diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 8590706..9c21a92 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -2,11 +2,10 @@ name: Publish
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ 'master' ]
     paths-ignore:
       - '.github/workflows/**'
       - 'README.md'
-      - 'settings.gradle'
 
 permissions:
   contents: read
@@ -16,9 +15,14 @@ jobs:
     uses: MinecraftForge/SharedActions/.github/workflows/gradle.yml@v0
     with:
       java: 17
-      gradle_tasks: "check publishPlugins"
+      gradle_tasks: "check publish publishPlugins"
     secrets:
       DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
+      PROMOTE_ARTIFACT_WEBHOOK: ${{ secrets.PROMOTE_ARTIFACT_WEBHOOK }}
+      PROMOTE_ARTIFACT_USERNAME: ${{ secrets.PROMOTE_ARTIFACT_USERNAME }}
+      PROMOTE_ARTIFACT_PASSWORD: ${{ secrets.PROMOTE_ARTIFACT_PASSWORD }}
+      MAVEN_USER: ${{ secrets.MAVEN_USER }}
+      MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
       GRADLE_PUBLISH_KEY: ${{ secrets.GRADLE_PUBLISH_KEY }}
       GRADLE_PUBLISH_SECRET: ${{ secrets.GRADLE_PUBLISH_SECRET }}
       GRADLE_CACHE_KEY: ${{ secrets.GRADLE_CACHE_KEY }}
diff --git a/LICENSE-header.txt b/LICENSE-header.txt
new file mode 100644
index 0000000..36d6143
--- /dev/null
+++ b/LICENSE-header.txt
@@ -0,0 +1,3 @@
+Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
+Forked by Forge Development LLC and contributors
+SPDX-License-Identifier: MIT
diff --git a/build.gradle b/build.gradle
index 2af7b55..6d9f888 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,4 +1,4 @@
-import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import org.gradle.api.attributes.plugin.GradlePluginApiVersion
 import org.gradle.api.plugins.jvm.JvmTestSuite
 
 plugins {
@@ -8,32 +8,73 @@ plugins {
     id 'idea'
     id 'eclipse'
     id 'maven-publish'
-    id 'net.minecraftforge.licenser' version '1.1.1'
-    id 'net.minecraftforge.gradleutils' version '2.5.1'
-    id 'com.gradle.plugin-publish' version '1.3.1'
-    id 'com.gradleup.shadow' version '8.3.6'
+    alias libs.plugins.gradleutils
+    alias libs.plugins.gitversion
+    alias libs.plugins.changelog
+    alias libs.plugins.licenser
+    alias libs.plugins.plugin.publish
 }
 
 final projectDisplayName = 'Forge Licenser'
+final projectArtifactId = base.archivesName = 'licenser'
 description = 'A simple license header manager for Gradle - Fork of org.cadixdev.licenser'
 group = 'net.minecraftforge'
 version = gitversion.tagOffset
 
 println "Version: $version"
 
-java.toolchain.languageVersion = JavaLanguageVersion.of(8)
+java {
+    toolchain.languageVersion = JavaLanguageVersion.of(8)
+    withSourcesJar()
 
-repositories {
-    gradlePluginPortal()
+    // TODO [Licenser][2.0] Re-enable with Licenser 2.0 when migrating public API from Groovy to Java
+    //  Gradle's Groovydoc task does not fork the JVM and uses the daemon JVM to run the Groovydoc ant task
+    //  This project is built with a version of Groovy so old that its Groovydoc runtime cannot handle Java 17, Gradle 9's minimum
+    //withJavadocJar()
+}
+
+configurations {
+    // Applies the "Gradle Plugin API Version" attribute to configuration
+    // This was added in Gradle 7, gives consumers useful errors if they are on an old version
+    def applyGradleVersionAttribute = { Configuration configuration ->
+        configuration.attributes {
+            attribute(GradlePluginApiVersion.GRADLE_PLUGIN_API_VERSION_ATTRIBUTE, objects.named(GradlePluginApiVersion, libs.versions.gradle.get()))
+        }
+    }
+
+    named('runtimeElements', applyGradleVersionAttribute)
+}
+
+dependencies {
+    // Static Analysis
+    compileOnly libs.nulls
+
+    // Gradle API
+    compileOnly libs.gradle
 }
 
 license {
-    include '**/*.java'
-    include '**/*.groovy'
+    header = rootProject.file('LICENSE-header.txt')
+    newLine = false
+    exclude '**/*.properties'
+}
+
+tasks.named('jar', Jar) {
+    archiveClassifier = 'thin'
+}
+
+tasks.withType(GroovyCompile).configureEach {
+    groovyOptions.optimizationOptions.indy = true
+}
+
+/*
+tasks.named('javadoc', Javadoc) {
+    enabled = false
 }
 
-javadoc.enabled = false
-groovydoc.use = true
+tasks.named('groovydoc', Groovydoc) {
+    use = true
+}
 
 // javadocJar is created after evaluation, so we need to configure it here
 afterEvaluate {
@@ -42,32 +83,44 @@ afterEvaluate {
         from groovydoc.destinationDir
     }
 }
+ */
 
 testing {
-    suites.configureEach { JvmTestSuite suite ->
+    def suiteSpec = { JvmTestSuite suite ->
         suite.dependencies {
             implementation.add project()
-            implementation.add gradleTestKit()
-            libs.bundles.spock.get().forEach { dependency ->
-                implementation.add dependency
-            }
+            implementation.add testLibs.gradle
+            compileOnly.add libs.nulls
+            implementation.bundle testLibs.bundles.spock
         }
 
-        suite.useJUnitJupiter(libs.junit.get().version)
+        suite.useJUnitJupiter(testLibs.versions.junit)
 
         suite.targets.configureEach {
             testTask.configure {
-                shouldRunAfter test
+                shouldRunAfter tasks.named('test')
+            }
+        }
+
+        // Remove's Gradle's local test kit since we are supplying our own
+        afterEvaluate { project ->
+            project.configurations.named(suite.sources.implementationConfigurationName) {
+                dependencies.remove(project.dependencies.gradleTestKit())
             }
         }
     }
 
-    suites.named('test', JvmTestSuite)
-    suites.register('functionalTest', JvmTestSuite)
+    suites.named('test', JvmTestSuite, suiteSpec)
+    suites.register('functionalTest', JvmTestSuite, suiteSpec)
+}
+
+changelog {
+    from '1.0'
+    publishAll = false
 }
 
 gradlePlugin {
-    testSourceSets sourceSets.functionalTest
+    testSourceSet sourceSets.functionalTest
 
     website = gitversion.url
     vcsUrl = gitversion.url + '.git'
@@ -81,36 +134,27 @@ gradlePlugin {
     }
 }
 
-tasks.named('jar', Jar) {
-    archiveClassifier = 'thin'
-}
-
-tasks.named('shadowJar', ShadowJar) {
-    enableRelocation = true
-    archiveClassifier = null
-    relocationPrefix = 'net.minecraftforge.licenser.shadow'
-}
-
 publishing {
     publications.register('pluginMaven', MavenPublication) {
+        artifactId = projectArtifactId
+        changelog.publish it
+
         pom { pom ->
-            artifactId = project.name
             name = projectDisplayName
             description = project.description
 
-            gradleutils.pom.gitHubDetails = pom
+            gradleutils.pom.addRemoteDetails(pom)
 
-            license gradleutils.pom.licenses.MIT
+            licenses {
+                license gradleutils.pom.licenses.MIT
+            }
         }
     }
 
     repositories {
-        // TODO [Licenser] Use publishing Forge maven?
-        maven {
-            name = 'localFolder'
-            url = 'file://' + file('build/repo').absolutePath
-        }
+        maven gradleutils.publishingForgeMaven
     }
 }
 
 idea.module { downloadSources = downloadJavadoc = true }
+eclipse.classpath { downloadSources = downloadJavadoc = true }
diff --git a/gradle.properties b/gradle.properties
index 27af0d6..395f414 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,17 +11,17 @@ org.gradle.parallel=true
 org.gradle.configureondemand=true
 
 # Configuration Cache
-# TODO [Licenser][Gradle9] Re-enable in Gradle 9 (if updated)
 # https://docs.gradle.org/current/userguide/configuration_cache.html
-#org.gradle.configuration-cache=true
+org.gradle.configuration-cache=true
 
 # Parallel configuration caching
-# TODO [Licenser][Gradle9] Re-enable in Gradle 9 (if updated)
 # https://docs.gradle.org/current/userguide/configuration_cache.html#config_cache:usage:parallel
-#org.gradle.configuration-cache.parallel=true
+org.gradle.configuration-cache.parallel=true
 
 # Ignoring problems with configuration cache
 # Fixes issues with core plugins (publish, idea, eclipse, etc.) that are not compatible with the configuration cache
-# TODO [Licenser][Gradle9] Re-enable in Gradle 9 (if updated)
 # https://docs.gradle.org/current/userguide/configuration_cache.html#config_cache:usage:ignore_problems
-#org.gradle.configuration-cache.problems=warn
+org.gradle.configuration-cache.problems=warn
+
+# Suppresses adding Gradle's own API dependency with the 'java-gradle-plugin' plugin
+systemProp.org.gradle.unsafe.suppress-gradle-api=true
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index d64cd49..9bbc975 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 37f853b..2a84e18 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index 1aa94a4..faf9300 100755
--- a/gradlew
+++ b/gradlew
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -84,7 +86,7 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -203,7 +205,7 @@ fi
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
 #     and any embedded shellness will be escaped.
 #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
 #     treated as '${Hostname}' itself on the command line.
diff --git a/gradlew.bat b/gradlew.bat
index 93e3f59..9d21a21 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
@@ -43,11 +45,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -57,11 +59,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
diff --git a/settings.gradle b/settings.gradle
index 5bc9910..90cb742 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,16 +1,63 @@
+pluginManagement {
+    repositories {
+        //mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url = 'https://maven.minecraftforge.net/' }
+    }
+}
+
 plugins {
-    id 'org.gradle.toolchains.foojay-resolver-convention' version '0.9.0'
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '1.0.0' // https://plugins.gradle.org/plugin/org.gradle.toolchains.foojay-resolver-convention
 }
 
 rootProject.name = 'licenser'
 
 //@formatter:off
-dependencyResolutionManagement.versionCatalogs.register('libs') {
-    // Testing
-    version 'spock', '2.3-groovy-3.0'
-    library 'spock-core',   'org.spockframework', 'spock-core'   versionRef 'spock'
-    library 'spock-junit4', 'org.spockframework', 'spock-junit4' versionRef 'spock'
-    bundle  'spock', ['spock-core', 'spock-junit4']
-    library 'junit',        'junit',              'junit'      version '4.13.2'
+dependencyResolutionManagement {
+    repositories {
+        //mavenLocal()
+        mavenCentral()
+        maven { url = 'https://maven.moddinglegacy.com' } // Gradle API
+    }
+
+    versionCatalogs {
+        final gradle = '7.0.2'
+
+        register('libs') {
+            version 'gitversion-gradle', '3.0.0-beta.19'
+
+            plugin 'licenser',       'net.minecraftforge.licenser'    version '1.2.0'         // https://plugins.gradle.org/plugin/net.minecraftforge.licenser
+            plugin 'gradleutils',    'net.minecraftforge.gradleutils' version '3.0.0-beta.20' // https://plugins.gradle.org/plugin/net.minecraftforge.gradleutils
+            plugin 'gitversion',     'net.minecraftforge.gitversion'  version '3.0.0-beta.19' // https://plugins.gradle.org/plugin/net.minecraftforge.gitversion
+            plugin 'changelog',      'net.minecraftforge.changelog'   version '3.0.0-beta.19' // https://plugins.gradle.org/plugin/net.minecraftforge.changelog
+            plugin 'plugin-publish', 'com.gradle.plugin-publish'      version '1.3.1'         // https://plugins.gradle.org/plugin/com.gradle.plugin-publish
+
+            // Static Analysis
+            library 'nulls', 'org.jetbrains', 'annotations' version '26.0.2'
+
+            // Gradle API
+            // Original: https://github.com/remal-gradle-api/packages/packages/760197?version=7.0.2
+            // Mirror:   https://repos.moddinglegacy.com/#/modding-legacy/name/remal/gradle-api/gradle-api/7.0.2
+            version 'gradle', gradle
+            library 'gradle', 'name.remal.gradle-api', 'gradle-api'  versionRef 'gradle'
+        }
+
+        register('testLibs') {
+            // Gradle Test Kit
+            // Original: https://github.com/remal-gradle-api/packages/packages/760199?version=7.0.2
+            // Mirror:   https://repos.moddinglegacy.com/#/modding-legacy/name/remal/gradle-api/gradle-test-kit/7.0.2
+            library 'gradle', 'name.remal.gradle-api', 'gradle-test-kit' version gradle
+
+            // Spock
+            version 'spock', '2.3-groovy-3.0'
+            library 'spock-core',   'org.spockframework', 'spock-core'   versionRef 'spock'
+            library 'spock-junit4', 'org.spockframework', 'spock-junit4' versionRef 'spock'
+            bundle  'spock', ['spock-core', 'spock-junit4']
+
+            // JUnit (Dependency artifact managed by JvmTestSuite)
+            version 'junit', '4.13.2'
+        }
+    }
 }
 //@formatter:on
diff --git a/src/functionalTest/groovy/net/minecraftforge/licenser/LicenserPluginFunctionalTest.groovy b/src/functionalTest/groovy/net/minecraftforge/licenser/LicenserPluginFunctionalTest.groovy
index 63aa4e5..6c4aeb9 100644
--- a/src/functionalTest/groovy/net/minecraftforge/licenser/LicenserPluginFunctionalTest.groovy
+++ b/src/functionalTest/groovy/net/minecraftforge/licenser/LicenserPluginFunctionalTest.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import org.gradle.testkit.runner.GradleRunner
diff --git a/src/main/groovy/net/minecraftforge/licenser/LicenseExtension.groovy b/src/main/groovy/net/minecraftforge/licenser/LicenseExtension.groovy
index 3a25486..0944da6 100644
--- a/src/main/groovy/net/minecraftforge/licenser/LicenseExtension.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/LicenseExtension.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import groovy.transform.PackageScope
diff --git a/src/main/groovy/net/minecraftforge/licenser/LicenseProperties.groovy b/src/main/groovy/net/minecraftforge/licenser/LicenseProperties.groovy
index 51d993a..23a7ce9 100644
--- a/src/main/groovy/net/minecraftforge/licenser/LicenseProperties.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/LicenseProperties.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import org.gradle.api.model.ObjectFactory
diff --git a/src/main/groovy/net/minecraftforge/licenser/LicenseTaskProperties.groovy b/src/main/groovy/net/minecraftforge/licenser/LicenseTaskProperties.groovy
index 567d0d3..6744fdb 100644
--- a/src/main/groovy/net/minecraftforge/licenser/LicenseTaskProperties.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/LicenseTaskProperties.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import groovy.transform.PackageScope
diff --git a/src/main/groovy/net/minecraftforge/licenser/LicenseViolationException.java b/src/main/groovy/net/minecraftforge/licenser/LicenseViolationException.java
index 1a08fe0..e769a94 100644
--- a/src/main/groovy/net/minecraftforge/licenser/LicenseViolationException.java
+++ b/src/main/groovy/net/minecraftforge/licenser/LicenseViolationException.java
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser;
 
 import org.gradle.api.GradleException;
diff --git a/src/main/groovy/net/minecraftforge/licenser/Licenser.groovy b/src/main/groovy/net/minecraftforge/licenser/Licenser.groovy
index 489609c..6b06040 100644
--- a/src/main/groovy/net/minecraftforge/licenser/Licenser.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/Licenser.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import groovy.text.SimpleTemplateEngine
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/CommentHeaderFormat.groovy b/src/main/groovy/net/minecraftforge/licenser/header/CommentHeaderFormat.groovy
index 73a163d..0d69086 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/CommentHeaderFormat.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/header/CommentHeaderFormat.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header
 
 import groovy.transform.EqualsAndHashCode
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/Header.groovy b/src/main/groovy/net/minecraftforge/licenser/header/Header.groovy
index 893d27b..f51f25e 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/Header.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/header/Header.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header
 
 import net.minecraftforge.licenser.util.HeaderHelper
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormat.java b/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormat.java
index d19bda8..ba3cda9 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormat.java
+++ b/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormat.java
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header;
 
 public interface HeaderFormat {
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistry.groovy b/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistry.groovy
index d196fbc..778811a 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistry.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistry.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header
 
 import net.minecraftforge.licenser.util.CaseInsensitiveMap
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/HeaderStyle.groovy b/src/main/groovy/net/minecraftforge/licenser/header/HeaderStyle.groovy
index 5963e1a..e5db8b3 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/HeaderStyle.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/header/HeaderStyle.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header
 
 import javax.annotation.Nullable
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/PreparedCommentHeader.groovy b/src/main/groovy/net/minecraftforge/licenser/header/PreparedCommentHeader.groovy
index a650c21..f5bdefe 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/PreparedCommentHeader.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/header/PreparedCommentHeader.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header
 
 import groovy.transform.PackageScope
diff --git a/src/main/groovy/net/minecraftforge/licenser/header/PreparedHeader.java b/src/main/groovy/net/minecraftforge/licenser/header/PreparedHeader.java
index 839313b..b221ba3 100644
--- a/src/main/groovy/net/minecraftforge/licenser/header/PreparedHeader.java
+++ b/src/main/groovy/net/minecraftforge/licenser/header/PreparedHeader.java
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header;
 
 import java.io.File;
diff --git a/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseCheck.groovy b/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseCheck.groovy
index 4ca90a0..653cbd5 100644
--- a/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseCheck.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseCheck.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.tasks
 
 import net.minecraftforge.licenser.LicenseViolationException
diff --git a/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseTask.groovy b/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseTask.groovy
index c688205..c078332 100644
--- a/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseTask.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseTask.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.tasks
 
 import net.minecraftforge.licenser.header.Header
diff --git a/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseUpdate.groovy b/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseUpdate.groovy
index 471dfd4..225299b 100644
--- a/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseUpdate.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/tasks/LicenseUpdate.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.tasks
 
 import org.gradle.api.GradleException
diff --git a/src/main/groovy/net/minecraftforge/licenser/util/CaseInsensitiveMap.groovy b/src/main/groovy/net/minecraftforge/licenser/util/CaseInsensitiveMap.groovy
index 66ae463..f767775 100644
--- a/src/main/groovy/net/minecraftforge/licenser/util/CaseInsensitiveMap.groovy
+++ b/src/main/groovy/net/minecraftforge/licenser/util/CaseInsensitiveMap.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.util
 
 class CaseInsensitiveMap<V> {
diff --git a/src/main/groovy/net/minecraftforge/licenser/util/HeaderHelper.java b/src/main/groovy/net/minecraftforge/licenser/util/HeaderHelper.java
index 2e57fc4..6870d88 100644
--- a/src/main/groovy/net/minecraftforge/licenser/util/HeaderHelper.java
+++ b/src/main/groovy/net/minecraftforge/licenser/util/HeaderHelper.java
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.util;
 
 import net.minecraftforge.licenser.header.CommentHeaderFormat;
diff --git a/src/test/groovy/net/minecraftforge/licenser/LicenseExtensionTest.groovy b/src/test/groovy/net/minecraftforge/licenser/LicenseExtensionTest.groovy
index 6e06166..87ec01e 100644
--- a/src/test/groovy/net/minecraftforge/licenser/LicenseExtensionTest.groovy
+++ b/src/test/groovy/net/minecraftforge/licenser/LicenseExtensionTest.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import net.minecraftforge.licenser.header.HeaderStyle
diff --git a/src/test/groovy/net/minecraftforge/licenser/LicenserPluginTest.groovy b/src/test/groovy/net/minecraftforge/licenser/LicenserPluginTest.groovy
index 06f1222..c33cd36 100644
--- a/src/test/groovy/net/minecraftforge/licenser/LicenserPluginTest.groovy
+++ b/src/test/groovy/net/minecraftforge/licenser/LicenserPluginTest.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser
 
 import org.gradle.testfixtures.ProjectBuilder
diff --git a/src/test/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistryTest.groovy b/src/test/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistryTest.groovy
index 9832dce..ebdc6a4 100644
--- a/src/test/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistryTest.groovy
+++ b/src/test/groovy/net/minecraftforge/licenser/header/HeaderFormatRegistryTest.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.header
 
 import spock.lang.Specification
diff --git a/src/test/groovy/net/minecraftforge/licenser/util/HeaderHelperTest.groovy b/src/test/groovy/net/minecraftforge/licenser/util/HeaderHelperTest.groovy
index 94bbc4d..54ac5a9 100644
--- a/src/test/groovy/net/minecraftforge/licenser/util/HeaderHelperTest.groovy
+++ b/src/test/groovy/net/minecraftforge/licenser/util/HeaderHelperTest.groovy
@@ -1,27 +1,8 @@
 /*
- * The MIT License (MIT)
- *
  * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Forked by Forge Development LLC and contributors
+ * SPDX-License-Identifier: MIT
  */
-
 package net.minecraftforge.licenser.util