploy
         run: build-bin/configure_deploy
         env:
diff --git a/build-bin/docker/configure_docker b/build-bin/docker/configure_docker
index ebf7fd92..476ca70f 100755
--- a/build-bin/docker/configure_docker
+++ b/build-bin/docker/configure_docker
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # Defends against build outages caused by Docker Hub (docker.io) pull rate limits.
diff --git a/build-bin/docker/configure_docker_push b/build-bin/docker/configure_docker_push
index fd459a47..c08d5cd0 100755
--- a/build-bin/docker/configure_docker_push
+++ b/build-bin/docker/configure_docker_push
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # Ensures Docker is logged in and it can build multi-architecture.
diff --git a/build-bin/docker/docker_arch b/build-bin/docker/docker_arch
index 04c9cb58..70e091af 100755
--- a/build-bin/docker/docker_arch
+++ b/build-bin/docker/docker_arch
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This script gets a normalized name for the architecture as used in Docker. This will be a subset
diff --git a/build-bin/docker/docker_args b/build-bin/docker/docker_args
index 4d83bb14..e61f0dcb 100755
--- a/build-bin/docker/docker_args
+++ b/build-bin/docker/docker_args
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This builds common docker arguments used by docker_build and docker_push.
diff --git a/build-bin/docker/docker_block_on_health b/build-bin/docker/docker_block_on_health
index 83a3ce99..c2a3b9fa 100755
--- a/build-bin/docker/docker_block_on_health
+++ b/build-bin/docker/docker_block_on_health
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # Blocks until a named docker container with a valid HEALTHCHECK instruction is healthy or not:
diff --git a/build-bin/docker/docker_build b/build-bin/docker/docker_build
index 3dde15e9..cf7363f3 100755
--- a/build-bin/docker/docker_build
+++ b/build-bin/docker/docker_build
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 set -ue
diff --git a/build-bin/docker/docker_push b/build-bin/docker/docker_push
index 7c38d8b9..6aaa3742 100755
--- a/build-bin/docker/docker_push
+++ b/build-bin/docker/docker_push
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This script pushes images to GitHub Container Registry (ghcr.io).
diff --git a/build-bin/docker/docker_test_image b/build-bin/docker/docker_test_image
index 33b7943d..fad9da0d 100755
--- a/build-bin/docker/docker_test_image
+++ b/build-bin/docker/docker_test_image
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # Tests a an image by awaiting its HEALTHCHECK.
diff --git a/build-bin/git/login_git b/build-bin/git/login_git
index f3da0d66..423d7701 100755
--- a/build-bin/git/login_git
+++ b/build-bin/git/login_git
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 set -ue
diff --git a/build-bin/git/version_from_trigger_tag b/build-bin/git/version_from_trigger_tag
index 51256916..61338762 100755
--- a/build-bin/git/version_from_trigger_tag
+++ b/build-bin/git/version_from_trigger_tag
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This script echos a `MAJOR.MINOR.PATCH` version tag based on..
diff --git a/build-bin/gpg/configure_gpg b/build-bin/gpg/configure_gpg
index 39cb0b5b..b7568026 100755
--- a/build-bin/gpg/configure_gpg
+++ b/build-bin/gpg/configure_gpg
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This script prepares GPG, needed to sign jars for Sonatype deployment during `maven_deploy`
diff --git a/build-bin/maven/maven_build b/build-bin/maven/maven_build
index c68194c3..5d1631f4 100755
--- a/build-bin/maven/maven_build
+++ b/build-bin/maven/maven_build
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 set -ue
diff --git a/build-bin/maven/maven_build_or_unjar b/build-bin/maven/maven_build_or_unjar
index 69067a49..8c4920d2 100755
--- a/build-bin/maven/maven_build_or_unjar
+++ b/build-bin/maven/maven_build_or_unjar
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 set -ue
diff --git a/build-bin/maven/maven_deploy b/build-bin/maven/maven_deploy
index f40343ef..c90d2fca 100755
--- a/build-bin/maven/maven_deploy
+++ b/build-bin/maven/maven_deploy
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 set -ue
diff --git a/build-bin/maven/maven_go_offline b/build-bin/maven/maven_go_offline
index b4b403f5..1ce82586 100755
--- a/build-bin/maven/maven_go_offline
+++ b/build-bin/maven/maven_go_offline
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This is a go-offline that properly works with multi-module builds
diff --git a/build-bin/maven/maven_opts b/build-bin/maven/maven_opts
index 3ebbccd6..901f6ac1 100755
--- a/build-bin/maven/maven_opts
+++ b/build-bin/maven/maven_opts
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This script checks each variable value, so it isn't important to fail on unbound (set -u)
diff --git a/build-bin/maven/maven_release b/build-bin/maven/maven_release
index a138c083..df4cdf6a 100755
--- a/build-bin/maven/maven_release
+++ b/build-bin/maven/maven_release
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 set -ue
diff --git a/build-bin/maven/maven_unjar b/build-bin/maven/maven_unjar
index 97894db8..624742ce 100755
--- a/build-bin/maven/maven_unjar
+++ b/build-bin/maven/maven_unjar
@@ -1,16 +1,7 @@
 #!/bin/sh
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # This script gets one jar from Maven, most typically an exec or module jar, extracting its contents
diff --git a/collector/kinesis/pom.xml b/collector/kinesis/pom.xml
index 70c7f10f..9fc5e474 100644
--- a/collector/kinesis/pom.xml
+++ b/collector/kinesis/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisCollector.java b/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisCollector.java
index 24a9a54e..ea5e5dec 100644
--- a/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisCollector.java
+++ b/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisCollector.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.collector.kinesis;
 
diff --git a/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisSpanProcessor.java b/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisSpanProcessor.java
index 891b7c91..f341a00c 100644
--- a/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisSpanProcessor.java
+++ b/collector/kinesis/src/main/java/zipkin2/collector/kinesis/KinesisSpanProcessor.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.collector.kinesis;
 
diff --git a/collector/kinesis/src/test/java/zipkin2/collector/kinesis/KinesisSpanProcessorTest.java b/collector/kinesis/src/test/java/zipkin2/collector/kinesis/KinesisSpanProcessorTest.java
index b73cdaf7..32548207 100644
--- a/collector/kinesis/src/test/java/zipkin2/collector/kinesis/KinesisSpanProcessorTest.java
+++ b/collector/kinesis/src/test/java/zipkin2/collector/kinesis/KinesisSpanProcessorTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.collector.kinesis;
 
diff --git a/collector/sqs/pom.xml b/collector/sqs/pom.xml
index 4195b97b..23cc8cda 100644
--- a/collector/sqs/pom.xml
+++ b/collector/sqs/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSCollector.java b/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSCollector.java
index ee2c4832..88de5e36 100644
--- a/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSCollector.java
+++ b/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSCollector.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.collector.sqs;
 
diff --git a/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSSpanProcessor.java b/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSSpanProcessor.java
index ea975e39..5ce07aa7 100644
--- a/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSSpanProcessor.java
+++ b/collector/sqs/src/main/java/zipkin2/collector/sqs/SQSSpanProcessor.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.collector.sqs;
 
diff --git a/collector/sqs/src/test/java/zipkin2/collector/sqs/ITSQSCollector.java b/collector/sqs/src/test/java/zipkin2/collector/sqs/ITSQSCollector.java
index 35eaedf7..d2d69f82 100644
--- a/collector/sqs/src/test/java/zipkin2/collector/sqs/ITSQSCollector.java
+++ b/collector/sqs/src/test/java/zipkin2/collector/sqs/ITSQSCollector.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.collector.sqs;
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 33698fe6..5d63d12a 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,15 +1,6 @@
 #
-# Copyright 2016-2024 The OpenZipkin Authors
-#
-# 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.
+# Copyright The OpenZipkin Authors
+# SPDX-License-Identifier: Apache-2.0
 #
 
 # zipkin version should match zipkin.version in /pom.xml
diff --git a/module/pom.xml b/module/pom.xml
index d8cbbf72..492feb04 100644
--- a/module/pom.xml
+++ b/module/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/module/src/main/java/zipkin/module/aws/elasticsearch/AWSCredentials.java b/module/src/main/java/zipkin/module/aws/elasticsearch/AWSCredentials.java
index 9bdb95f0..74a405ec 100644
--- a/module/src/main/java/zipkin/module/aws/elasticsearch/AWSCredentials.java
+++ b/module/src/main/java/zipkin/module/aws/elasticsearch/AWSCredentials.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/main/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4.java b/module/src/main/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4.java
index d54a1eaa..2f2ff725 100644
--- a/module/src/main/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4.java
+++ b/module/src/main/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/main/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpoint.java b/module/src/main/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpoint.java
index 05a32dbe..306791a0 100644
--- a/module/src/main/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpoint.java
+++ b/module/src/main/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpoint.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModule.java b/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModule.java
index c390e4e7..e092415e 100644
--- a/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModule.java
+++ b/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModule.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageProperties.java b/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageProperties.java
index ca3197a0..a16d7944 100644
--- a/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageProperties.java
+++ b/module/src/main/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageProperties.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModule.java b/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModule.java
index 4d6b6a17..9ddf2acb 100644
--- a/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModule.java
+++ b/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModule.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.kinesis;
 
diff --git a/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorProperties.java b/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorProperties.java
index ba90f7c5..be36dab6 100644
--- a/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorProperties.java
+++ b/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorProperties.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.kinesis;
 
diff --git a/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCredentialsConfiguration.java b/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCredentialsConfiguration.java
index 7b2a895b..1db4f2ca 100644
--- a/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCredentialsConfiguration.java
+++ b/module/src/main/java/zipkin/module/aws/kinesis/ZipkinKinesisCredentialsConfiguration.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.kinesis;
 
diff --git a/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModule.java b/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModule.java
index 59884947..91af483b 100644
--- a/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModule.java
+++ b/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModule.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.sqs;
 
diff --git a/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorProperties.java b/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorProperties.java
index d47f8554..e67b59fe 100644
--- a/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorProperties.java
+++ b/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCollectorProperties.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.sqs;
 
diff --git a/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCredentialsConfiguration.java b/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCredentialsConfiguration.java
index 7f39895a..5c396a15 100644
--- a/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCredentialsConfiguration.java
+++ b/module/src/main/java/zipkin/module/aws/sqs/ZipkinSQSCredentialsConfiguration.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.sqs;
 
diff --git a/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageModule.java b/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageModule.java
index 669c1c9e..3331a11f 100644
--- a/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageModule.java
+++ b/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageModule.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.xray;
 
diff --git a/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageProperties.java b/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageProperties.java
index f547e27b..9e852c3b 100644
--- a/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageProperties.java
+++ b/module/src/main/java/zipkin/module/aws/xray/ZipkinXRayStorageProperties.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.xray;
 
diff --git a/module/src/test/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4Test.java b/module/src/test/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4Test.java
index 5bc183c4..6723960d 100644
--- a/module/src/test/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4Test.java
+++ b/module/src/test/java/zipkin/module/aws/elasticsearch/AWSSignatureVersion4Test.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/test/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpointTest.java b/module/src/test/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpointTest.java
index e6836f28..337677b5 100644
--- a/module/src/test/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpointTest.java
+++ b/module/src/test/java/zipkin/module/aws/elasticsearch/ElasticsearchDomainEndpointTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/test/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModuleTest.java b/module/src/test/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModuleTest.java
index 0a8ded43..21632f5d 100644
--- a/module/src/test/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModuleTest.java
+++ b/module/src/test/java/zipkin/module/aws/elasticsearch/ZipkinElasticsearchAwsStorageModuleTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.elasticsearch;
 
diff --git a/module/src/test/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModuleTest.java b/module/src/test/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModuleTest.java
index f21b15ac..f7f70c00 100644
--- a/module/src/test/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModuleTest.java
+++ b/module/src/test/java/zipkin/module/aws/kinesis/ZipkinKinesisCollectorModuleTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.kinesis;
 
diff --git a/module/src/test/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModuleTest.java b/module/src/test/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModuleTest.java
index f7a36882..809f7a09 100644
--- a/module/src/test/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModuleTest.java
+++ b/module/src/test/java/zipkin/module/aws/sqs/ZipkinSQSCollectorModuleTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.sqs;
 
diff --git a/module/src/test/java/zipkin/module/aws/xray/ZipkinXRayStorageModuleTest.java b/module/src/test/java/zipkin/module/aws/xray/ZipkinXRayStorageModuleTest.java
index d53c587f..981d6102 100644
--- a/module/src/test/java/zipkin/module/aws/xray/ZipkinXRayStorageModuleTest.java
+++ b/module/src/test/java/zipkin/module/aws/xray/ZipkinXRayStorageModuleTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin.module.aws.xray;
 
diff --git a/pom.xml b/pom.xml
index 0da606f4..6e8e44f0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/reporter/reporter-xray-udp/pom.xml b/reporter/reporter-xray-udp/pom.xml
index 71db6aad..d2f07b66 100644
--- a/reporter/reporter-xray-udp/pom.xml
+++ b/reporter/reporter-xray-udp/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/reporter/reporter-xray-udp/src/main/java/zipkin2/reporter/xray_udp/XRayUDPReporter.java b/reporter/reporter-xray-udp/src/main/java/zipkin2/reporter/xray_udp/XRayUDPReporter.java
index 51c1cd93..f042e83c 100644
--- a/reporter/reporter-xray-udp/src/main/java/zipkin2/reporter/xray_udp/XRayUDPReporter.java
+++ b/reporter/reporter-xray-udp/src/main/java/zipkin2/reporter/xray_udp/XRayUDPReporter.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.xray_udp;
 
diff --git a/reporter/reporter-xray-udp/src/test/java/zipkin2/reporter/xray_udp/XRayUDPReporterTest.java b/reporter/reporter-xray-udp/src/test/java/zipkin2/reporter/xray_udp/XRayUDPReporterTest.java
index d603c6dd..6b84abd1 100644
--- a/reporter/reporter-xray-udp/src/test/java/zipkin2/reporter/xray_udp/XRayUDPReporterTest.java
+++ b/reporter/reporter-xray-udp/src/test/java/zipkin2/reporter/xray_udp/XRayUDPReporterTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.xray_udp;
 
diff --git a/reporter/reporter-xray-udp/src/test/java/zipkin2/storage/xray_udp/InternalStorageAccess.java b/reporter/reporter-xray-udp/src/test/java/zipkin2/storage/xray_udp/InternalStorageAccess.java
index 12dbce58..d5232772 100644
--- a/reporter/reporter-xray-udp/src/test/java/zipkin2/storage/xray_udp/InternalStorageAccess.java
+++ b/reporter/reporter-xray-udp/src/test/java/zipkin2/storage/xray_udp/InternalStorageAccess.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.storage.xray_udp;
 
diff --git a/reporter/sender-awssdk-sqs/pom.xml b/reporter/sender-awssdk-sqs/pom.xml
index 4b79d8cc..91b00cd2 100644
--- a/reporter/sender-awssdk-sqs/pom.xml
+++ b/reporter/sender-awssdk-sqs/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/AbstractSender.java b/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/AbstractSender.java
index 3979de1a..fb9529f5 100644
--- a/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/AbstractSender.java
+++ b/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/AbstractSender.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.awssdk.sqs;
 
diff --git a/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSender.java b/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSender.java
index adb2bc45..7bd9d4b6 100644
--- a/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSender.java
+++ b/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSender.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.awssdk.sqs;
 
diff --git a/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSSender.java b/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSSender.java
index 212e0a6f..e2739d1e 100644
--- a/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSSender.java
+++ b/reporter/sender-awssdk-sqs/src/main/java/zipkin2/reporter/awssdk/sqs/SQSSender.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.awssdk.sqs;
 
diff --git a/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSenderTest.java b/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSenderTest.java
index bc293364..a019dec1 100644
--- a/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSenderTest.java
+++ b/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSAsyncSenderTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.awssdk.sqs;
 
diff --git a/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSSenderTest.java b/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSSenderTest.java
index 3c32754d..16c9df8d 100644
--- a/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSSenderTest.java
+++ b/reporter/sender-awssdk-sqs/src/test/java/zipkin2/reporter/awssdk/sqs/SQSSenderTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.awssdk.sqs;
 
diff --git a/reporter/sender-kinesis/pom.xml b/reporter/sender-kinesis/pom.xml
index 07a83984..5621f095 100644
--- a/reporter/sender-kinesis/pom.xml
+++ b/reporter/sender-kinesis/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/reporter/sender-kinesis/src/main/java/zipkin2/reporter/kinesis/KinesisSender.java b/reporter/sender-kinesis/src/main/java/zipkin2/reporter/kinesis/KinesisSender.java
index 5328a751..129b169f 100644
--- a/reporter/sender-kinesis/src/main/java/zipkin2/reporter/kinesis/KinesisSender.java
+++ b/reporter/sender-kinesis/src/main/java/zipkin2/reporter/kinesis/KinesisSender.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.kinesis;
 
diff --git a/reporter/sender-kinesis/src/test/java/zipkin2/reporter/kinesis/KinesisSenderTest.java b/reporter/sender-kinesis/src/test/java/zipkin2/reporter/kinesis/KinesisSenderTest.java
index c0970b00..39ee804b 100644
--- a/reporter/sender-kinesis/src/test/java/zipkin2/reporter/kinesis/KinesisSenderTest.java
+++ b/reporter/sender-kinesis/src/test/java/zipkin2/reporter/kinesis/KinesisSenderTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.kinesis;
 
diff --git a/reporter/sender-sqs/pom.xml b/reporter/sender-sqs/pom.xml
index 12ed784a..eca28b41 100644
--- a/reporter/sender-sqs/pom.xml
+++ b/reporter/sender-sqs/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/reporter/sender-sqs/src/main/java/zipkin2/reporter/sqs/SQSSender.java b/reporter/sender-sqs/src/main/java/zipkin2/reporter/sqs/SQSSender.java
index 450619a1..0105d3d5 100644
--- a/reporter/sender-sqs/src/main/java/zipkin2/reporter/sqs/SQSSender.java
+++ b/reporter/sender-sqs/src/main/java/zipkin2/reporter/sqs/SQSSender.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.sqs;
 
diff --git a/reporter/sender-sqs/src/test/java/zipkin2/reporter/sqs/SQSSenderTest.java b/reporter/sender-sqs/src/test/java/zipkin2/reporter/sqs/SQSSenderTest.java
index b4bf7963..a05718d1 100644
--- a/reporter/sender-sqs/src/test/java/zipkin2/reporter/sqs/SQSSenderTest.java
+++ b/reporter/sender-sqs/src/test/java/zipkin2/reporter/sqs/SQSSenderTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.reporter.sqs;
 
diff --git a/src/etc/header.txt b/src/etc/header.txt
index 6dba3bdf..fe602a38 100644
--- a/src/etc/header.txt
+++ b/src/etc/header.txt
@@ -1,11 +1,2 @@
-Copyright ${license.git.copyrightYears} The OpenZipkin Authors
-
-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.
+Copyright The OpenZipkin Authors
+SPDX-License-Identifier: Apache-2.0
diff --git a/storage/xray-udp/pom.xml b/storage/xray-udp/pom.xml
index f408431c..adaefeea 100644
--- a/storage/xray-udp/pom.xml
+++ b/storage/xray-udp/pom.xml
@@ -1,17 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2024 The OpenZipkin Authors
-
-    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.
+    Copyright The OpenZipkin Authors
+    SPDX-License-Identifier: Apache-2.0
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/UDPMessageEncoder.java b/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/UDPMessageEncoder.java
index b8358a7d..2fc82a46 100644
--- a/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/UDPMessageEncoder.java
+++ b/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/UDPMessageEncoder.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2020 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.storage.xray_udp;
 
diff --git a/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/XRayUDPStorage.java b/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/XRayUDPStorage.java
index f2b14007..524fec03 100644
--- a/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/XRayUDPStorage.java
+++ b/storage/xray-udp/src/main/java/zipkin2/storage/xray_udp/XRayUDPStorage.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.storage.xray_udp;
 
diff --git a/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/UDPMessageEncoderTest.java b/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/UDPMessageEncoderTest.java
index 4c31a8b5..8bcf7941 100644
--- a/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/UDPMessageEncoderTest.java
+++ b/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/UDPMessageEncoderTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.storage.xray_udp;
 
diff --git a/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/XRayUDPStorageTest.java b/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/XRayUDPStorageTest.java
index 039dc73f..577ba54d 100644
--- a/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/XRayUDPStorageTest.java
+++ b/storage/xray-udp/src/test/java/zipkin2/storage/xray_udp/XRayUDPStorageTest.java
@@ -1,15 +1,6 @@
 /*
- * Copyright 2016-2024 The OpenZipkin Authors
- *
- * 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.
+ * Copyright The OpenZipkin Authors
+ * SPDX-License-Identifier: Apache-2.0
  */
 package zipkin2.storage.xray_udp;