diff --git a/CHANGES.MD b/CHANGES.MD
index 05c5525..9ede95c 100644
--- a/CHANGES.MD
+++ b/CHANGES.MD
@@ -1,3 +1,7 @@
+3.16.0 (2024-09-26)
+=================
+- Added support for `$iata_carrier_code` to the `$booking` complex field
+
 3.15.2 (2024-07-11)
 =================
 - Added support for `$guest_user_id` and `$guest_booking_reference_id` fields to `$guest` complex field for `$create_order` and `$update_order` events
diff --git a/README.md b/README.md
index aff7410..84b0c13 100644
--- a/README.md
+++ b/README.md
@@ -13,13 +13,13 @@ Java 1.7 or later.
 <dependency>
     <groupId>com.siftscience</groupId>
     <artifactId>sift-java</artifactId>
-    <version>3.15.2</version>
+    <version>3.16.0</version>
 </dependency>
 ```
 ### Gradle
 ```
 dependencies {
-    compile 'com.siftscience:sift-java:3.15.2'
+    compile 'com.siftscience:sift-java:3.16.0'
 }
 ```
 ### Other
diff --git a/build.gradle b/build.gradle
index 9674009..1c677bb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ apply plugin: 'signing'
 apply plugin: 'java-library-distribution'
 
 group = 'com.siftscience'
-version = '3.15.2'
+version = '3.16.0'
 
 repositories {
     mavenCentral()
diff --git a/src/main/java/com/siftscience/Constants.java b/src/main/java/com/siftscience/Constants.java
index 822956d..f78da8b 100644
--- a/src/main/java/com/siftscience/Constants.java
+++ b/src/main/java/com/siftscience/Constants.java
@@ -3,6 +3,6 @@
 public class Constants {
 
     public static final String API_VERSION = "v205";
-    public static final String LIB_VERSION = "3.15.2";
+    public static final String LIB_VERSION = "3.16.0";
     public static final String USER_AGENT_HEADER = String.format("SiftScience/%s sift-java/%s", API_VERSION, LIB_VERSION);
 }
diff --git a/src/main/java/com/siftscience/model/Booking.java b/src/main/java/com/siftscience/model/Booking.java
index e4b9a11..ad3d40f 100644
--- a/src/main/java/com/siftscience/model/Booking.java
+++ b/src/main/java/com/siftscience/model/Booking.java
@@ -13,6 +13,7 @@ public class Booking {
     @Expose @SerializedName("$price") private Long price;
     @Expose @SerializedName("$currency_code") private String currencyCode;
     @Expose @SerializedName("$quantity") private Long quantity;
+    @Expose @SerializedName("$iata_carrier_code") private String iataCarrierCode;
     @Expose @SerializedName("$guests") private List<Guest> guests;
     @Expose @SerializedName("$segments") private List<Segment> segments;
     @Expose @SerializedName("$room_type") private String roomType;
@@ -85,6 +86,15 @@ public Booking setQuantity(Long quantity) {
         return this;
     }
 
+    public String getIataCarrierCode() {
+        return iataCarrierCode;
+    }
+
+    public Booking setIataCarrierCode(String iataCarrierCode) {
+        this.iataCarrierCode = iataCarrierCode;
+        return this;
+    }
+
     public List<Guest> getGuests() {
         return guests;
     }
diff --git a/src/test/java/com/siftscience/CreateOrderEventTest.java b/src/test/java/com/siftscience/CreateOrderEventTest.java
index f93286e..ae75669 100644
--- a/src/test/java/com/siftscience/CreateOrderEventTest.java
+++ b/src/test/java/com/siftscience/CreateOrderEventTest.java
@@ -127,6 +127,7 @@ public void testCreateOrderEventWithBookings() throws JSONException, IOException
             "      ],\n" +
             "      \"$price\": 49900000,\n" +
             "      \"$currency_code\": \"USD\",\n" +
+            "      \"$iata_carrier_code\": \"AS\",\n" +
             "      \"$quantity\": 1,\n" +
             "      \"$tags\": [\n" +
             "        \"team-123\",\n" +
diff --git a/src/test/java/com/siftscience/SiftRequestTest.java b/src/test/java/com/siftscience/SiftRequestTest.java
index 785d04d..d44ec10 100644
--- a/src/test/java/com/siftscience/SiftRequestTest.java
+++ b/src/test/java/com/siftscience/SiftRequestTest.java
@@ -37,7 +37,7 @@ public void testUserAgentHeader() throws Exception {
 
         // Verify the request.
         RecordedRequest recordedRequest = server.takeRequest();
-        Assert.assertEquals("SiftScience/v205 sift-java/3.15.2", recordedRequest.getHeader("User-Agent"));
+        Assert.assertEquals("SiftScience/v205 sift-java/3.16.0", recordedRequest.getHeader("User-Agent"));
     }
 
     @Test
diff --git a/src/test/java/com/siftscience/TestUtils.java b/src/test/java/com/siftscience/TestUtils.java
index 52c9f43..4834214 100644
--- a/src/test/java/com/siftscience/TestUtils.java
+++ b/src/test/java/com/siftscience/TestUtils.java
@@ -187,6 +187,7 @@ static Booking sampleBooking() {
             .setSegments(segments)
             .setPrice(49900000L)
             .setCurrencyCode("USD")
+            .setIataCarrierCode("AS")
             .setTags(sampleTags3())
             .setQuantity(1L);
     }
diff --git a/src/test/java/com/siftscience/UpdateOrderEventTest.java b/src/test/java/com/siftscience/UpdateOrderEventTest.java
index 5e6b917..7f3a209 100644
--- a/src/test/java/com/siftscience/UpdateOrderEventTest.java
+++ b/src/test/java/com/siftscience/UpdateOrderEventTest.java
@@ -128,6 +128,7 @@ public void testUpdateOrderEventWithBookings() throws JSONException, IOException
             "      ],\n" +
             "      \"$price\": 49900000,\n" +
             "      \"$currency_code\": \"USD\",\n" +
+            "      \"$iata_carrier_code\": \"AS\",\n" +
             "      \"$quantity\": 1,\n" +
             "      \"$tags\": [\n" +
             "        \"team-123\",\n" +
@@ -331,6 +332,7 @@ public void testUpdateOrderEventWithBookingsShippingCarrierIsNull() throws IOExc
             "      ],\n" +
             "      \"$price\": 49900000,\n" +
             "      \"$currency_code\": \"USD\",\n" +
+            "      \"$iata_carrier_code\": \"AS\",\n" +
             "      \"$quantity\": 1,\n" +
             "      \"$tags\": [\n" +
             "        \"team-123\",\n" +
@@ -497,6 +499,7 @@ public void testUpdateOrderEventWithBookingsShippingTrackingNumberIsNull() throw
             "      ],\n" +
             "      \"$price\": 49900000,\n" +
             "      \"$currency_code\": \"USD\",\n" +
+            "      \"$iata_carrier_code\": \"AS\",\n" +
             "      \"$quantity\": 1,\n" +
             "      \"$tags\": [\n" +
             "        \"team-123\",\n" +