diff --git a/aws-bundle/build.gradle b/aws-bundle/build.gradle
index 5b9054812a50..f9d356a774f5 100644
--- a/aws-bundle/build.gradle
+++ b/aws-bundle/build.gradle
@@ -44,7 +44,7 @@ project(":iceberg-aws-bundle") {
 
   shadowJar {
     archiveClassifier.set(null)
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the shaded Jar
     from(projectDir) {
diff --git a/azure-bundle/build.gradle b/azure-bundle/build.gradle
index 46d1b3daea5b..c19096394309 100644
--- a/azure-bundle/build.gradle
+++ b/azure-bundle/build.gradle
@@ -31,7 +31,7 @@ project(":iceberg-azure-bundle") {
 
   shadowJar {
     archiveClassifier.set(null)
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the shaded Jar
     from(projectDir) {
diff --git a/baseline.gradle b/baseline.gradle
index 151fa40a1a28..c4840c49ae01 100644
--- a/baseline.gradle
+++ b/baseline.gradle
@@ -36,7 +36,7 @@ subprojects {
 
   // Thus we concede to applying all of the Baseline plugins individually on all the projects we are
   // ready to enforce linting on.
-  apply plugin: 'org.inferred.processors'
+
   if (!project.hasProperty('quick')) {
     apply plugin: 'com.palantir.baseline-checkstyle'
     apply plugin: 'com.palantir.baseline-error-prone'
@@ -49,7 +49,6 @@ subprojects {
     t.setReproducibleFileOrder(true);
     t.setDuplicatesStrategy(DuplicatesStrategy.WARN);
   });
-  apply plugin: 'com.palantir.baseline-exact-dependencies'
   apply plugin: 'com.diffplug.spotless'
 
   pluginManager.withPlugin('com.diffplug.spotless') {
diff --git a/bom/build.gradle b/bom/build.gradle
new file mode 100644
index 000000000000..9db8aa2c5c5d
--- /dev/null
+++ b/bom/build.gradle
@@ -0,0 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+// This file is intentionally minimal - BOM configuration is in root build.gradle
+
diff --git a/build.gradle b/build.gradle
index fcd6dcb78066..6afe8634268c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -29,8 +29,10 @@ buildscript {
     classpath 'com.gradleup.shadow:shadow-gradle-plugin:8.3.9'
     classpath 'com.palantir.baseline:gradle-baseline-java:5.72.0'
     classpath 'com.diffplug.spotless:spotless-plugin-gradle:6.25.0'
-    classpath 'gradle.plugin.org.inferred:gradle-processors:3.7.0'
     classpath 'me.champeau.jmh:jmh-gradle-plugin:0.7.3'
+    // Commented out for Gradle 9.x compatibility - plugin uses deprecated 'convention' property
+    // Modern Gradle has native annotation processor support via annotationProcessor configuration
+    // classpath 'gradle.plugin.org.inferred:gradle-processors:3.7.0'
     classpath 'gradle.plugin.io.morethan.jmhreport:gradle-jmh-report:0.9.6'
     classpath "com.github.alisiikh:gradle-scalastyle-plugin:3.5.0"
     classpath 'org.revapi:gradle-revapi:1.8.0'
@@ -239,7 +241,7 @@ subprojects {
       } else {
         events "failed"
       }
-      exceptionFormat "full"
+      exceptionFormat = "full"
     }
 
     systemProperty 'project.version', project.version
@@ -274,7 +276,7 @@ project(':iceberg-bundled-guava') {
   shadowJar {
     archiveClassifier.set(null)
     configurations = [project.configurations.compileClasspath]
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the shaded Jar
     from(projectDir) {
@@ -428,7 +430,7 @@ project(':iceberg-data') {
   test {
     useJUnitPlatform()
     // Only for TestSplitScan as of Gradle 5.0+
-    maxHeapSize '1500m'
+    maxHeapSize = '1500m'
   }
 }
 
@@ -1024,7 +1026,8 @@ project(':iceberg-open-api') {
   dependencies {
     testImplementation project(':iceberg-api')
     testImplementation project(':iceberg-core')
-    testImplementation project(':iceberg-core').sourceSets.test.runtimeClasspath
+    testImplementation project(path: ':iceberg-core', configuration: 'testArtifacts')
+    testImplementation project(path: ':iceberg-api', configuration: 'testArtifacts')
     testImplementation(testFixtures(project(':iceberg-open-api')))
 
     testImplementation libs.junit.jupiter
@@ -1108,7 +1111,7 @@ project(':iceberg-open-api') {
     archiveClassifier.set(null)
     configurations = [project.configurations.testFixturesRuntimeClasspath]
     from sourceSets.testFixtures.output
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the runtime Jar
     from(projectDir) {
diff --git a/deploy.gradle b/deploy.gradle
index 740d0056273b..9b3313350abc 100644
--- a/deploy.gradle
+++ b/deploy.gradle
@@ -33,13 +33,13 @@ subprojects {
       task sourceJar(type: Jar, dependsOn: classes) {
         archiveClassifier.set('sources')
         from sourceSets.main.allSource
-        group 'build'
+        group = 'build'
       }
 
       task javadocJar(type: Jar, dependsOn: javadoc) {
         archiveClassifier.set('javadoc')
         from javadoc.destinationDir
-        group 'build'
+        group = 'build'
       }
 
       task testJar(type: Jar) {
@@ -124,8 +124,8 @@ subprojects {
       repositories {
         maven {
           credentials {
-            username project.hasProperty('mavenUser') ? "$mavenUser" : ""
-            password project.hasProperty('mavenPassword') ? "$mavenPassword" : ""
+            username = project.hasProperty('mavenUser') ? "$mavenUser" : ""
+            password = project.hasProperty('mavenPassword') ? "$mavenPassword" : ""
           }
           // upload to the releases repository using ./gradlew -Prelease publish
           def apacheSnapshotsRepoUrl = 'https://repository.apache.org/content/repositories/snapshots'
diff --git a/flink/v2.1/build.gradle b/flink/v2.1/build.gradle
index 91081bdc2e42..192e753fac7e 100644
--- a/flink/v2.1/build.gradle
+++ b/flink/v2.1/build.gradle
@@ -226,7 +226,7 @@ project(":iceberg-flink:iceberg-flink-runtime-${flinkMajorVersion}") {
   shadowJar {
     configurations = [project.configurations.runtimeClasspath]
 
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the shaded Jar
     from(projectDir) {
@@ -255,6 +255,7 @@ project(":iceberg-flink:iceberg-flink-runtime-${flinkMajorVersion}") {
   task integrationTest(type: Test) {
     description = "Test Flink Runtime Jar against Flink ${flinkMajorVersion}"
     group = "verification"
+    failOnNoDiscoveredTests = false
     jvmArgs += project.property('extraJvmArgs')
     testClassesDirs = sourceSets.integration.output.classesDirs
     classpath = sourceSets.integration.runtimeClasspath + files(shadowJar.archiveFile.get().asFile.path)
diff --git a/gcp-bundle/build.gradle b/gcp-bundle/build.gradle
index 99e4359bd6d0..03dbdc399043 100644
--- a/gcp-bundle/build.gradle
+++ b/gcp-bundle/build.gradle
@@ -33,7 +33,7 @@ project(":iceberg-gcp-bundle") {
 
   shadowJar {
     archiveClassifier.set(null)
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the shaded Jar
     from(projectDir) {
diff --git a/gradle.properties b/gradle.properties
index 0f70b49eb722..134dc865ef5b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -28,8 +28,7 @@ systemProp.knownScalaVersions=2.12,2.13
 org.gradle.caching=true
 # enable Gradle parallel builds
 org.gradle.parallel=true
-# configure only necessary Gradle tasks
-org.gradle.configureondemand=true
+# Note: org.gradle.configureondemand has been removed as it is deprecated in Gradle 9.x
 # explicitly disable the configuration cache
 org.gradle.configuration-cache=false
 org.gradle.jvmargs=-Xmx1536m
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 78cb6e16a49f..49ab6fc3f247 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,7 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=bd71102213493060956ec229d946beee57158dbd89d0e62b91bca0fa2c5f3531
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+distributionSha256Sum=df67a32e86e3276d011735facb1535f64d0d88df84fa87521e90becc2d735444
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/mr/build.gradle b/mr/build.gradle
index dac7e3d4542b..6efffae6546b 100644
--- a/mr/build.gradle
+++ b/mr/build.gradle
@@ -76,7 +76,7 @@ project(':iceberg-mr') {
 
   test {
     // testJoinTables / testScanTable
-    maxHeapSize '2500m'
+    maxHeapSize = '2500m'
   }
 }
 
diff --git a/spark/v4.0/build.gradle b/spark/v4.0/build.gradle
index 8ebed9bd439b..0d87827447ca 100644
--- a/spark/v4.0/build.gradle
+++ b/spark/v4.0/build.gradle
@@ -132,7 +132,7 @@ project(":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}") {
 
   tasks.withType(Test) {
     // Vectorized reads need more memory
-    maxHeapSize '3160m'
+    maxHeapSize = '3160m'
   }
 }
 
@@ -296,7 +296,7 @@ project(":iceberg-spark:iceberg-spark-runtime-${sparkMajorVersion}_${scalaVersio
   shadowJar {
     configurations = [project.configurations.runtimeClasspath]
 
-    zip64 true
+    zip64 = true
 
     // include the LICENSE and NOTICE files for the shaded Jar
     from(projectDir) {
diff --git a/tasks.gradle b/tasks.gradle
index 5515d7b75052..42e7b30877bd 100644
--- a/tasks.gradle
+++ b/tasks.gradle
@@ -22,7 +22,7 @@ task aggregateJavadoc(type: Javadoc) {
   def javadocTasks = subprojects.findAll { it.name != 'iceberg-bom' }.javadoc
   dependsOn javadocTasks
   source javadocTasks.source
-  destinationDir project.rootProject.file("site/docs/javadoc/${getJavadocVersion()}")
+  destinationDir = project.rootProject.file("site/docs/javadoc/${getJavadocVersion()}")
   classpath = project.rootProject.files(javadocTasks.classpath)
 
   final JAVADOC_FIX_SEARCH_STR = '\n\n' +