diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..ea2efeb
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,7 @@
+2024-07-01 [version 0.0.1.SNAPSHOT]
+## 🐣 New Features
+* arcus-test-container 0.0.1.SNAPSHOT is opened. (Apache License 2.0)
+* Add ArcusContainer for single node cache server.
+* Add ArcusClusterContainer for cluster cache servers.
+## ✅ Testing
+* Add unit test for ArcusContainer and ArcusClusterContainer.
diff --git a/README.md b/README.md
index cdb3272..2bd1e01 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ ___
 ### Gradle
 ```groovy
 dependencies {
-    testImplementation "org.jam2in:arcus-test-container:1.0.0-SNAPSHOT"
+    testImplementation "org.jam2in:arcus-test-container:0.0.1-SNAPSHOT"
 }
 ```
 
@@ -19,7 +19,7 @@ dependencies {
 <dependency>
     <groupId>org.jam2in</groupId>
     <artifactId>arcus-test-container</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
+    <version>0.0.1-SNAPSHOT</version>
     <scope>test</scope>
 </dependency>
 ```