diff --git a/gradle.properties b/gradle.properties
index 126a2bf383..f4213f6de8 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 group=org.zkoss.zk
-version=10.1.0
+version=10.2.0-SNAPSHOT
 description=zk
 
 # dependencies
diff --git a/zk-bom/pom.xml b/zk-bom/pom.xml
index 34498fafe8..7545ea23c3 100644
--- a/zk-bom/pom.xml
+++ b/zk-bom/pom.xml
@@ -6,7 +6,7 @@
         <groupId>org.zkoss.zk</groupId>
         <artifactId>zk-parent</artifactId>
         <relativePath>../zk-parent/pom.xml</relativePath>
-        <version>10.1.0</version>
+        <version>10.2.0-SNAPSHOT</version>
     </parent>
     <artifactId>zk-bom</artifactId>
     <packaging>pom</packaging>
diff --git a/zk-parent/pom.xml b/zk-parent/pom.xml
index 8c7e6a72cc..faae1e6683 100644
--- a/zk-parent/pom.xml
+++ b/zk-parent/pom.xml
@@ -5,7 +5,7 @@
     <groupId>org.zkoss.zk</groupId>
     <artifactId>zk-parent</artifactId>
     <packaging>pom</packaging>
-    <version>10.1.0</version>
+    <version>10.2.0-SNAPSHOT</version>
     <name>ZK Parent POM</name>
     <url>https://www.zkoss.org/</url>
     <description>ZK Parent POM Module</description>
diff --git a/zkdoc/release-note b/zkdoc/release-note
index c681a31904..0744013286 100644
--- a/zkdoc/release-note
+++ b/zkdoc/release-note
@@ -1,3 +1,11 @@
+ZK 10.2.0
+* Features
+
+* Bugs
+
+* Upgrade Notes
+
+   --------
 ZK 10.1.0
 Nov 12, 2024
 * Features
diff --git a/zksandbox/gradle.properties b/zksandbox/gradle.properties
index 118291ab4d..104c09283c 100644
--- a/zksandbox/gradle.properties
+++ b/zksandbox/gradle.properties
@@ -1,2 +1,2 @@
 group=org.zkoss.zk
-version=10.1.0
+version=10.2.0-SNAPSHOT
diff --git a/zktest/gradle.properties b/zktest/gradle.properties
index e3dedeef01..56da958824 100644
--- a/zktest/gradle.properties
+++ b/zktest/gradle.properties
@@ -1,5 +1,5 @@
 group=org.zkoss.zk
-version=10.1.0
+version=10.2.0-SNAPSHOT
 junitVersion=5.10.0
 zktestWithoutA11y=false
 zktestWithJacoco=false