diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4af5c6b3..05adca96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,47 @@
 CHANGELOG
 =========
 
+1.1.5 (Oct 15, 2014)
+====================
+
+* Improvements
+    * [#253](https://github.com/leo-project/leofs/issues/253) ``leo_manager`` Inform administrators via a log if the number of replica is changed
+    * ``leo_logger`` Implemented that it remove a zero-byte log when closing/rotating
+* Fixed Bugs
+    * [#254](https://github.com/leo-project/leofs/issues/254) ``leo_redundant_manager`` Failed creating RING on cheap VM environment
+* Used libraries
+    * leo project
+        * [leo_backend-db v1.1.2](https://github.com/leo-project/leo_backend_db.git)
+        * [leo_cache v0.6.0](https://github.com/leo-project/leo_cache.git)
+        * [leo_commons v1.1.0](https://github.com/leo-project/leo_commons.git)
+        * [leo_dcerl v0.2.11](https://github.com/leo-project/leo_dcerl.git)
+        * [leo_logger v1.1.3](https://github.com/leo-project/leo_logger.git)
+        * [leo_mcerl v0.4.1](https://github.com/leo-project/leo_mcerl.git)
+        * [leo_mq v1.0.10](https://github.com/leo-project/leo_mq.git)
+        * [leo_object_storage v1.1.5](https://github.com/leo-project/leo_object_storage.git)
+        * [leo_ordning_reda v0.10.9](https://github.com/leo-project/leo_ordning_reda.git)
+        * [leo_redundant_manager 1.9.0](https://github.com/leo-project/leo_redundant_manager.git)
+        * [leo_rpc v0.8.10](https://github.com/leo-project/leo_rpc.git)
+        * [leo_pod v0.6.2](https://github.com/leo-project/leo_pod.git)
+        * [leo_s3_libs v1.1.3](https://github.com/leo-project/leo_s3_libs.git)
+        * [leo_statistics v1.0.7](https://github.com/leo-project/leo_statistics.git)
+        * [savanna_agent v0.4.4](https://github.com/leo-project/savanna_agent.git)
+        * [savanna_commons v0.8.6](https://github.com/leo-project/savanna_commons.git)
+        * [erpcgen v0.2.3](https://github.com/leo-project/erpcgen.git)
+        * [nfs_rpc_server v0.2.2](https://github.com/leo-project/nfs_rpc_server.git)
+        * [leo_gateway v1.1.5](https://github.com/leo-project/leo_gateway.git)
+        * [leo_manager v1.1.5](https://github.com/leo-project/leo_manager.git)
+        * [leo_storage v1.1.5](https://github.com/leo-project/leo_storage.git)
+    * others
+        * [bitcask v1.7.0](https://github.com/basho/bitcask.git)
+        * [cowboy v0.8.6](https://github.com/extend/cowboy.git)
+        * [cowlib v0.6.2](https://github.com/extend/cowboy.git)
+        * [eleveldb v1.4.10](https://github.com/basho/eleveldb.git)
+        * [folsom v0.8.1](https://github.com/boundary/folsom.git)
+        * [jiffy v0.8.5](https://github.com/davisp/jiffy.git)
+        * [lz4 v0.2.2](https://github.com/leo-project/erlang-lz4.git) - forked from [szktty/erlang-lz4](https://github.com/szktty/erlng-lz4)
+
+
 1.1.4 (Oct 3, 2014)
 ====================
 
diff --git a/leofs.mk b/leofs.mk
index e1dcbc95..6c2ee9da 100644
--- a/leofs.mk
+++ b/leofs.mk
@@ -1 +1 @@
-LEOFS_VERSION=1.1.4
+LEOFS_VERSION=1.1.5
diff --git a/pkg/leo_storage/files/leo_storage.conf b/pkg/leo_storage/files/leo_storage.conf
index d2f6a72d..1cc77c94 100644
--- a/pkg/leo_storage/files/leo_storage.conf
+++ b/pkg/leo_storage/files/leo_storage.conf
@@ -133,6 +133,9 @@ log.member_dir = /var/log/leo_storage/ring
 ## Output log file(s) - ring
 log.ring_dir = /var/log/leo_storage/ring
 
+## Output data-diagnosis log
+log.is_enable_diagnosis_log = true
+
 
 ## --------------------------------------------------------------------
 ## STORAGE - Other Directories
@@ -168,7 +171,7 @@ leo_ordning_reda.temp_stacked_dir = "/var/db/leo_storage/ord_reda/"
 ## --------------------------------------------------------------------
 ## RPC-Server's acceptors
 ## this value must be determinted by following logic
-## rpc.server.acceptor need to be larger than 
+## rpc.server.acceptor need to be larger than
 ## rpc.client.connection_pool(buffer)_size * "# of storage nodes + # of manager nodes in your cluster"
 ## The default value is suitable for less than 16 nodes in a cluster
 ## rpc.server.acceptors = 128
diff --git a/rebar.config b/rebar.config
index 9ef270ed..f4534562 100644
--- a/rebar.config
+++ b/rebar.config
@@ -23,9 +23,9 @@
 {require_otp_vsn, "R15B03|R16B*|17"}.
 
 {deps, [
-        {leo_manager, ".*", {git, "https://github.com/leo-project/leo_manager.git", {tag, "1.1.4"}}},
-        {leo_storage, ".*", {git, "https://github.com/leo-project/leo_storage.git", {tag, "1.1.4"}}},
-        {leo_gateway, ".*", {git, "https://github.com/leo-project/leo_gateway.git", {tag, "1.1.4"}}}
+        {leo_manager, ".*", {git, "https://github.com/leo-project/leo_manager.git", {tag, "1.1.5"}}},
+        {leo_storage, ".*", {git, "https://github.com/leo-project/leo_storage.git", {tag, "1.1.5"}}},
+        {leo_gateway, ".*", {git, "https://github.com/leo-project/leo_gateway.git", {tag, "1.1.5"}}}
        ]}.
 
 {sub_dirs, [
diff --git a/releasenotes/leofs-1.1.md b/releasenotes/leofs-1.1.md
index 83dc3e44..9252da3b 100644
--- a/releasenotes/leofs-1.1.md
+++ b/releasenotes/leofs-1.1.md
@@ -1,3 +1,53 @@
+1.1.5
+=====
+
+Features and Improvements for LeoFS
+-----------------------------------
+
+* Improved
+    * [#253](https://github.com/leo-project/leofs/issues/253) ``leo_manager`` Inform administrators via a log if the number of replica is changed
+    * ``leo_logger`` Implemented that it remove a zero-byte log when closing/rotating
+
+Bugs Fixed
+-----------
+* [#254](https://github.com/leo-project/leofs/issues/254) ``leo_redundant_manager`` Failed creating RING on cheap VM environment
+
+
+Used Libraries
+---------------
+
+* leo project
+    * [leo_backend-db v1.1.2](https://github.com/leo-project/leo_backend_db.git)
+    * [leo_cache v0.6.0](https://github.com/leo-project/leo_cache.git)
+    * [leo_commons v1.1.0](https://github.com/leo-project/leo_commons.git)
+    * [leo_dcerl v0.2.11](https://github.com/leo-project/leo_dcerl.git)
+    * [leo_logger v1.1.3](https://github.com/leo-project/leo_logger.git)
+    * [leo_mcerl v0.4.1](https://github.com/leo-project/leo_mcerl.git)
+    * [leo_mq v1.0.10](https://github.com/leo-project/leo_mq.git)
+    * [leo_object_storage v1.1.5](https://github.com/leo-project/leo_object_storage.git)
+    * [leo_ordning_reda v0.10.9](https://github.com/leo-project/leo_ordning_reda.git)
+    * [leo_redundant_manager 1.9.0](https://github.com/leo-project/leo_redundant_manager.git)
+    * [leo_rpc v0.8.10](https://github.com/leo-project/leo_rpc.git)
+    * [leo_pod v0.6.2](https://github.com/leo-project/leo_pod.git)
+    * [leo_s3_libs v1.1.3](https://github.com/leo-project/leo_s3_libs.git)
+    * [leo_statistics v1.0.7](https://github.com/leo-project/leo_statistics.git)
+    * [savanna_agent v0.4.4](https://github.com/leo-project/savanna_agent.git)
+    * [savanna_commons v0.8.6](https://github.com/leo-project/savanna_commons.git)
+    * [erpcgen v0.2.3](https://github.com/leo-project/erpcgen.git)
+    * [nfs_rpc_server v0.2.2](https://github.com/leo-project/nfs_rpc_server.git)
+    * [leo_gateway v1.1.5](https://github.com/leo-project/leo_gateway.git)
+    * [leo_manager v1.1.5](https://github.com/leo-project/leo_manager.git)
+    * [leo_storage v1.1.5](https://github.com/leo-project/leo_storage.git)
+* others
+    * [bitcask v1.7.0](https://github.com/basho/bitcask.git)
+    * [cowboy v0.8.6](https://github.com/extend/cowboy.git)
+    * [cowlib v0.6.2](https://github.com/extend/cowboy.git)
+    * [eleveldb v1.4.10](https://github.com/basho/eleveldb.git)
+    * [folsom v0.8.1](https://github.com/boundary/folsom.git)
+    * [jiffy v0.8.5](https://github.com/davisp/jiffy.git)
+    * [lz4 v0.2.2](https://github.com/leo-project/erlang-lz4.git) - forked from [szktty/erlang-lz4](https://github.com/szktty/erlng-lz4)
+
+
 1.1.4
 =====