Change initial version to 0.0.1
diff --git a/README.md b/README.md
index 8f24c13..d076b21 100644
--- a/README.md
+++ b/README.md
@@ -23,10 +23,6 @@
 
 The Pulsar Node.js client can be used to create Pulsar producers and consumers in Node.js.
 
-## Compatibility
-
-This Node.js client is developed and tested using Apache Pulsar 2.3.0
-
 ## Requirements
 
 Pulsar Node.js client library is based on the C++ client library. Follow the instructions for
@@ -40,6 +36,16 @@
 Also, this library works only in Node.js 10.x or later because it uses the
 [node-addon-api](https://github.com/nodejs/node-addon-api) module to wrap the C++ library.
 
+## Compatibility
+
+Compatibility between each version of the Node.js client and the C++ client is as follows:
+
+| Node.js client | C++ client     |
+|----------------|----------------|
+| 0.0.1          | 2.3.0 or later |
+
+If an incompatible version of the C++ client is installed, you may fail to build or run this library.
+
 ## How to build
 
 ### Install dependent npm modules and build Pulsar client library:
diff --git a/package-lock.json b/package-lock.json
index b885818..4a8725c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "pulsar-client",
-  "version": "2.4.0-SNAPSHOT",
+  "version": "0.0.1-rc.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index c62287d..5798bec 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pulsar-client",
-  "version": "2.4.0-SNAPSHOT",
+  "version": "0.0.1-rc.0",
   "description": "Pulsar Node.js client",
   "main": "index.js",
   "directories": {