Update C library [4.3.1 -> 5.0.0-rc]

Includes database 5.0.0-2025-09-27

Author: greenrobot-team

dev-doc/updating-c-library.md

@@ -19,17 +19,17 @@ 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 4.3.1
+./tool/set-c-version.sh 5.0.0-rc
 ```
 
 ```text
-* 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 Linux/Windows, Dart Native apps to [5.0.0-rc](https://github.com/objectbox/objectbox-c/releases/tag/v5.0.0-rc).
 ```
 
 ```text
-Update C library [4.3.0 -> 4.3.1]
+Update C library [4.3.1 -> 5.0.0-rc]
 
-Includes database 4.3.1-2025-07-28
+Includes database 5.0.0-2025-09-27
 ```
 
 ### Android

flutter_libs/linux/CMakeLists.txt

@@ -47,7 +47,7 @@ target_link_libraries(${PLUGIN_NAME} PRIVATE PkgConfig::GTK)
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.1)
+set(OBJECTBOX_VERSION 5.0.0-rc)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "x86_64")

flutter_libs/windows/CMakeLists.txt

@@ -56,7 +56,7 @@ set(objectbox_flutter_libs_bundled_libraries
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.1)
+set(OBJECTBOX_VERSION 5.0.0-rc)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "AMD64")

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=4.3.1
+cLibVersion=5.0.0-rc
 os=$(uname)
 cLibArgs="$*"
 

objectbox/CHANGELOG.md

@@ -3,6 +3,10 @@
 * Flutter packages are compiled with Android SDK 35 to support Android Gradle Plugin 8.13 
   [#755](https://github.com/objectbox/objectbox-dart/issues/755). They are also built using a
   language level of Java 11.
+* Update ObjectBox database for Flutter Linux/Windows, Dart Native apps to [5.0.0-rc](https://github.com/objectbox/objectbox-c/releases/tag/v5.0.0-rc).
+  * ToOne relations: when deleting an object with an ID larger than the maximum 32-bit unsigned
+    integer (`4_294_967_295`) that is used as the target object of a ToOne, correctly re-set the
+    target ID of the ToOne to `0`. [#740](https://github.com/objectbox/objectbox-dart/issues/740)
 
 ## 4.3.1 (2025-09-02)
 

sync_flutter_libs/linux/CMakeLists.txt

@@ -47,7 +47,7 @@ target_link_libraries(${PLUGIN_NAME} PRIVATE PkgConfig::GTK)
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.1)
+set(OBJECTBOX_VERSION 5.0.0-rc)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "x86_64")

sync_flutter_libs/windows/CMakeLists.txt

@@ -56,7 +56,7 @@ set(objectbox_sync_flutter_libs_bundled_libraries
 # ----------------------------------------------------------------------
 # Download and add objectbox-c prebuilt library.
 
-set(OBJECTBOX_VERSION 4.3.1)
+set(OBJECTBOX_VERSION 5.0.0-rc)
 
 set(OBJECTBOX_ARCH ${CMAKE_SYSTEM_PROCESSOR})
 if (${OBJECTBOX_ARCH} MATCHES "AMD64")

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=4.3.1
+cLibVersion=5.0.0-rc
 echo "Downloading C library source files from GitHub..."
 
 # Note: the release archives do not contain objectbox-dart.h, so get the full sources.