Prepare release 5.1.0

greenrobot-team · greenrobot-team · commit f2fc0486b7a2 · 2026-01-26T11:22:16.000+01:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,7 +4,7 @@ Notable changes to the ObjectBox Java library.
 
 For more insights into what changed in the ObjectBox C++ core, [check the ObjectBox C changelog](https://github.com/objectbox/objectbox-c/blob/main/CHANGELOG.md).
 
-## Next release
+## 5.1.0 - 2026-01-26
 
 - Add [ObjectBoxThreadPoolExecutor](objectbox-java/src/main/java/io/objectbox/ObjectBoxThreadPoolExecutor.java), a
   default implementation of a `ThreadPoolExecutor` that properly cleans up thread-local Box resources.
@@ -14,6 +14,18 @@ For more insights into what changed in the ObjectBox C++ core, [check the Object
   for `BoxStore` to help create common coroutine dispatchers backed by an `ObjectBoxThreadPoolExecutor`.
 - `BoxStore.runInTx` and `callInTx` close a write cursor even if the runnable or callable throws. This would previously
   result in cursor not closed warnings when the cursor was closed by the finalizer daemon. 
+- `BoxStore` no longer gets stuck while closing when deleting transactions created in other threads with open relation
+  cursors.
+- Admin: the Schema view now shows if external name of types and properties if configured.
+- Admin: the Schema view now shows the type as text (e.g. "String") instead of the internal type ID.
+                          
+### Sync
+
+- New Sync protocol V8: using new clients also requires a server update
+- Remove superfluous sync listener triggers when sync filters "report updates" (SKIP_TX)
+- Sync clients compress earlier: reduces disk storage for outgoing data
+- Reworked certificates for Apple platforms
+- Removed support for older Sync protocol versions before 2024-09; protocol V5+ is now required.
 
 ## 5.0.1 - 2025-09-30
 
diff --git a/README.md b/README.md
@@ -114,7 +114,7 @@ For Gradle projects, add the ObjectBox Gradle plugin to your root Gradle script:
 ```kotlin
 // build.gradle.kts
 buildscript {
-    val objectboxVersion by extra("5.0.1")
+    val objectboxVersion by extra("5.1.0")
     repositories {        
         mavenCentral()    
     }
@@ -130,7 +130,7 @@ buildscript {
 // build.gradle.kts
 plugins {
     id("com.android.application") version "8.0.2" apply false // When used in an Android project
-    id("io.objectbox") version "5.0.1" apply false
+    id("io.objectbox") version "5.1.0" apply false
 }
 ```
 
@@ -154,7 +154,7 @@ pluginManagement {
 ```groovy
 // build.gradle
 buildscript {
-    ext.objectboxVersion = "5.0.1"
+    ext.objectboxVersion = "5.1.0"
     repositories {        
         mavenCentral()    
     }
diff --git a/build.gradle.kts b/build.gradle.kts
@@ -20,7 +20,7 @@ plugins {
 buildscript {
     // Version of Maven artifacts
     // Should only be changed as part of the release process, see the release checklist in the objectbox repo
-    val versionNumber = "5.0.2"
+    val versionNumber = "5.1.0"
 
     // Release mode should only be enabled when manually triggering a CI pipeline,
     // see the release checklist in the objectbox repo.
diff --git a/objectbox-java/src/main/java/io/objectbox/BoxStore.java b/objectbox-java/src/main/java/io/objectbox/BoxStore.java
@@ -82,7 +82,7 @@ public class BoxStore implements Closeable {
      * ReLinker uses this as a suffix for the extracted shared library file. If different, it will update it. Should be
      * unique to avoid conflicts.
      */
-    public static final String JNI_VERSION = "5.0.0-2025-09-27";
+    public static final String JNI_VERSION = "5.1.0-2026-01-19";
 
     /** The ObjectBox database version this Java library is known to work with. */
     private static final String VERSION = "5.1.0-2026-01-19";
