diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 29bc28a..d6ad167 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -53,6 +53,15 @@ jobs:
           fi
           mvn -B release:prepare $MVN_ARGS
 
+      - name: Check release.properties
+        run: |
+          if [ ! -f release.properties ]; then
+            echo "release.properties not found"
+            exit 1
+          fi
+          echo "Contents of release.properties:"
+          cat release.properties
+
       - name: Determine release version
         id: version
         run: |
diff --git a/README.md b/README.md
index 2ef8fc5..8fcd32c 100644
--- a/README.md
+++ b/README.md
@@ -104,53 +104,62 @@ non-vectorized implementation. For an example usage, see
 examples/vector/Example.java. The feature requires JDK 19+ and is currently for 
 advanced users.
 
-JavaFastPFOR as a dependency (JitPack)
+JavaFastPFOR as a dependency
 ------------------------
 
+JavaFastPFOR is available both on Maven Central and JitPack, so you can easily 
+include it in your project using either source.
+
 We have a demo project using JavaFastPFOR as a dependency (both Maven and Gradle). See...
 
 https://github.com/fast-pack/JavaFastPFORDemo
 
-1. **Maven**
+### Maven Central
+
+You can add JavaFastPFOR directly from Maven Central — no extra repository configuration needed:
 
-Using this code in your own project is easy with maven, just add
-the following code in your pom.xml file:
+**Maven**
 
 ```xml
-	<dependency>
-	    <groupId>com.github.fast-pack</groupId>
-	    <artifactId>JavaFastPFor</artifactId>
-	    <version>JavaFastPFOR-0.3.2</version>
-	</dependency>
+<dependency>
+    <groupId>me.lemire.integercompression</groupId>
+    <artifactId>JavaFastPFOR</artifactId>
+    <version>0.3.8</version>
+</dependency>
 ```
 
-as well as jitpack as a repository...
+**Gradle (Groovy)**
 
-```xml
-	<repositories>
-		<repository>
-		    <id>jitpack.io</id>
-		    <url>https://jitpack.io</url>
-		</repository>
-	</repositories>
+```groovy
+dependencies {
+    implementation 'me.lemire.integercompression:JavaFastPFOR:0.3.8'
+}
 ```
 
-Naturally, you should replace "version" by the version
-you desire.
+### JitPack
 
+If you prefer or need to use JitPack, you can include the dependency like this:
 
-2. **Gradle (groovy)**
+**Maven**
 
+```xml
+<repositories>
+    <repository>
+        <id>jitpack.io</id>
+        <url>https://jitpack.io</url>
+    </repository>
+</repositories>
+
+<dependency>
+    <groupId>com.github.fast-pack</groupId>
+    <artifactId>JavaFastPFOR</artifactId>
+    <version>JavaFastPFOR-0.3.8</version>
+</dependency>
+```
 
-Then all you need is to edit your `build.gradle` file like so:
-
+**Gradle (groovy)**
 
 ```groovy
-plugins {
-    id 'java'
-}
-
-
 repositories {
     mavenCentral()
     maven {
@@ -159,11 +168,10 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.github.fast-pack:JavaFastPFor:JavaFastPFOR-0.3.2'
+    implementation 'com.github.fast-pack:JavaFastPFOR:JavaFastPFOR-0.3.8'
 }
 ```
 
-
 Naturally, you should replace "version" by the version
 you desire.
 
diff --git a/pom.xml b/pom.xml
index ac78f6d..769bd98 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>me.lemire.integercompression</groupId>
   <artifactId>JavaFastPFOR</artifactId>
-  <version>0.3.8</version>
+  <version>0.3.9</version>
   <packaging>jar</packaging>
   <properties>
     <maven.compiler.source>21</maven.compiler.source>
@@ -23,7 +23,7 @@
     <connection>scm:git:https://github.com/fast-pack/JavaFastPFOR.git</connection>
     <url>scm:git:https://github.com/fast-pack/JavaFastPFOR.git</url>
     <developerConnection>scm:git:https://github.com/fast-pack/JavaFastPFOR.git</developerConnection>
-    <tag>JavaFastPFOR-0.3.8</tag>
+    <tag>JavaFastPFOR-0.3.9</tag>
   </scm>
 
   <distributionManagement>
diff --git a/src/main/java/me/lemire/longcompression/differential/LongDelta.java b/src/main/java/me/lemire/longcompression/differential/LongDelta.java
index 184e53c..8399f94 100644
--- a/src/main/java/me/lemire/longcompression/differential/LongDelta.java
+++ b/src/main/java/me/lemire/longcompression/differential/LongDelta.java
@@ -107,7 +107,7 @@ public static void fastinverseDelta(long[] data) {
                         }
                 }
 
-                for (; i != data.length; ++i) {
+                for (; i < data.length; ++i) {
                         data[i] += data[i - 1];
                 }
         }
diff --git a/src/test/java/me/lemire/longcompression/LongDeltaTest.java b/src/test/java/me/lemire/longcompression/LongDeltaTest.java
new file mode 100644
index 0000000..bfa1e6f
--- /dev/null
+++ b/src/test/java/me/lemire/longcompression/LongDeltaTest.java
@@ -0,0 +1,23 @@
+package me.lemire.longcompression;
+
+import me.lemire.longcompression.differential.LongDelta;
+import org.junit.Test;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertNotNull;
+
+public class LongDeltaTest {
+    @Test
+    public void testEmptyArrayFastInverseDelta() {
+        LongCompressor compressor = new LongCompressor();
+        long[] input = new long[0];
+
+        LongDelta.delta(input);
+        long[] compressed = compressor.compress(input);
+        long[] result = compressor.uncompress(compressed);
+        LongDelta.fastinverseDelta(result);
+
+        assertNotNull(result);
+        assertArrayEquals(input, result);
+    }
+}