diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5935def..ad6c305 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## CHANGE LOG
 
+### v6.2.1
+
 ### v6.2.0
 
 - 重写与授权相关的函数并归入Qiniu::Auth空间，原授权凭证生成类维持不变。
diff --git a/Gemfile.lock b/Gemfile.lock
index 9ce9541..1d1df68 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    qiniu (6.2.0)
+    qiniu (6.2.1)
       json (~> 1.7)
       mime-types (~> 1.19)
       rest-client (~> 1.6)
diff --git a/lib/qiniu.rb b/lib/qiniu.rb
index e7a36e5..302125a 100755
--- a/lib/qiniu.rb
+++ b/lib/qiniu.rb
@@ -156,16 +156,6 @@ module Qiniu
         code == StatusOK ? data : false
       end
 
-      def publish(domain, bucket)
-        code, data = Storage.publish(domain, bucket)
-        code == StatusOK
-      end
-
-      def unpublish(domain)
-        code, data = Storage.unpublish(domain)
-        code == StatusOK
-      end
-
       def drop(bucket)
         code, data = Storage.drop(bucket)
         code == StatusOK
diff --git a/lib/qiniu/management.rb b/lib/qiniu/management.rb
index 911d2e1..300372b 100755
--- a/lib/qiniu/management.rb
+++ b/lib/qiniu/management.rb
@@ -60,18 +60,6 @@ module Qiniu
           return HTTP.management_post(url)
         end # delete
 
-        def publish(domain, bucket)
-          encoded_domain = Utils.urlsafe_base64_encode(domain)
-          url = Config.settings[:rs_host] + "/publish/#{encoded_domain}/from/#{bucket}"
-          return HTTP.management_post(url)
-        end # publish
-
-        def unpublish(domain)
-          encoded_domain = Utils.urlsafe_base64_encode(domain)
-          url = Config.settings[:rs_host] + "/unpublish/#{encoded_domain}"
-          return HTTP.management_post(url)
-        end # unpublish
-
         def drop(bucket)
           url = Config.settings[:rs_host] + "/drop/#{bucket}"
           return HTTP.management_post(url)
diff --git a/lib/qiniu/version.rb b/lib/qiniu/version.rb
index 820edea..8b5af3f 100755
--- a/lib/qiniu/version.rb
+++ b/lib/qiniu/version.rb
@@ -4,7 +4,7 @@ module Qiniu
     module Version
       MAJOR = 6
       MINOR = 2
-      PATCH = 0
+      PATCH = 1
       # Returns a version string by joining <tt>MAJOR</tt>, <tt>MINOR</tt>, and <tt>PATCH</tt> with <tt>'.'</tt>
       #
       # Example