diff --git a/README.md b/README.md
index dab5ca6fb..5d8736c79 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ SeaweedFS started by implementing [Facebook's Haystack design paper](http://www.
 * Optional [filer server][Filer] provides "normal" directories and files via http
 * Optionally fix the orientation for jpeg pictures
 * Support Etag, Accept-Range, Last-Modified, etc.
-* Support in-memory/leveldb/boltdb mode tuning for memory/performance balance.
+* Support in-memory/leveldb/boltdb/btree mode tuning for memory/performance balance.
 
 [Filer]: https://github.com/chrislusf/seaweedfs/wiki/Filer
 
diff --git a/weed/util/constants.go b/weed/util/constants.go
index 0a0a37c47..0ac306835 100644
--- a/weed/util/constants.go
+++ b/weed/util/constants.go
@@ -1,5 +1,5 @@
 package util
 
 const (
-	VERSION = "0.74"
+	VERSION = "0.75"
 )