diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 1f73031b..ff1c7af5 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.2.0"
+  ".": "3.3.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6dd6f7c1..96892df7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [3.3.0](https://github.com/imagekit-developer/imagekit-java/compare/v3.2.0...v3.3.0) (2026-06-18)
+
+
+### Features
+
+* **origins:** add useIAMRole for IAM role authentication ([621b8b9](https://github.com/imagekit-developer/imagekit-java/commit/621b8b9c981f03458c836ba5fc167cd77d70b008))
+
+
+### Documentation
+
+* update default value in description for intensity in colorize transformation ([b7bae14](https://github.com/imagekit-developer/imagekit-java/commit/b7bae14adf3219aac909605d951a37e991d0ff8d))
+
 ## [3.2.0](https://github.com/imagekit-developer/imagekit-java/compare/v3.1.2...v3.2.0) (2026-06-03)
 
 
diff --git a/README.md b/README.md
index 977f147f..d1e382a7 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/io.imagekit/image-kit-java)](https://central.sonatype.com/artifact/io.imagekit/image-kit-java/3.2.0)
-[![javadoc](https://javadoc.io/badge2/io.imagekit/image-kit-java/3.2.0/javadoc.svg)](https://javadoc.io/doc/io.imagekit/image-kit-java/3.1.1)
+[![Maven Central](https://img.shields.io/maven-central/v/io.imagekit/image-kit-java)](https://central.sonatype.com/artifact/io.imagekit/image-kit-java/3.3.0)
+[![javadoc](https://javadoc.io/badge2/io.imagekit/image-kit-java/3.3.0/javadoc.svg)](https://javadoc.io/doc/io.imagekit/image-kit-java/3.1.1)
 
 <!-- x-release-please-end -->
 
@@ -11,7 +11,7 @@ The ImageKit Java SDK is a comprehensive library designed to simplify the integr
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [imagekit.io](https://imagekit.io/docs/api-reference). Javadocs are available on [javadoc.io](https://javadoc.io/doc/io.imagekit/image-kit-java/3.2.0).
+The REST API documentation can be found on [imagekit.io](https://imagekit.io/docs/api-reference). Javadocs are available on [javadoc.io](https://javadoc.io/doc/io.imagekit/image-kit-java/3.3.0).
 
 <!-- x-release-please-end -->
 
@@ -46,7 +46,7 @@ The REST API documentation can be found on [imagekit.io](https://imagekit.io/doc
 ### Gradle
 
 ```kotlin
-implementation("io.imagekit:image-kit-java:3.2.0")
+implementation("io.imagekit:image-kit-java:3.3.0")
 ```
 
 ### Maven
@@ -55,7 +55,7 @@ implementation("io.imagekit:image-kit-java:3.2.0")
 <dependency>
   <groupId>io.imagekit</groupId>
   <artifactId>image-kit-java</artifactId>
-  <version>3.2.0</version>
+  <version>3.3.0</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index f949c9ff..1b6c0c52 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "io.imagekit"
-    version = "3.2.0" // x-release-please-version
+    version = "3.3.0" // x-release-please-version
 }
 
 subprojects {
diff --git a/image-kit-java-core/src/main/kotlin/io/imagekit/models/Transformation.kt b/image-kit-java-core/src/main/kotlin/io/imagekit/models/Transformation.kt
index 5232c39e..37f81007 100644
--- a/image-kit-java-core/src/main/kotlin/io/imagekit/models/Transformation.kt
+++ b/image-kit-java-core/src/main/kotlin/io/imagekit/models/Transformation.kt
@@ -405,7 +405,7 @@ private constructor(
     /**
      * Applies a color tint to the image. Accepts color and intensity as optional parameters.
      * - `co-color` - Color to apply (e.g., `red`, `blue`, `FF0022`). Default is gray color.
-     * - `in-intensity` - Intensity of the color (0-100). Default is 35. See
+     * - `in-intensity` - Intensity of the color (0-100). Default is 100. See
      *   [Colorize](https://imagekit.io/docs/effects-and-enhancements#colorize---e-colorize).
      *
      * @throws ImageKitInvalidDataException if the JSON field has an unexpected type (e.g. if the
@@ -1651,7 +1651,7 @@ private constructor(
         /**
          * Applies a color tint to the image. Accepts color and intensity as optional parameters.
          * - `co-color` - Color to apply (e.g., `red`, `blue`, `FF0022`). Default is gray color.
-         * - `in-intensity` - Intensity of the color (0-100). Default is 35. See
+         * - `in-intensity` - Intensity of the color (0-100). Default is 100. See
          *   [Colorize](https://imagekit.io/docs/effects-and-enhancements#colorize---e-colorize).
          */
         fun colorize(colorize: String) = colorize(JsonField.of(colorize))
diff --git a/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginRequest.kt b/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginRequest.kt
index a5ea2714..6e5d05d1 100644
--- a/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginRequest.kt
+++ b/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginRequest.kt
@@ -411,6 +411,7 @@ private constructor(
         private val baseUrlForCanonicalHeader: JsonField<String>,
         private val includeCanonicalHeader: JsonField<Boolean>,
         private val prefix: JsonField<String>,
+        private val useIamRole: JsonField<Boolean>,
         private val additionalProperties: MutableMap<String, JsonValue>,
     ) {
 
@@ -432,6 +433,9 @@ private constructor(
             @ExcludeMissing
             includeCanonicalHeader: JsonField<Boolean> = JsonMissing.of(),
             @JsonProperty("prefix") @ExcludeMissing prefix: JsonField<String> = JsonMissing.of(),
+            @JsonProperty("useIAMRole")
+            @ExcludeMissing
+            useIamRole: JsonField<Boolean> = JsonMissing.of(),
         ) : this(
             accessKey,
             bucket,
@@ -441,11 +445,12 @@ private constructor(
             baseUrlForCanonicalHeader,
             includeCanonicalHeader,
             prefix,
+            useIamRole,
             mutableMapOf(),
         )
 
         /**
-         * Access key for the bucket.
+         * Access key for the bucket. When `useIAMRole` is `true`, send an empty string.
          *
          * @throws ImageKitInvalidDataException if the JSON field has an unexpected type or is
          *   unexpectedly missing or null (e.g. if the server responded with an unexpected value).
@@ -469,7 +474,7 @@ private constructor(
         fun name(): String = name.getRequired("name")
 
         /**
-         * Secret key for the bucket.
+         * Secret key for the bucket. When `useIAMRole` is `true`, send an empty string.
          *
          * @throws ImageKitInvalidDataException if the JSON field has an unexpected type or is
          *   unexpectedly missing or null (e.g. if the server responded with an unexpected value).
@@ -513,6 +518,15 @@ private constructor(
          */
         fun prefix(): Optional<String> = prefix.getOptional("prefix")
 
+        /**
+         * Use IAM role for authentication instead of access/secret keys. When set to `true`, send
+         * an empty string for both `accessKey` and `secretKey`.
+         *
+         * @throws ImageKitInvalidDataException if the JSON field has an unexpected type (e.g. if
+         *   the server responded with an unexpected value).
+         */
+        fun useIamRole(): Optional<Boolean> = useIamRole.getOptional("useIAMRole")
+
         /**
          * Returns the raw JSON value of [accessKey].
          *
@@ -568,6 +582,15 @@ private constructor(
          */
         @JsonProperty("prefix") @ExcludeMissing fun _prefix(): JsonField<String> = prefix
 
+        /**
+         * Returns the raw JSON value of [useIamRole].
+         *
+         * Unlike [useIamRole], this method doesn't throw if the JSON field has an unexpected type.
+         */
+        @JsonProperty("useIAMRole")
+        @ExcludeMissing
+        fun _useIamRole(): JsonField<Boolean> = useIamRole
+
         @JsonAnySetter
         private fun putAdditionalProperty(key: String, value: JsonValue) {
             additionalProperties.put(key, value)
@@ -607,6 +630,7 @@ private constructor(
             private var baseUrlForCanonicalHeader: JsonField<String> = JsonMissing.of()
             private var includeCanonicalHeader: JsonField<Boolean> = JsonMissing.of()
             private var prefix: JsonField<String> = JsonMissing.of()
+            private var useIamRole: JsonField<Boolean> = JsonMissing.of()
             private var additionalProperties: MutableMap<String, JsonValue> = mutableMapOf()
 
             @JvmSynthetic
@@ -619,10 +643,11 @@ private constructor(
                 baseUrlForCanonicalHeader = s3.baseUrlForCanonicalHeader
                 includeCanonicalHeader = s3.includeCanonicalHeader
                 prefix = s3.prefix
+                useIamRole = s3.useIamRole
                 additionalProperties = s3.additionalProperties.toMutableMap()
             }
 
-            /** Access key for the bucket. */
+            /** Access key for the bucket. When `useIAMRole` is `true`, send an empty string. */
             fun accessKey(accessKey: String) = accessKey(JsonField.of(accessKey))
 
             /**
@@ -658,7 +683,7 @@ private constructor(
              */
             fun name(name: JsonField<String>) = apply { this.name = name }
 
-            /** Secret key for the bucket. */
+            /** Secret key for the bucket. When `useIAMRole` is `true`, send an empty string. */
             fun secretKey(secretKey: String) = secretKey(JsonField.of(secretKey))
 
             /**
@@ -726,6 +751,21 @@ private constructor(
              */
             fun prefix(prefix: JsonField<String>) = apply { this.prefix = prefix }
 
+            /**
+             * Use IAM role for authentication instead of access/secret keys. When set to `true`,
+             * send an empty string for both `accessKey` and `secretKey`.
+             */
+            fun useIamRole(useIamRole: Boolean) = useIamRole(JsonField.of(useIamRole))
+
+            /**
+             * Sets [Builder.useIamRole] to an arbitrary JSON value.
+             *
+             * You should usually call [Builder.useIamRole] with a well-typed [Boolean] value
+             * instead. This method is primarily for setting the field to an undocumented or not yet
+             * supported value.
+             */
+            fun useIamRole(useIamRole: JsonField<Boolean>) = apply { this.useIamRole = useIamRole }
+
             fun additionalProperties(additionalProperties: Map<String, JsonValue>) = apply {
                 this.additionalProperties.clear()
                 putAllAdditionalProperties(additionalProperties)
@@ -770,6 +810,7 @@ private constructor(
                     baseUrlForCanonicalHeader,
                     includeCanonicalHeader,
                     prefix,
+                    useIamRole,
                     additionalProperties.toMutableMap(),
                 )
         }
@@ -802,6 +843,7 @@ private constructor(
             baseUrlForCanonicalHeader()
             includeCanonicalHeader()
             prefix()
+            useIamRole()
             validated = true
         }
 
@@ -828,7 +870,8 @@ private constructor(
                 type.let { if (it == JsonValue.from("S3")) 1 else 0 } +
                 (if (baseUrlForCanonicalHeader.asKnown().isPresent) 1 else 0) +
                 (if (includeCanonicalHeader.asKnown().isPresent) 1 else 0) +
-                (if (prefix.asKnown().isPresent) 1 else 0)
+                (if (prefix.asKnown().isPresent) 1 else 0) +
+                (if (useIamRole.asKnown().isPresent) 1 else 0)
 
         override fun equals(other: Any?): Boolean {
             if (this === other) {
@@ -844,6 +887,7 @@ private constructor(
                 baseUrlForCanonicalHeader == other.baseUrlForCanonicalHeader &&
                 includeCanonicalHeader == other.includeCanonicalHeader &&
                 prefix == other.prefix &&
+                useIamRole == other.useIamRole &&
                 additionalProperties == other.additionalProperties
         }
 
@@ -857,6 +901,7 @@ private constructor(
                 baseUrlForCanonicalHeader,
                 includeCanonicalHeader,
                 prefix,
+                useIamRole,
                 additionalProperties,
             )
         }
@@ -864,7 +909,7 @@ private constructor(
         override fun hashCode(): Int = hashCode
 
         override fun toString() =
-            "S3{accessKey=$accessKey, bucket=$bucket, name=$name, secretKey=$secretKey, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, includeCanonicalHeader=$includeCanonicalHeader, prefix=$prefix, additionalProperties=$additionalProperties}"
+            "S3{accessKey=$accessKey, bucket=$bucket, name=$name, secretKey=$secretKey, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, includeCanonicalHeader=$includeCanonicalHeader, prefix=$prefix, useIamRole=$useIamRole, additionalProperties=$additionalProperties}"
     }
 
     class S3Compatible
@@ -1431,6 +1476,7 @@ private constructor(
         private val baseUrlForCanonicalHeader: JsonField<String>,
         private val includeCanonicalHeader: JsonField<Boolean>,
         private val prefix: JsonField<String>,
+        private val useIamRole: JsonField<Boolean>,
         private val additionalProperties: MutableMap<String, JsonValue>,
     ) {
 
@@ -1452,6 +1498,9 @@ private constructor(
             @ExcludeMissing
             includeCanonicalHeader: JsonField<Boolean> = JsonMissing.of(),
             @JsonProperty("prefix") @ExcludeMissing prefix: JsonField<String> = JsonMissing.of(),
+            @JsonProperty("useIAMRole")
+            @ExcludeMissing
+            useIamRole: JsonField<Boolean> = JsonMissing.of(),
         ) : this(
             accessKey,
             bucket,
@@ -1461,11 +1510,12 @@ private constructor(
             baseUrlForCanonicalHeader,
             includeCanonicalHeader,
             prefix,
+            useIamRole,
             mutableMapOf(),
         )
 
         /**
-         * Access key for the bucket.
+         * Access key for the bucket. When `useIAMRole` is `true`, send an empty string.
          *
          * @throws ImageKitInvalidDataException if the JSON field has an unexpected type or is
          *   unexpectedly missing or null (e.g. if the server responded with an unexpected value).
@@ -1489,7 +1539,7 @@ private constructor(
         fun name(): String = name.getRequired("name")
 
         /**
-         * Secret key for the bucket.
+         * Secret key for the bucket. When `useIAMRole` is `true`, send an empty string.
          *
          * @throws ImageKitInvalidDataException if the JSON field has an unexpected type or is
          *   unexpectedly missing or null (e.g. if the server responded with an unexpected value).
@@ -1533,6 +1583,15 @@ private constructor(
          */
         fun prefix(): Optional<String> = prefix.getOptional("prefix")
 
+        /**
+         * Use IAM role for authentication instead of access/secret keys. When set to `true`, send
+         * an empty string for both `accessKey` and `secretKey`.
+         *
+         * @throws ImageKitInvalidDataException if the JSON field has an unexpected type (e.g. if
+         *   the server responded with an unexpected value).
+         */
+        fun useIamRole(): Optional<Boolean> = useIamRole.getOptional("useIAMRole")
+
         /**
          * Returns the raw JSON value of [accessKey].
          *
@@ -1588,6 +1647,15 @@ private constructor(
          */
         @JsonProperty("prefix") @ExcludeMissing fun _prefix(): JsonField<String> = prefix
 
+        /**
+         * Returns the raw JSON value of [useIamRole].
+         *
+         * Unlike [useIamRole], this method doesn't throw if the JSON field has an unexpected type.
+         */
+        @JsonProperty("useIAMRole")
+        @ExcludeMissing
+        fun _useIamRole(): JsonField<Boolean> = useIamRole
+
         @JsonAnySetter
         private fun putAdditionalProperty(key: String, value: JsonValue) {
             additionalProperties.put(key, value)
@@ -1627,6 +1695,7 @@ private constructor(
             private var baseUrlForCanonicalHeader: JsonField<String> = JsonMissing.of()
             private var includeCanonicalHeader: JsonField<Boolean> = JsonMissing.of()
             private var prefix: JsonField<String> = JsonMissing.of()
+            private var useIamRole: JsonField<Boolean> = JsonMissing.of()
             private var additionalProperties: MutableMap<String, JsonValue> = mutableMapOf()
 
             @JvmSynthetic
@@ -1639,10 +1708,11 @@ private constructor(
                 baseUrlForCanonicalHeader = cloudinaryBackup.baseUrlForCanonicalHeader
                 includeCanonicalHeader = cloudinaryBackup.includeCanonicalHeader
                 prefix = cloudinaryBackup.prefix
+                useIamRole = cloudinaryBackup.useIamRole
                 additionalProperties = cloudinaryBackup.additionalProperties.toMutableMap()
             }
 
-            /** Access key for the bucket. */
+            /** Access key for the bucket. When `useIAMRole` is `true`, send an empty string. */
             fun accessKey(accessKey: String) = accessKey(JsonField.of(accessKey))
 
             /**
@@ -1678,7 +1748,7 @@ private constructor(
              */
             fun name(name: JsonField<String>) = apply { this.name = name }
 
-            /** Secret key for the bucket. */
+            /** Secret key for the bucket. When `useIAMRole` is `true`, send an empty string. */
             fun secretKey(secretKey: String) = secretKey(JsonField.of(secretKey))
 
             /**
@@ -1746,6 +1816,21 @@ private constructor(
              */
             fun prefix(prefix: JsonField<String>) = apply { this.prefix = prefix }
 
+            /**
+             * Use IAM role for authentication instead of access/secret keys. When set to `true`,
+             * send an empty string for both `accessKey` and `secretKey`.
+             */
+            fun useIamRole(useIamRole: Boolean) = useIamRole(JsonField.of(useIamRole))
+
+            /**
+             * Sets [Builder.useIamRole] to an arbitrary JSON value.
+             *
+             * You should usually call [Builder.useIamRole] with a well-typed [Boolean] value
+             * instead. This method is primarily for setting the field to an undocumented or not yet
+             * supported value.
+             */
+            fun useIamRole(useIamRole: JsonField<Boolean>) = apply { this.useIamRole = useIamRole }
+
             fun additionalProperties(additionalProperties: Map<String, JsonValue>) = apply {
                 this.additionalProperties.clear()
                 putAllAdditionalProperties(additionalProperties)
@@ -1790,6 +1875,7 @@ private constructor(
                     baseUrlForCanonicalHeader,
                     includeCanonicalHeader,
                     prefix,
+                    useIamRole,
                     additionalProperties.toMutableMap(),
                 )
         }
@@ -1822,6 +1908,7 @@ private constructor(
             baseUrlForCanonicalHeader()
             includeCanonicalHeader()
             prefix()
+            useIamRole()
             validated = true
         }
 
@@ -1848,7 +1935,8 @@ private constructor(
                 type.let { if (it == JsonValue.from("CLOUDINARY_BACKUP")) 1 else 0 } +
                 (if (baseUrlForCanonicalHeader.asKnown().isPresent) 1 else 0) +
                 (if (includeCanonicalHeader.asKnown().isPresent) 1 else 0) +
-                (if (prefix.asKnown().isPresent) 1 else 0)
+                (if (prefix.asKnown().isPresent) 1 else 0) +
+                (if (useIamRole.asKnown().isPresent) 1 else 0)
 
         override fun equals(other: Any?): Boolean {
             if (this === other) {
@@ -1864,6 +1952,7 @@ private constructor(
                 baseUrlForCanonicalHeader == other.baseUrlForCanonicalHeader &&
                 includeCanonicalHeader == other.includeCanonicalHeader &&
                 prefix == other.prefix &&
+                useIamRole == other.useIamRole &&
                 additionalProperties == other.additionalProperties
         }
 
@@ -1877,6 +1966,7 @@ private constructor(
                 baseUrlForCanonicalHeader,
                 includeCanonicalHeader,
                 prefix,
+                useIamRole,
                 additionalProperties,
             )
         }
@@ -1884,7 +1974,7 @@ private constructor(
         override fun hashCode(): Int = hashCode
 
         override fun toString() =
-            "CloudinaryBackup{accessKey=$accessKey, bucket=$bucket, name=$name, secretKey=$secretKey, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, includeCanonicalHeader=$includeCanonicalHeader, prefix=$prefix, additionalProperties=$additionalProperties}"
+            "CloudinaryBackup{accessKey=$accessKey, bucket=$bucket, name=$name, secretKey=$secretKey, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, includeCanonicalHeader=$includeCanonicalHeader, prefix=$prefix, useIamRole=$useIamRole, additionalProperties=$additionalProperties}"
     }
 
     class WebFolder
diff --git a/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginResponse.kt b/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginResponse.kt
index f6968751..078490bd 100644
--- a/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginResponse.kt
+++ b/image-kit-java-core/src/main/kotlin/io/imagekit/models/accounts/origins/OriginResponse.kt
@@ -411,6 +411,7 @@ private constructor(
         private val prefix: JsonField<String>,
         private val type: JsonValue,
         private val baseUrlForCanonicalHeader: JsonField<String>,
+        private val useIamRole: JsonField<Boolean>,
         private val additionalProperties: MutableMap<String, JsonValue>,
     ) {
 
@@ -427,6 +428,9 @@ private constructor(
             @JsonProperty("baseUrlForCanonicalHeader")
             @ExcludeMissing
             baseUrlForCanonicalHeader: JsonField<String> = JsonMissing.of(),
+            @JsonProperty("useIAMRole")
+            @ExcludeMissing
+            useIamRole: JsonField<Boolean> = JsonMissing.of(),
         ) : this(
             id,
             bucket,
@@ -435,6 +439,7 @@ private constructor(
             prefix,
             type,
             baseUrlForCanonicalHeader,
+            useIamRole,
             mutableMapOf(),
         )
 
@@ -500,6 +505,14 @@ private constructor(
         fun baseUrlForCanonicalHeader(): Optional<String> =
             baseUrlForCanonicalHeader.getOptional("baseUrlForCanonicalHeader")
 
+        /**
+         * Whether the origin authenticates using an IAM role instead of access/secret keys.
+         *
+         * @throws ImageKitInvalidDataException if the JSON field has an unexpected type (e.g. if
+         *   the server responded with an unexpected value).
+         */
+        fun useIamRole(): Optional<Boolean> = useIamRole.getOptional("useIAMRole")
+
         /**
          * Returns the raw JSON value of [id].
          *
@@ -548,6 +561,15 @@ private constructor(
         @ExcludeMissing
         fun _baseUrlForCanonicalHeader(): JsonField<String> = baseUrlForCanonicalHeader
 
+        /**
+         * Returns the raw JSON value of [useIamRole].
+         *
+         * Unlike [useIamRole], this method doesn't throw if the JSON field has an unexpected type.
+         */
+        @JsonProperty("useIAMRole")
+        @ExcludeMissing
+        fun _useIamRole(): JsonField<Boolean> = useIamRole
+
         @JsonAnySetter
         private fun putAdditionalProperty(key: String, value: JsonValue) {
             additionalProperties.put(key, value)
@@ -587,6 +609,7 @@ private constructor(
             private var prefix: JsonField<String>? = null
             private var type: JsonValue = JsonValue.from("S3")
             private var baseUrlForCanonicalHeader: JsonField<String> = JsonMissing.of()
+            private var useIamRole: JsonField<Boolean> = JsonMissing.of()
             private var additionalProperties: MutableMap<String, JsonValue> = mutableMapOf()
 
             @JvmSynthetic
@@ -598,6 +621,7 @@ private constructor(
                 prefix = s3.prefix
                 type = s3.type
                 baseUrlForCanonicalHeader = s3.baseUrlForCanonicalHeader
+                useIamRole = s3.useIamRole
                 additionalProperties = s3.additionalProperties.toMutableMap()
             }
 
@@ -696,6 +720,18 @@ private constructor(
                 this.baseUrlForCanonicalHeader = baseUrlForCanonicalHeader
             }
 
+            /** Whether the origin authenticates using an IAM role instead of access/secret keys. */
+            fun useIamRole(useIamRole: Boolean) = useIamRole(JsonField.of(useIamRole))
+
+            /**
+             * Sets [Builder.useIamRole] to an arbitrary JSON value.
+             *
+             * You should usually call [Builder.useIamRole] with a well-typed [Boolean] value
+             * instead. This method is primarily for setting the field to an undocumented or not yet
+             * supported value.
+             */
+            fun useIamRole(useIamRole: JsonField<Boolean>) = apply { this.useIamRole = useIamRole }
+
             fun additionalProperties(additionalProperties: Map<String, JsonValue>) = apply {
                 this.additionalProperties.clear()
                 putAllAdditionalProperties(additionalProperties)
@@ -740,6 +776,7 @@ private constructor(
                     checkRequired("prefix", prefix),
                     type,
                     baseUrlForCanonicalHeader,
+                    useIamRole,
                     additionalProperties.toMutableMap(),
                 )
         }
@@ -771,6 +808,7 @@ private constructor(
                 }
             }
             baseUrlForCanonicalHeader()
+            useIamRole()
             validated = true
         }
 
@@ -796,7 +834,8 @@ private constructor(
                 (if (name.asKnown().isPresent) 1 else 0) +
                 (if (prefix.asKnown().isPresent) 1 else 0) +
                 type.let { if (it == JsonValue.from("S3")) 1 else 0 } +
-                (if (baseUrlForCanonicalHeader.asKnown().isPresent) 1 else 0)
+                (if (baseUrlForCanonicalHeader.asKnown().isPresent) 1 else 0) +
+                (if (useIamRole.asKnown().isPresent) 1 else 0)
 
         override fun equals(other: Any?): Boolean {
             if (this === other) {
@@ -811,6 +850,7 @@ private constructor(
                 prefix == other.prefix &&
                 type == other.type &&
                 baseUrlForCanonicalHeader == other.baseUrlForCanonicalHeader &&
+                useIamRole == other.useIamRole &&
                 additionalProperties == other.additionalProperties
         }
 
@@ -823,6 +863,7 @@ private constructor(
                 prefix,
                 type,
                 baseUrlForCanonicalHeader,
+                useIamRole,
                 additionalProperties,
             )
         }
@@ -830,7 +871,7 @@ private constructor(
         override fun hashCode(): Int = hashCode
 
         override fun toString() =
-            "S3{id=$id, bucket=$bucket, includeCanonicalHeader=$includeCanonicalHeader, name=$name, prefix=$prefix, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, additionalProperties=$additionalProperties}"
+            "S3{id=$id, bucket=$bucket, includeCanonicalHeader=$includeCanonicalHeader, name=$name, prefix=$prefix, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, useIamRole=$useIamRole, additionalProperties=$additionalProperties}"
     }
 
     class S3Compatible
@@ -1363,6 +1404,7 @@ private constructor(
         private val prefix: JsonField<String>,
         private val type: JsonValue,
         private val baseUrlForCanonicalHeader: JsonField<String>,
+        private val useIamRole: JsonField<Boolean>,
         private val additionalProperties: MutableMap<String, JsonValue>,
     ) {
 
@@ -1379,6 +1421,9 @@ private constructor(
             @JsonProperty("baseUrlForCanonicalHeader")
             @ExcludeMissing
             baseUrlForCanonicalHeader: JsonField<String> = JsonMissing.of(),
+            @JsonProperty("useIAMRole")
+            @ExcludeMissing
+            useIamRole: JsonField<Boolean> = JsonMissing.of(),
         ) : this(
             id,
             bucket,
@@ -1387,6 +1432,7 @@ private constructor(
             prefix,
             type,
             baseUrlForCanonicalHeader,
+            useIamRole,
             mutableMapOf(),
         )
 
@@ -1452,6 +1498,14 @@ private constructor(
         fun baseUrlForCanonicalHeader(): Optional<String> =
             baseUrlForCanonicalHeader.getOptional("baseUrlForCanonicalHeader")
 
+        /**
+         * Whether the origin authenticates using an IAM role instead of access/secret keys.
+         *
+         * @throws ImageKitInvalidDataException if the JSON field has an unexpected type (e.g. if
+         *   the server responded with an unexpected value).
+         */
+        fun useIamRole(): Optional<Boolean> = useIamRole.getOptional("useIAMRole")
+
         /**
          * Returns the raw JSON value of [id].
          *
@@ -1500,6 +1554,15 @@ private constructor(
         @ExcludeMissing
         fun _baseUrlForCanonicalHeader(): JsonField<String> = baseUrlForCanonicalHeader
 
+        /**
+         * Returns the raw JSON value of [useIamRole].
+         *
+         * Unlike [useIamRole], this method doesn't throw if the JSON field has an unexpected type.
+         */
+        @JsonProperty("useIAMRole")
+        @ExcludeMissing
+        fun _useIamRole(): JsonField<Boolean> = useIamRole
+
         @JsonAnySetter
         private fun putAdditionalProperty(key: String, value: JsonValue) {
             additionalProperties.put(key, value)
@@ -1539,6 +1602,7 @@ private constructor(
             private var prefix: JsonField<String>? = null
             private var type: JsonValue = JsonValue.from("CLOUDINARY_BACKUP")
             private var baseUrlForCanonicalHeader: JsonField<String> = JsonMissing.of()
+            private var useIamRole: JsonField<Boolean> = JsonMissing.of()
             private var additionalProperties: MutableMap<String, JsonValue> = mutableMapOf()
 
             @JvmSynthetic
@@ -1550,6 +1614,7 @@ private constructor(
                 prefix = cloudinaryBackup.prefix
                 type = cloudinaryBackup.type
                 baseUrlForCanonicalHeader = cloudinaryBackup.baseUrlForCanonicalHeader
+                useIamRole = cloudinaryBackup.useIamRole
                 additionalProperties = cloudinaryBackup.additionalProperties.toMutableMap()
             }
 
@@ -1648,6 +1713,18 @@ private constructor(
                 this.baseUrlForCanonicalHeader = baseUrlForCanonicalHeader
             }
 
+            /** Whether the origin authenticates using an IAM role instead of access/secret keys. */
+            fun useIamRole(useIamRole: Boolean) = useIamRole(JsonField.of(useIamRole))
+
+            /**
+             * Sets [Builder.useIamRole] to an arbitrary JSON value.
+             *
+             * You should usually call [Builder.useIamRole] with a well-typed [Boolean] value
+             * instead. This method is primarily for setting the field to an undocumented or not yet
+             * supported value.
+             */
+            fun useIamRole(useIamRole: JsonField<Boolean>) = apply { this.useIamRole = useIamRole }
+
             fun additionalProperties(additionalProperties: Map<String, JsonValue>) = apply {
                 this.additionalProperties.clear()
                 putAllAdditionalProperties(additionalProperties)
@@ -1692,6 +1769,7 @@ private constructor(
                     checkRequired("prefix", prefix),
                     type,
                     baseUrlForCanonicalHeader,
+                    useIamRole,
                     additionalProperties.toMutableMap(),
                 )
         }
@@ -1723,6 +1801,7 @@ private constructor(
                 }
             }
             baseUrlForCanonicalHeader()
+            useIamRole()
             validated = true
         }
 
@@ -1748,7 +1827,8 @@ private constructor(
                 (if (name.asKnown().isPresent) 1 else 0) +
                 (if (prefix.asKnown().isPresent) 1 else 0) +
                 type.let { if (it == JsonValue.from("CLOUDINARY_BACKUP")) 1 else 0 } +
-                (if (baseUrlForCanonicalHeader.asKnown().isPresent) 1 else 0)
+                (if (baseUrlForCanonicalHeader.asKnown().isPresent) 1 else 0) +
+                (if (useIamRole.asKnown().isPresent) 1 else 0)
 
         override fun equals(other: Any?): Boolean {
             if (this === other) {
@@ -1763,6 +1843,7 @@ private constructor(
                 prefix == other.prefix &&
                 type == other.type &&
                 baseUrlForCanonicalHeader == other.baseUrlForCanonicalHeader &&
+                useIamRole == other.useIamRole &&
                 additionalProperties == other.additionalProperties
         }
 
@@ -1775,6 +1856,7 @@ private constructor(
                 prefix,
                 type,
                 baseUrlForCanonicalHeader,
+                useIamRole,
                 additionalProperties,
             )
         }
@@ -1782,7 +1864,7 @@ private constructor(
         override fun hashCode(): Int = hashCode
 
         override fun toString() =
-            "CloudinaryBackup{id=$id, bucket=$bucket, includeCanonicalHeader=$includeCanonicalHeader, name=$name, prefix=$prefix, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, additionalProperties=$additionalProperties}"
+            "CloudinaryBackup{id=$id, bucket=$bucket, includeCanonicalHeader=$includeCanonicalHeader, name=$name, prefix=$prefix, type=$type, baseUrlForCanonicalHeader=$baseUrlForCanonicalHeader, useIamRole=$useIamRole, additionalProperties=$additionalProperties}"
     }
 
     class WebFolder
diff --git a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginCreateParamsTest.kt b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginCreateParamsTest.kt
index b5c83a1c..44dd2ed1 100644
--- a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginCreateParamsTest.kt
+++ b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginCreateParamsTest.kt
@@ -19,6 +19,7 @@ internal class OriginCreateParamsTest {
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
                     .includeCanonicalHeader(false)
                     .prefix("images")
+                    .useIamRole(true)
                     .build()
             )
             .build()
@@ -37,6 +38,7 @@ internal class OriginCreateParamsTest {
                         .baseUrlForCanonicalHeader("https://cdn.example.com")
                         .includeCanonicalHeader(false)
                         .prefix("images")
+                        .useIamRole(true)
                         .build()
                 )
                 .build()
@@ -54,6 +56,7 @@ internal class OriginCreateParamsTest {
                         .baseUrlForCanonicalHeader("https://cdn.example.com")
                         .includeCanonicalHeader(false)
                         .prefix("images")
+                        .useIamRole(true)
                         .build()
                 )
             )
diff --git a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginRequestTest.kt b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginRequestTest.kt
index f0ca88a8..d18a1d83 100644
--- a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginRequestTest.kt
+++ b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginRequestTest.kt
@@ -25,6 +25,7 @@ internal class OriginRequestTest {
                 .baseUrlForCanonicalHeader("https://cdn.example.com")
                 .includeCanonicalHeader(false)
                 .prefix("raw-assets")
+                .useIamRole(true)
                 .build()
 
         val originRequest = OriginRequest.ofS3(s3)
@@ -52,6 +53,7 @@ internal class OriginRequestTest {
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
                     .includeCanonicalHeader(false)
                     .prefix("raw-assets")
+                    .useIamRole(true)
                     .build()
             )
 
@@ -129,6 +131,7 @@ internal class OriginRequestTest {
                 .baseUrlForCanonicalHeader("https://cdn.example.com")
                 .includeCanonicalHeader(false)
                 .prefix("raw-assets")
+                .useIamRole(true)
                 .build()
 
         val originRequest = OriginRequest.ofCloudinaryBackup(cloudinaryBackup)
@@ -156,6 +159,7 @@ internal class OriginRequestTest {
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
                     .includeCanonicalHeader(false)
                     .prefix("raw-assets")
+                    .useIamRole(true)
                     .build()
             )
 
diff --git a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginResponseTest.kt b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginResponseTest.kt
index 0147ac7e..04f6efb4 100644
--- a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginResponseTest.kt
+++ b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginResponseTest.kt
@@ -24,6 +24,7 @@ internal class OriginResponseTest {
                 .name("US S3 Storage")
                 .prefix("raw-assets")
                 .baseUrlForCanonicalHeader("https://cdn.example.com")
+                .useIamRole(true)
                 .build()
 
         val originResponse = OriginResponse.ofS3(s3)
@@ -50,6 +51,7 @@ internal class OriginResponseTest {
                     .name("US S3 Storage")
                     .prefix("raw-assets")
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
+                    .useIamRole(true)
                     .build()
             )
 
@@ -124,6 +126,7 @@ internal class OriginResponseTest {
                 .name("US S3 Storage")
                 .prefix("raw-assets")
                 .baseUrlForCanonicalHeader("https://cdn.example.com")
+                .useIamRole(true)
                 .build()
 
         val originResponse = OriginResponse.ofCloudinaryBackup(cloudinaryBackup)
@@ -150,6 +153,7 @@ internal class OriginResponseTest {
                     .name("US S3 Storage")
                     .prefix("raw-assets")
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
+                    .useIamRole(true)
                     .build()
             )
 
diff --git a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginUpdateParamsTest.kt b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginUpdateParamsTest.kt
index 4d2f3475..c5583783 100644
--- a/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginUpdateParamsTest.kt
+++ b/image-kit-java-core/src/test/kotlin/io/imagekit/models/accounts/origins/OriginUpdateParamsTest.kt
@@ -20,6 +20,7 @@ internal class OriginUpdateParamsTest {
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
                     .includeCanonicalHeader(false)
                     .prefix("images")
+                    .useIamRole(true)
                     .build()
             )
             .build()
@@ -59,6 +60,7 @@ internal class OriginUpdateParamsTest {
                         .baseUrlForCanonicalHeader("https://cdn.example.com")
                         .includeCanonicalHeader(false)
                         .prefix("images")
+                        .useIamRole(true)
                         .build()
                 )
                 .build()
@@ -76,6 +78,7 @@ internal class OriginUpdateParamsTest {
                         .baseUrlForCanonicalHeader("https://cdn.example.com")
                         .includeCanonicalHeader(false)
                         .prefix("images")
+                        .useIamRole(true)
                         .build()
                 )
             )
diff --git a/image-kit-java-core/src/test/kotlin/io/imagekit/services/async/accounts/OriginServiceAsyncTest.kt b/image-kit-java-core/src/test/kotlin/io/imagekit/services/async/accounts/OriginServiceAsyncTest.kt
index df0fcd93..337dab28 100644
--- a/image-kit-java-core/src/test/kotlin/io/imagekit/services/async/accounts/OriginServiceAsyncTest.kt
+++ b/image-kit-java-core/src/test/kotlin/io/imagekit/services/async/accounts/OriginServiceAsyncTest.kt
@@ -30,6 +30,7 @@ internal class OriginServiceAsyncTest {
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
                     .includeCanonicalHeader(false)
                     .prefix("images")
+                    .useIamRole(true)
                     .build()
             )
 
@@ -60,6 +61,7 @@ internal class OriginServiceAsyncTest {
                             .baseUrlForCanonicalHeader("https://cdn.example.com")
                             .includeCanonicalHeader(false)
                             .prefix("images")
+                            .useIamRole(true)
                             .build()
                     )
                     .build()
diff --git a/image-kit-java-core/src/test/kotlin/io/imagekit/services/blocking/accounts/OriginServiceTest.kt b/image-kit-java-core/src/test/kotlin/io/imagekit/services/blocking/accounts/OriginServiceTest.kt
index 03fbd1bd..27affbdb 100644
--- a/image-kit-java-core/src/test/kotlin/io/imagekit/services/blocking/accounts/OriginServiceTest.kt
+++ b/image-kit-java-core/src/test/kotlin/io/imagekit/services/blocking/accounts/OriginServiceTest.kt
@@ -30,6 +30,7 @@ internal class OriginServiceTest {
                     .baseUrlForCanonicalHeader("https://cdn.example.com")
                     .includeCanonicalHeader(false)
                     .prefix("images")
+                    .useIamRole(true)
                     .build()
             )
 
@@ -59,6 +60,7 @@ internal class OriginServiceTest {
                             .baseUrlForCanonicalHeader("https://cdn.example.com")
                             .includeCanonicalHeader(false)
                             .prefix("images")
+                            .useIamRole(true)
                             .build()
                     )
                     .build()