diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index a0d0e5b..0000000
--- a/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2018 茂名聚合科技有限公司
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/app.go b/app.go
index cf5479a..0eb23c6 100644
--- a/app.go
+++ b/app.go
@@ -8,8 +8,6 @@ import (
 	"strings"
 )
 
-const Version = "1.0.13"
-
 type App struct {
 	V4Region ip2region.Ip2Region // IPV4
 	V4db     v4.Pointer          // IPV4
diff --git a/app_test.go b/app_test.go
index 17de700..64813c0 100644
--- a/app_test.go
+++ b/app_test.go
@@ -22,3 +22,17 @@ func TestIp(t *testing.T) {
 	t.Logf("%+v", app.V6db.Find("240e:3b4:38e4:3295:7093:af6c:e545:f2e9"))
 	t.Log(app.V4Region.MemorySearch("61.241.55.180"))
 }
+
+func BenchmarkIpv4(b *testing.B) {
+	app.InitIPData()
+	for i := 0; i < b.N; i++ {
+		b.Log(app.V4db.Find("61.241.55.180"))
+	}
+}
+
+func BenchmarkIpv5(b *testing.B) {
+	app.InitIPData()
+	for i := 0; i < b.N; i++ {
+		b.Log(app.V6db.Find("240e:3b4:38e4:3295:7093:af6c:e545:f2e9"))
+	}
+}
diff --git a/v4/qqwry.dat b/v4/qqwry.dat
index e522d27..555db57 100644
Binary files a/v4/qqwry.dat and b/v4/qqwry.dat differ
diff --git a/version.go b/version.go
new file mode 100644
index 0000000..306d47c
--- /dev/null
+++ b/version.go
@@ -0,0 +1,3 @@
+package goip
+
+const Version = "1.0.14"