diff --git a/Adjust/build.gradle b/Adjust/build.gradle
index c20ea5674..dc9464dc3 100644
--- a/Adjust/build.gradle
+++ b/Adjust/build.gradle
@@ -9,7 +9,7 @@ ext {
     coreMinSdkVersion = 9
     coreCompileSdkVersion = 33
     coreTargetSdkVersion = 33
-    coreVersionName = '4.33.3'
+    coreVersionName = '4.33.4'
     defaultVersionCode = 1
     webbridgeMinSdkVersion = 17
     samsungReferrerMinSdkVersion = 18
diff --git a/Adjust/sdk-core/src/main/java/com/adjust/sdk/Adjust.java b/Adjust/sdk-core/src/main/java/com/adjust/sdk/Adjust.java
index 550d7803b..1962f06ca 100644
--- a/Adjust/sdk-core/src/main/java/com/adjust/sdk/Adjust.java
+++ b/Adjust/sdk-core/src/main/java/com/adjust/sdk/Adjust.java
@@ -34,7 +34,7 @@ private Adjust() {
      */
     public static synchronized AdjustInstance getDefaultInstance() {
         @SuppressWarnings("unused")
-        String VERSION = "!SDK-VERSION-STRING!:com.adjust.sdk:adjust-android:4.33.3";
+        String VERSION = "!SDK-VERSION-STRING!:com.adjust.sdk:adjust-android:4.33.4";
 
         if (defaultInstance == null) {
             defaultInstance = new AdjustInstance();
diff --git a/Adjust/sdk-core/src/main/java/com/adjust/sdk/Constants.java b/Adjust/sdk-core/src/main/java/com/adjust/sdk/Constants.java
index 419201eb1..9c80a789a 100644
--- a/Adjust/sdk-core/src/main/java/com/adjust/sdk/Constants.java
+++ b/Adjust/sdk-core/src/main/java/com/adjust/sdk/Constants.java
@@ -29,7 +29,7 @@ public interface Constants {
 
     String SCHEME = "https";
     String AUTHORITY = "app.adjust.com";
-    String CLIENT_SDK = "android4.33.3";
+    String CLIENT_SDK = "android4.33.4";
     String LOGTAG = "Adjust";
     String REFTAG = "reftag";
     String INSTALL_REFERRER = "install_referrer";
diff --git a/Adjust/sdk-plugin-criteo/build.gradle b/Adjust/sdk-plugin-criteo/build.gradle
index 8db4f86c4..dcd12c056 100644
--- a/Adjust/sdk-plugin-criteo/build.gradle
+++ b/Adjust/sdk-plugin-criteo/build.gradle
@@ -23,7 +23,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-imei/build.gradle b/Adjust/sdk-plugin-imei/build.gradle
index 4d19446e0..4306e3e4b 100644
--- a/Adjust/sdk-plugin-imei/build.gradle
+++ b/Adjust/sdk-plugin-imei/build.gradle
@@ -22,7 +22,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-imei/src/main/java/com/adjust/sdk/imei/TelephonyIdsUtil.java b/Adjust/sdk-plugin-imei/src/main/java/com/adjust/sdk/imei/TelephonyIdsUtil.java
index af17d65e3..9b4fbfc20 100644
--- a/Adjust/sdk-plugin-imei/src/main/java/com/adjust/sdk/imei/TelephonyIdsUtil.java
+++ b/Adjust/sdk-plugin-imei/src/main/java/com/adjust/sdk/imei/TelephonyIdsUtil.java
@@ -20,6 +20,8 @@ class TelephonyIdsUtil {
     private static String meids = null;
     private static String deviceIds = null;
 
+    private static boolean allIdsAlreadyReadOnce = false;
+
     static void injectImei(Map<String, String> parameters, Context context, ILogger logger) {
         if (!AdjustImei.isImeiToBeRead) {
             return;
@@ -32,6 +34,8 @@ static void injectImei(Map<String, String> parameters, Context context, ILogger
         PackageBuilder.addString(parameters, "imeis", getImeis(telephonyManager, logger));
         PackageBuilder.addString(parameters, "meids", getMeids(telephonyManager, logger));
         PackageBuilder.addString(parameters, "device_ids", getDeviceIds(telephonyManager, logger));
+
+        allIdsAlreadyReadOnce = true;
     }
 
     private static String getDeviceIds(TelephonyManager telephonyManager, ILogger logger) {
@@ -39,6 +43,10 @@ private static String getDeviceIds(TelephonyManager telephonyManager, ILogger lo
             return deviceIds;
         }
 
+        if (allIdsAlreadyReadOnce) {
+            return null;
+        }
+
         List<String> telephonyIdList = new ArrayList<String>();
         for (int i = 0; i < 10; i++) {
             String telephonyId = getDeviceIdByIndex(telephonyManager, i, logger);
@@ -56,6 +64,10 @@ private static String getDefaultDeviceId(TelephonyManager telephonyManager, ILog
             return deviceId;
         }
 
+        if (allIdsAlreadyReadOnce) {
+            return null;
+        }
+
         try {
             deviceId = telephonyManager.getDeviceId();
             return deviceId;
@@ -81,6 +93,10 @@ private static String getImeis(TelephonyManager telephonyManager, ILogger logger
             return imeis;
         }
 
+        if (allIdsAlreadyReadOnce) {
+            return null;
+        }
+
         List<String> imeiList = new ArrayList<String>();
         for (int i = 0; i < 10; i++) {
             String imei = getImeiByIndex(telephonyManager, i, logger);
@@ -97,6 +113,10 @@ private static String getDefaultImei(TelephonyManager telephonyManager, ILogger
             return imei;
         }
 
+        if (allIdsAlreadyReadOnce) {
+            return null;
+        }
+
         try {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                 imei = telephonyManager.getImei();
@@ -124,6 +144,10 @@ public static String getMeids(TelephonyManager telephonyManager, ILogger logger)
             return meids;
         }
 
+        if (allIdsAlreadyReadOnce) {
+            return null;
+        }
+
         List<String> meidList = new ArrayList<String>();
         for (int i = 0; i < 10; i++) {
             String meid = getMeidByIndex(telephonyManager, i, logger);
@@ -140,6 +164,10 @@ private static String getDefaultMeid(TelephonyManager telephonyManager, ILogger
             return meid;
         }
 
+        if (allIdsAlreadyReadOnce) {
+            return null;
+        }
+
         try {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                 meid = telephonyManager.getMeid();
diff --git a/Adjust/sdk-plugin-oaid/build.gradle b/Adjust/sdk-plugin-oaid/build.gradle
index c0b1f66e6..0e126c6c2 100644
--- a/Adjust/sdk-plugin-oaid/build.gradle
+++ b/Adjust/sdk-plugin-oaid/build.gradle
@@ -25,7 +25,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
     implementation 'com.huawei.hms:ads-identifier:3.4.56.300'
 }
 
diff --git a/Adjust/sdk-plugin-samsung-referrer/build.gradle b/Adjust/sdk-plugin-samsung-referrer/build.gradle
index 7f9bbeba1..87f5b1553 100644
--- a/Adjust/sdk-plugin-samsung-referrer/build.gradle
+++ b/Adjust/sdk-plugin-samsung-referrer/build.gradle
@@ -18,14 +18,13 @@ android {
 }
 
 dependencies {
-//    compileOnly files('libs/galaxyapps_sdk_referrer-release-v2.0.aar')
-
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 
     // Add Samsung referrer lib via Maven.
+    implementation 'store.galaxy.samsung.installreferrer:samsung_galaxystore_install_referrer:3.0.1'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/SamsungReferrerClient.java b/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/SamsungReferrerClient.java
index 247d56b4c..3036df7b5 100644
--- a/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/SamsungReferrerClient.java
+++ b/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/SamsungReferrerClient.java
@@ -3,9 +3,9 @@
 import android.content.Context;
 
 import com.adjust.sdk.ILogger;
-import com.sec.android.app.samsungapps.installreferrer.api.InstallReferrerClient;
-import com.sec.android.app.samsungapps.installreferrer.api.InstallReferrerStateListener;
-import com.sec.android.app.samsungapps.installreferrer.api.ReferrerDetails;
+import com.samsung.android.sdk.sinstallreferrer.api.InstallReferrerClient;
+import com.samsung.android.sdk.sinstallreferrer.api.InstallReferrerStateListener;
+import com.samsung.android.sdk.sinstallreferrer.api.ReferrerDetails;
 
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.LinkedBlockingQueue;
diff --git a/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/Util.java b/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/Util.java
index b6618632b..28d292a9c 100644
--- a/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/Util.java
+++ b/Adjust/sdk-plugin-samsung-referrer/src/main/java/com/adjust/sdk/samsung/Util.java
@@ -11,7 +11,7 @@ public synchronized static ReferrerDetails getSamsungInstallReferrerDetails(Cont
          return null;
       }
 
-      com.sec.android.app.samsungapps.installreferrer.api.ReferrerDetails referrerDetails =
+      com.samsung.android.sdk.sinstallreferrer.api.ReferrerDetails referrerDetails =
               SamsungReferrerClient.getReferrer(context, logger, 3000);
       if (referrerDetails == null) {
          return null;
diff --git a/Adjust/sdk-plugin-sociomantic/build.gradle b/Adjust/sdk-plugin-sociomantic/build.gradle
index ee1f1ffa2..36e3309e8 100644
--- a/Adjust/sdk-plugin-sociomantic/build.gradle
+++ b/Adjust/sdk-plugin-sociomantic/build.gradle
@@ -22,7 +22,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-trademob/build.gradle b/Adjust/sdk-plugin-trademob/build.gradle
index 523d911e5..cb064f08d 100644
--- a/Adjust/sdk-plugin-trademob/build.gradle
+++ b/Adjust/sdk-plugin-trademob/build.gradle
@@ -22,7 +22,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-vivo-referrer/build.gradle b/Adjust/sdk-plugin-vivo-referrer/build.gradle
index e7da4e87d..f19fe65f0 100644
--- a/Adjust/sdk-plugin-vivo-referrer/build.gradle
+++ b/Adjust/sdk-plugin-vivo-referrer/build.gradle
@@ -23,7 +23,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-webbridge/build.gradle b/Adjust/sdk-plugin-webbridge/build.gradle
index d9224cad5..0249afa89 100644
--- a/Adjust/sdk-plugin-webbridge/build.gradle
+++ b/Adjust/sdk-plugin-webbridge/build.gradle
@@ -22,7 +22,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 }
 
 // read local properties
diff --git a/Adjust/sdk-plugin-webbridge/src/main/assets/adjust.js b/Adjust/sdk-plugin-webbridge/src/main/assets/adjust.js
index 17cc50b53..b969cc14d 100644
--- a/Adjust/sdk-plugin-webbridge/src/main/assets/adjust.js
+++ b/Adjust/sdk-plugin-webbridge/src/main/assets/adjust.js
@@ -211,7 +211,7 @@ var Adjust = {
         if (this.adjustConfig) {
             return this.adjustConfig.getSdkPrefix();
         } else {
-            return 'web-bridge4.33.3';
+            return 'web-bridge4.33.4';
         }
     },
 
diff --git a/Adjust/sdk-plugin-xiaomi-referrer/build.gradle b/Adjust/sdk-plugin-xiaomi-referrer/build.gradle
index 0fa917bc8..c6ee0bc7e 100644
--- a/Adjust/sdk-plugin-xiaomi-referrer/build.gradle
+++ b/Adjust/sdk-plugin-xiaomi-referrer/build.gradle
@@ -23,7 +23,7 @@ dependencies {
     // Add SDK via module.
     compileOnly project(':sdk-core')
     // Add SDK via Maven.
-    // implementation 'com.adjust.sdk:adjust-android:4.33.3'
+    // implementation 'com.adjust.sdk:adjust-android:4.33.4'
 
     // Add xiaomi referrer lib via Maven.
     implementation 'com.miui.referrer:homereferrer:1.0.0.6'
diff --git a/Adjust/test-unit/src/androidTest/java/com/adjust/sdk/TestActivityPackage.java b/Adjust/test-unit/src/androidTest/java/com/adjust/sdk/TestActivityPackage.java
index 7af9d2a9a..5ba9a3a37 100644
--- a/Adjust/test-unit/src/androidTest/java/com/adjust/sdk/TestActivityPackage.java
+++ b/Adjust/test-unit/src/androidTest/java/com/adjust/sdk/TestActivityPackage.java
@@ -53,7 +53,7 @@ public TestActivityPackage(ActivityPackage activityPackage) {
         // default values
         appToken = "123456789012";
         environment = "sandbox";
-        clientSdk = "android4.33.3";
+        clientSdk = "android4.33.4";
         suffix = "";
         attribution = new AdjustAttribution();
         playServices = true;
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28a2d7068..400de1dc1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+### Version 4.33.4 (27th April 2023)
+#### Changed
+- Updated Samsung Install Referrer library version to 3.0.1.
+- Updated IMEI reading attempt to only once.
+
+---
+
 ### Version 4.33.3 (16th February 2023)
 #### Fixed
 - Added catching of exceptions in referrer plugins when thrown anytime while retrieving referrer.
diff --git a/VERSION b/VERSION
index 51e0a420d..42e44f83e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.33.3
+4.33.4