objectbox · greenrobot-team · Sep 2, 2025 · Aug 18, 2025 · Aug 18, 2025 · Sep 2, 2025
diff --git a/dev-doc/updating-c-library.md b/dev-doc/updating-c-library.md
@@ -19,37 +19,37 @@ for the binding update script (see below) and
 for Flutter (`flutter_libs` and `sync_flutter_libs` plugins) on Linux and Windows:
 
 ```bash
-./tool/set-c-version.sh 4.3.0
+./tool/set-c-version.sh 4.3.1
 ```
 
 ```text
-* Update ObjectBox database for Flutter Linux/Windows, Dart Native apps to [4.3.0](https://github.com/objectbox/objectbox-c/releases/tag/v4.3.0).
+* Update ObjectBox database for Flutter Linux/Windows, Dart Native apps to [4.3.1](https://github.com/objectbox/objectbox-c/releases/tag/v4.3.1).
 ```
 
 ```text
-Update C library [4.2.0 -> 4.3.0]
+Update C library [4.3.0 -> 4.3.1]
 
-Includes database 4.3.0-2025-05-12
+Includes database 4.3.1-2025-07-28
 ```
 
 ### Android
 
 For the Flutter plugins on Android ([view releases](https://github.com/objectbox/objectbox-java/releases)):
 
 ```bash
-./tool/set-android-version.sh 4.3.0
+./tool/set-android-version.sh 4.3.1
 ```
 
 ```text
-* Update ObjectBox database for Flutter Android apps to 4.3.0.
+* Update ObjectBox database for Flutter Android apps to 4.3.1.
   If your project is [using Admin](https://docs.objectbox.io/data-browser#admin-for-android), make 
-  sure to update to `io.objectbox:objectbox-android-objectbrowser:4.3.0` in `android/app/build.gradle`.
+  sure to update to `io.objectbox:objectbox-android-objectbrowser:4.3.1` in `android/app/build.gradle`.
 ```
 
 ```text
-Update Android library [4.2.0 -> 4.3.0]
+Update Android library [4.3.0 -> 4.3.1]
 
-Includes C API 4.3.0 and database 4.3.0-2025-05-12
+Includes C API 4.3.1 and database 4.3.1-2025-08-02
 ```
 
 Note: the embedded C API and ObjectBox version can be looked up
@@ -60,18 +60,18 @@ from the relevant objectbox repository release tag (like `java-4.1.0`).
 For the Flutter plugins on iOS/macOS ([view releases](https://github.com/objectbox/objectbox-swift/releases))
 
 ```bash
-./tool/set-swift-version.sh 4.3.0
+./tool/set-swift-version.sh 4.4.1
 ```
 
 ```text
-* Update ObjectBox database for Flutter iOS/macOS apps to 4.3.0.
+* Update ObjectBox database for Flutter iOS/macOS apps to 4.3.1.
   For existing projects, run `pod repo update` and `pod update ObjectBox` in the `ios` or `macos` directories.
 ```
 
 ```text
-Update macOS/iOS library [4.2.0 -> 4.3.0]
+Update macOS/iOS library [4.3.0 -> 4.4.1]
 
-Includes C API 4.3.0 and database 4.3.0-2025-05-12
+Includes C API 4.3.1 and database 4.3.1-2025-08-02
 ```
 
 Note: the embedded C API and ObjectBox version can be looked up 
@@ -98,5 +98,5 @@ Then manually:
 - Commit as
 
 ```text
-Update C-API [4.2.0 -> 4.3.0]
+Update C-API [4.3.0 -> 4.3.1]
 ```
diff --git a/flutter_libs/android/build.gradle b/flutter_libs/android/build.gradle
@@ -52,6 +52,6 @@ android {
         // ObjectBox Android library that includes an ObjectBox C library version compatible with
         // the C API binding of the ObjectBox Dart package.
         // https://central.sonatype.com/search?q=g:io.objectbox%20objectbox-android
-        implementation "io.objectbox:objectbox-android:4.3.0"
+        implementation "io.objectbox:objectbox-android:4.3.1"
     }
 }
diff --git a/flutter_libs/ios/objectbox_flutter_libs.podspec b/flutter_libs/ios/objectbox_flutter_libs.podspec
@@ -18,7 +18,7 @@ Pod::Spec.new do |s|
   s.source_files     = 'Classes/**/*'
 
   s.dependency 'Flutter'
-  s.dependency 'ObjectBox', '4.3.0'
+  s.dependency 'ObjectBox', '4.4.1'
 
   # Flutter.framework does not contain a i386 slice.
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }

diff --git a/flutter_libs/linux/CMakeLists.txt b/flutter_libs/linux/CMakeLists.txt
@@ -44,7 +44,7 @@ target_link_libraries(${PLUGIN_NAME} PRIVATE PkgConfig::GTK)
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.0)
+set(OBJECTBOX_VERSION 4.3.1)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "x86_64")

diff --git a/flutter_libs/macos/objectbox_flutter_libs.podspec b/flutter_libs/macos/objectbox_flutter_libs.podspec
@@ -18,7 +18,7 @@ Pod::Spec.new do |s|
   s.source_files     = 'Classes/**/*'
 
   s.dependency 'FlutterMacOS'
-  s.dependency 'ObjectBox', '4.3.0'
+  s.dependency 'ObjectBox', '4.4.1'
 
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
   s.swift_version = '5.3'

diff --git a/flutter_libs/windows/CMakeLists.txt b/flutter_libs/windows/CMakeLists.txt
@@ -50,7 +50,7 @@ set(objectbox_flutter_libs_bundled_libraries
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.0)
+set(OBJECTBOX_VERSION 4.3.1)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "AMD64")

diff --git a/install.sh b/install.sh
@@ -5,7 +5,7 @@ set -eu
 # It's important that the generated dart bindings and the c-api library version match. Dart won't error on C function
 # signature mismatch, leading to obscure memory bugs.
 # For how to upgrade the version see dev-doc/updating-c-library.md
-cLibVersion=4.3.0
+cLibVersion=4.3.1
 os=$(uname)
 cLibArgs="$*"
 

diff --git a/objectbox/CHANGELOG.md b/objectbox/CHANGELOG.md
@@ -1,5 +1,13 @@
 ## latest
 
+* Update ObjectBox database for Flutter Linux/Windows, Dart Native apps to [4.3.1](https://github.com/objectbox/objectbox-c/releases/tag/v4.3.1).
+* Update ObjectBox database for Flutter Android apps to 4.3.1.
+  For Admin: do not display values twice. [#738](https://github.com/objectbox/objectbox-dart/issues/738)
+  If your project is [using Admin](https://docs.objectbox.io/data-browser#admin-for-android), make
+  sure to update to `io.objectbox:objectbox-android-objectbrowser:4.3.1` in `android/app/build.gradle`.
+* Update ObjectBox database for Flutter iOS/macOS apps to 4.3.1.
+  For existing projects, run `pod repo update` and `pod update ObjectBox` in the `ios` or `macos` directories.
+
 ## 4.3.0 (2025-05-28)
 
 * Update ObjectBox database for Flutter Linux/Windows, Dart Native apps to [4.3.0](https://github.com/objectbox/objectbox-c/releases/tag/v4.3.0).

diff --git a/objectbox/example/flutter/objectbox_demo_relations/android/app/build.gradle b/objectbox/example/flutter/objectbox_demo_relations/android/app/build.gradle
@@ -83,5 +83,5 @@ dependencies {
     // Add the Android library with ObjectBox Admin only for debug builds.
     // Note: when the objectbox package updates, check if the Android
     // library below needs to be updated as well.
-    debugImplementation("io.objectbox:objectbox-android-objectbrowser:4.3.0")
+    debugImplementation("io.objectbox:objectbox-android-objectbrowser:4.3.1")
 }
diff --git a/objectbox/lib/src/native/bindings/bindings.dart b/objectbox/lib/src/native/bindings/bindings.dart
@@ -96,14 +96,14 @@ ObjectBoxC? _tryObjectBoxLibFile() {
 // libraries.
 // Library                 | C API | Database
 // ------------------------|-------|-----------------
-// C library 4.3.0         | 4.3.0 | 4.3.0-2025-05-12
-// Android library 4.3.0   | 4.3.0 | 4.3.0-2025-05-12
-// macOS/iOS library 4.3.0 | 4.3.0 | 4.3.0-2025-05-12
+// C library 4.3.1         | 4.3.1 | 4.3.1-2025-07-28
+// Android library 4.3.1   | 4.3.1 | 4.3.1-2025-08-02
+// macOS/iOS library 4.4.1 | 4.3.1 | 4.3.1-2025-08-02
 var _obxCminMajor = 4;
 var _obxCminMinor = 3;
-var _obxCminPatch = 0;
+var _obxCminPatch = 1;
 // Require minimum database version guaranteeing actual C API availability.
-var _obxDatabaseMinVersion = "4.3.0-2025-05-12";
+var _obxDatabaseMinVersion = "4.3.1-2025-07-28";
 
 bool _isSupportedVersion(ObjectBoxC obxc) {
   // Require a minimum C API version

diff --git a/objectbox/lib/src/native/bindings/objectbox-sync.h b/objectbox/lib/src/native/bindings/objectbox-sync.h
@@ -34,7 +34,7 @@
 #include "objectbox.h"
 
 #if defined(static_assert) || defined(__cplusplus)
-static_assert(OBX_VERSION_MAJOR == 4 && OBX_VERSION_MINOR == 3 && OBX_VERSION_PATCH == 0,  // NOLINT
+static_assert(OBX_VERSION_MAJOR == 4 && OBX_VERSION_MINOR == 3 && OBX_VERSION_PATCH == 1,  // NOLINT
               "Versions of objectbox.h and objectbox-sync.h files do not match, please update");
 #endif
 

diff --git a/objectbox/lib/src/native/bindings/objectbox.h b/objectbox/lib/src/native/bindings/objectbox.h
@@ -53,7 +53,7 @@ extern "C" {
 /// obx_version() or obx_version_is_at_least().
 #define OBX_VERSION_MAJOR 4
 #define OBX_VERSION_MINOR 3
-#define OBX_VERSION_PATCH 0  // values >= 100 are reserved for dev releases leading to the next minor/major increase
+#define OBX_VERSION_PATCH 1  // values >= 100 are reserved for dev releases leading to the next minor/major increase
 
 //----------------------------------------------
 // Common types
@@ -176,6 +176,10 @@ typedef enum {
     /// Enables additional authentication/authorization methods for sync login, e.g. JWT based methods.
     OBXFeature_Auth = 17,
 
+    /// This is a free trial version; only applies to server builds (no trial builds for database and Sync clients).
+    OBXFeature_Trial = 18,
+
+
 } OBXFeature;
 
 /// Checks whether the given feature is available in the currently loaded library.

diff --git a/objectbox/lib/src/native/bindings/objectbox_c.dart b/objectbox/lib/src/native/bindings/objectbox_c.dart
@@ -10397,6 +10397,9 @@ abstract class OBXFeature {
 
   /// Enables additional authentication/authorization methods for sync login, e.g. JWT based methods.
   static const int Auth = 17;
+
+  /// This is a free trial version; only applies to server builds (no trial builds for database and Sync clients).
+  static const int Trial = 18;
 }
 
 /// Log level as passed to obx_log_callback.
@@ -11678,7 +11681,7 @@ const int OBX_VERSION_MAJOR = 4;
 
 const int OBX_VERSION_MINOR = 3;
 
-const int OBX_VERSION_PATCH = 0;
+const int OBX_VERSION_PATCH = 1;
 
 const int OBX_ID_NEW = -1;
 

diff --git a/sync_flutter_libs/android/build.gradle b/sync_flutter_libs/android/build.gradle
@@ -52,6 +52,6 @@ android {
         // ObjectBox Android library that includes an ObjectBox C library version compatible with
         // the C API binding of the ObjectBox Dart package.
         // https://central.sonatype.com/search?q=g:io.objectbox%20objectbox-sync-android
-        implementation "io.objectbox:objectbox-sync-android:4.3.0"
+        implementation "io.objectbox:objectbox-sync-android:4.3.1"
     }
 }
diff --git a/sync_flutter_libs/ios/objectbox_sync_flutter_libs.podspec b/sync_flutter_libs/ios/objectbox_sync_flutter_libs.podspec
@@ -18,7 +18,7 @@ Pod::Spec.new do |s|
   s.source_files     = 'Classes/**/*'
 
   s.dependency 'Flutter'
-  s.dependency 'ObjectBox', '4.3.0-sync'
+  s.dependency 'ObjectBox', '4.4.1-sync'
 
   # Flutter.framework does not contain a i386 slice.
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }

diff --git a/sync_flutter_libs/linux/CMakeLists.txt b/sync_flutter_libs/linux/CMakeLists.txt
@@ -44,7 +44,7 @@ target_link_libraries(${PLUGIN_NAME} PRIVATE PkgConfig::GTK)
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.0)
+set(OBJECTBOX_VERSION 4.3.1)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "x86_64")

diff --git a/sync_flutter_libs/macos/objectbox_sync_flutter_libs.podspec b/sync_flutter_libs/macos/objectbox_sync_flutter_libs.podspec
@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   s.source_files     = 'Classes/**/*'
 
   s.dependency 'FlutterMacOS'
-  s.dependency 'ObjectBox', '4.3.0-sync'
+  s.dependency 'ObjectBox', '4.4.1-sync'
 
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
   s.swift_version = '5.3'

diff --git a/sync_flutter_libs/windows/CMakeLists.txt b/sync_flutter_libs/windows/CMakeLists.txt
@@ -50,7 +50,7 @@ set(objectbox_sync_flutter_libs_bundled_libraries
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.0)
+set(OBJECTBOX_VERSION 4.3.1)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "AMD64")

diff --git a/tool/update-c-binding.sh b/tool/update-c-binding.sh
@@ -5,7 +5,7 @@
 # copies the header files, makes some required modifications
 # and runs the ffigen binding generator on them.
 
-cLibVersion=4.3.0
+cLibVersion=4.3.1
 echo "Downloading C library source files from GitHub..."
 
 # Note: the release archives do not contain objectbox-dart.h, so get the full sources.