diff --git a/ChangeLog b/ChangeLog
index 06f5d0f..2c391f1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+version 1.0.0
+
+	* [security] MurmurHash was replaced with SipHash.
+
 version 0.9.7
 
 	* add a new statistics option "stats ops" to report the total count
diff --git a/docs/future.md b/docs/future.md
index d011f69..b68786d 100644
--- a/docs/future.md
+++ b/docs/future.md
@@ -19,11 +19,8 @@ Future Plans
     <p />
 
 * Save snapshots periodically.  
-    This can be done by [forking][fork] a child process at slaves.
-    Since slaves are single-threaded, fork will do no harm.
+    This can be done by [forking][fork] a child process when all
+    worker threads are idle.
 
 
-[murmur]: https://code.google.com/p/smhasher/wiki/MurmurHash3
-[siphash]: https://131002.net/siphash/
 [fork]: http://manpages.ubuntu.com/manpages/precise/en/man2/fork.2.html
-[keepalived]: http://www.keepalived.org/
diff --git a/src/constants.hpp b/src/constants.hpp
index b7a91bc..7409e82 100644
--- a/src/constants.hpp
+++ b/src/constants.hpp
@@ -29,7 +29,7 @@ const std::size_t   MAX_REQUEST_LENGTH  = 30 << 20; // 30 MiB
 const int           MAX_SLAVES          = 5;
 const int           MAX_CONSECUTIVE_GCS = 3;
 
-const char          VERSION[] = "yrmcds version 0.9.7";
+const char          VERSION[] = "yrmcds version 1.0.0";
 
 } // namespace yrmcds