diff --git a/assembly/MANIFEST.MF b/assembly/MANIFEST.MF
deleted file mode 100644
index f798110..0000000
--- a/assembly/MANIFEST.MF
+++ /dev/null
@@ -1,6 +0,0 @@
-Manifest-Version: 1.0
-Vaadin-Package-Version: 1
-Vaadin-Addon: ${project.build.finalName}.${project.packaging}
-Implementation-Vendor: ${organization.name}
-Implementation-Title: ${project.name}
-Implementation-Version: ${project.version}
diff --git a/assembly/assembly.xml b/assembly/assembly.xml
deleted file mode 100644
index 0ba817a..0000000
--- a/assembly/assembly.xml
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<assembly
-    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
-    <id>flowing-addon</id>
-
-    <formats>
-        <format>zip</format>
-    </formats>
-
-    <!-- Do not use because we must put META-INF/MANIFEST.MF there. -->
-    <includeBaseDirectory>false</includeBaseDirectory>
-
-    <fileSets>
-        <fileSet>
-            <directory>.</directory>
-            <includes>
-                <include>LICENSE</include>
-                <include>README.md</include>
-            </includes>
-        </fileSet>
-        <fileSet>
-            <directory>target</directory>
-            <outputDirectory></outputDirectory>
-            <includes>
-                <include>*.jar</include>
-                <include>*.pdf</include>
-            </includes>
-            <excludes>
-				<exclude>*-demo.jar</exclude>
-			</excludes>
-        </fileSet>
-    </fileSets>
-
-    <files>
-        <!-- This is vaadin.com/directory related manifest needed in the 
-            zip package -->
-        <file>
-            <source>assembly/MANIFEST.MF</source>
-            <outputDirectory>META-INF</outputDirectory>
-            <filtered>true</filtered>
-        </file>
-    </files>
-</assembly>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 7065516..221a0f3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,6 +7,7 @@
 	<version>5.0.1-SNAPSHOT</version>
 	<name>Chat Assistant Add-on</name>
 	<description>Chat Assistant Add-on for Vaadin Flow</description>
+	<url>https://www.flowingcode.com/en/open-source/</url>
 
 	<properties>
         <vaadin.version>24.8.0</vaadin.version>
@@ -179,7 +180,10 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-release-plugin</artifactId>
-					<version>2.5.3</version>
+					<version>3.0.1</version>
+					<configuration>
+						<releaseProfiles>release</releaseProfiles>
+					</configuration>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -262,25 +266,6 @@
 			<id>directory</id>
 			<build>
 				<plugins>
-					<plugin>
-						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-assembly-plugin</artifactId>
-						<version>3.3.0</version>
-						<configuration>
-							<appendAssemblyId>false</appendAssemblyId>
-							<descriptors>
-								<descriptor>assembly/assembly.xml</descriptor>
-							</descriptors>
-						</configuration>
-						<executions>
-							<execution>
-								<goals>
-									<goal>single</goal>
-								</goals>
-								<phase>install</phase>
-							</execution>
-						</executions>
-					</plugin>
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-source-plugin</artifactId>
@@ -288,7 +273,7 @@
 						<executions>
 							<execution>
 								<id>attach-sources</id>
-								<phase>verify</phase>
+								<phase>package</phase>
 								<goals>
 									<goal>jar-no-fork</goal>
 								</goals>
@@ -442,6 +427,33 @@
 				</plugins>
 			</build>
 		</profile>
+		<profile>
+			<id>gpg</id>
+			<activation>
+				<property>
+					<name>env.MAVEN_GPG_PASSPHRASE</name>
+				</property>
+			</activation>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-gpg-plugin</artifactId>
+						<version>3.2.8</version>
+						<executions>
+							<execution>
+								<id>sign-artifacts</id>
+								<phase>verify</phase>
+								<goals>
+									<goal>sign</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+
 		<profile>
 			<id>demo-jar</id>
 			<build>		
@@ -471,6 +483,20 @@
 			</build>
 		</profile>
 
+		<profile>
+			<id>release</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.sonatype.central</groupId>
+						<artifactId>central-publishing-maven-plugin</artifactId>
+						<version>0.8.0</version>
+						<extensions>true</extensions>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+
 		<profile>
 			<id>v25</id>
 			<properties>