diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0ef8be1..307146b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,7 +55,7 @@ configure_file(
   IMMEDIATE @ONLY)
 
 set(QMSGPACK_MAJOR	"0")
-set(QMSGPACK_MINOR	"0")
+set(QMSGPACK_MINOR	"1")
 set(QMSGPACK_VERSION	"0")
 
 set(MSGPACK_QT_LIB_VERSION_STRING "${QMSGPACK_MAJOR}.${QMSGPACK_MINOR}.${QMSGPACK_VERSION}")
diff --git a/src/msgpack-qt.pro b/src/msgpack-qt.pro
index cfb1e2f..f1c6d18 100644
--- a/src/msgpack-qt.pro
+++ b/src/msgpack-qt.pro
@@ -11,15 +11,19 @@ QT       -= gui
 TARGET = qmsgpack
 CONFIG   -= app_bundle
 
-TEMPLATE = app
-#DEFINES += MSGPACK_MAKE_LIB
-target.path = ../build
+TEMPLATE = lib
+DEFINES += MSGPACK_MAKE_LIB
+DESTDIR = $$_PRO_FILE_PWD_/../bin
 INSTALLS += target
 QMAKE_CXXFLAGS += -fPIC
 
+CONFIG   += debug_and_release
+CONFIG(debug, debug|release) {
+     TARGET = $$join(TARGET,,,d)
+}
 
-SOURCES += main.cpp \
-    msgpack.cpp \
+
+SOURCES += msgpack.cpp \
     msgpack_common.cpp \
     private/pack_p.cpp \
     private/unpack_p.cpp
diff --git a/src/msgpack.cpp b/src/msgpack.cpp
index 278ab50..0fb155d 100644
--- a/src/msgpack.cpp
+++ b/src/msgpack.cpp
@@ -1,5 +1,4 @@
 #include "msgpack.h"
-#include <QDebug>
 #include "private/unpack_p.h"
 #include "private/pack_p.h"
 #include <QByteArray>
@@ -12,7 +11,6 @@ QVariant MsgPack::unpack(const QByteArray &data)
     return MsgPackPrivate::unpack(p, end);
 }
 
-
 QByteArray MsgPack::pack(const QVariant &variant)
 {
     quint8 *p = 0;
@@ -27,14 +25,17 @@ QByteArray MsgPack::pack(const QVariant &variant)
     return arr;
 }
 
-
 bool MsgPack::registerPacker(QMetaType::Type qType, qint8 msgpackType, MsgPack::pack_user_f packer)
 {
     return MsgPackPrivate::register_packer(qType, msgpackType, packer);
 }
 
-
 bool MsgPack::registerUnpacker(qint8 msgpackType, MsgPack::unpack_user_f unpacker)
 {
     return MsgPackPrivate::register_unpacker(msgpackType, unpacker);
 }
+
+void MsgPack::setCompatibilityModeEnabled(bool enabled)
+{
+    MsgPackPrivate::compatibilityMode = enabled;
+}
diff --git a/src/msgpack.h b/src/msgpack.h
index 2592e34..5a86fae 100644
--- a/src/msgpack.h
+++ b/src/msgpack.h
@@ -12,6 +12,8 @@ namespace MsgPack
 
     MSGPACK_EXPORT QByteArray pack(const QVariant &variant);
     MSGPACK_EXPORT bool registerPacker(QMetaType::Type qType, qint8 msgpackType, pack_user_f packer);
+
+    MSGPACK_EXPORT void setCompatibilityModeEnabled(bool enabled);
 }
 
 #endif // MSGPACK_H
diff --git a/src/msgpack_common.cpp b/src/msgpack_common.cpp
index 894435d..8e42e73 100644
--- a/src/msgpack_common.cpp
+++ b/src/msgpack_common.cpp
@@ -6,4 +6,4 @@ QString MsgPack::version()
             .arg(MSGPACK_MAJOR)
             .arg(MSGPACK_MINOR)
             .arg(MSGPACK_VERSION);
-}
\ No newline at end of file
+}
diff --git a/src/msgpack_common.h b/src/msgpack_common.h
index a765236..3c62f7c 100644
--- a/src/msgpack_common.h
+++ b/src/msgpack_common.h
@@ -4,7 +4,7 @@
 #include <QVariant>
 
 #define MSGPACK_MAJOR 0
-#define MSGPACK_MINOR 0
+#define MSGPACK_MINOR 1
 #define MSGPACK_VERSION 0
 
 namespace MsgPack {
@@ -15,9 +15,14 @@ namespace MsgPack {
  * return type size
  */
 typedef quint32 (*pack_user_f)(const QVariant &variant, QByteArray &data, bool write);
-
+/**
+ * unpack user type to QVariant
+ */
 typedef QVariant (*unpack_user_f)(const QByteArray &data);
-
+/**
+ * @brief version
+ * @return current version
+ */
 QString version();
 }
 
diff --git a/src/msgpack_common.h.in b/src/msgpack_common.h.in
index 231c1b5..9e140bc 100644
--- a/src/msgpack_common.h.in
+++ b/src/msgpack_common.h.in
@@ -15,9 +15,14 @@ namespace MsgPack {
  * return type size
  */
 typedef quint32 (*pack_user_f)(const QVariant &variant, QByteArray &data, bool write);
-
+/**
+ * unpack user type to QVariant
+ */
 typedef QVariant (*unpack_user_f)(const QByteArray &data);
-
+/**
+ * @brief version
+ * @return current version
+ */
 QString version();
 }
 
diff --git a/src/private/pack_p.cpp b/src/private/pack_p.cpp
index 79f4492..0380df8 100644
--- a/src/private/pack_p.cpp
+++ b/src/private/pack_p.cpp
@@ -4,6 +4,7 @@
 #include <QDebug>
 
 QHash<QMetaType::Type, MsgPackPrivate::packer_t> MsgPackPrivate::user_packers;
+bool MsgPackPrivate::compatibilityMode = false;
 
 quint8 *MsgPackPrivate::pack(const QVariant &v, quint8 *p, bool wr)
 {
@@ -17,7 +18,7 @@ quint8 *MsgPackPrivate::pack(const QVariant &v, quint8 *p, bool wr)
     else if (t == QMetaType::QString)
         p = pack_string(v.toString(), p, wr);
     else if (t == QMetaType::QVariantList)
-        p = pack_list(v.toList(), p, wr);
+        p = pack_array(v.toList(), p, wr);
     else if (t == QMetaType::QStringList)
         p = pack_stringlist(v.toStringList(), p, wr);
     else if (t == QMetaType::LongLong)
@@ -27,7 +28,7 @@ quint8 *MsgPackPrivate::pack(const QVariant &v, quint8 *p, bool wr)
     else if (t == QMetaType::Double)
         p = pack_double(v.toDouble(), p, wr);
     else if (t == QMetaType::QByteArray)
-        p = pack_array(v.toByteArray(), p, wr);
+        p = pack_bin(v.toByteArray(), p, wr);
     else if (t == QMetaType::QVariantMap)
         p = pack_map(v.toMap(), p, wr);
     else {
@@ -122,7 +123,7 @@ quint8 *MsgPackPrivate::pack_bool(const QVariant &v, quint8 *p, bool wr)
     return p + 1;
 }
 
-quint8 *MsgPackPrivate::pack_listlen(quint32 len, quint8 *p, bool wr)
+quint8 *MsgPackPrivate::pack_arraylen(quint32 len, quint8 *p, bool wr)
 {
     if (len <= 15) {
         if (wr) *p = 0x90 | len;
@@ -141,10 +142,10 @@ quint8 *MsgPackPrivate::pack_listlen(quint32 len, quint8 *p, bool wr)
     return p;
 }
 
-quint8 *MsgPackPrivate::pack_list(const QVariantList &list, quint8 *p, bool wr)
+quint8 *MsgPackPrivate::pack_array(const QVariantList &list, quint8 *p, bool wr)
 {
     int len = list.length();
-    p = pack_listlen(len, p, wr);
+    p = pack_arraylen(len, p, wr);
     foreach (QVariant item, list)
         p = pack(item, p, wr);
     return p;
@@ -153,7 +154,7 @@ quint8 *MsgPackPrivate::pack_list(const QVariantList &list, quint8 *p, bool wr)
 quint8 *MsgPackPrivate::pack_stringlist(const QStringList &list, quint8 *p, bool wr)
 {
     int len = list.length();
-    p = pack_listlen(len, p, wr);
+    p = pack_arraylen(len, p, wr);
     foreach (QString item, list)
         p = pack_string(item, p, wr);
     return p;
@@ -165,7 +166,8 @@ quint8 *MsgPackPrivate::pack_string(const QString &str, quint8 *p, bool wr)
     if (len <= 31) {
         if (wr) *p = 0xa0 | len;
         p++;
-    } else if (len <= std::numeric_limits<quint8>::max()) {
+    } else if (len <= std::numeric_limits<quint8>::max() &&
+               compatibilityMode == false) {
         if (wr) *p = 0xd9;
         p++;
         if (wr) *p = len;
@@ -203,21 +205,22 @@ quint8 *MsgPackPrivate::pack_double(double i, quint8 *p, bool wr)
     return p + 8;
 }
 
-quint8 *MsgPackPrivate::pack_array(const QByteArray &arr, quint8 *p, bool wr)
+quint8 *MsgPackPrivate::pack_bin(const QByteArray &arr, quint8 *p, bool wr)
 {
     int len = arr.length();
-    if (len <= std::numeric_limits<quint8>::max()) {
+    if (len <= std::numeric_limits<quint8>::max() &&
+            compatibilityMode == false) {
         if (wr) *p = 0xc4;
         p++;
         if (wr) *p = len;
         p++;
     } else if (len <= std::numeric_limits<quint16>::max()) {
-        if (wr) *p = 0xc5;
+        if (wr) *p = compatibilityMode ? 0xc5 : 0xda;
         p++;
         if (wr) _msgpack_store16(p, len);
         p += 2;
     } else {
-        if (wr) *p = 0xc6;
+        if (wr) *p = compatibilityMode ? 0xc6 : 0xdb;
         p++;
         if (wr) _msgpack_store32(p, len);
         p += 4;
diff --git a/src/private/pack_p.h b/src/private/pack_p.h
index 5b8ceaf..ed0d5b3 100644
--- a/src/private/pack_p.h
+++ b/src/private/pack_p.h
@@ -13,6 +13,7 @@ typedef struct {
 } packer_t;
 bool register_packer(QMetaType::Type q_type, qint8 msgpack_type, MsgPack::pack_user_f packer);
 extern QHash<QMetaType::Type, packer_t> user_packers;
+extern bool compatibilityMode;
 
 quint8 * pack(const QVariant &v, quint8 *p, bool wr);
 
@@ -23,13 +24,13 @@ quint8 * pack_ulonglong(quint64 i, quint8 *p, bool wr);
 
 quint8 * pack_bool(const QVariant &v, quint8 *p, bool wr);
 
-quint8 * pack_listlen(quint32 len, quint8 *p, bool wr);
-quint8 * pack_list(const QVariantList &list, quint8 *p, bool wr);
+quint8 * pack_arraylen(quint32 len, quint8 *p, bool wr);
+quint8 * pack_array(const QVariantList &list, quint8 *p, bool wr);
 quint8 * pack_stringlist(const QStringList &list, quint8 *p, bool wr);
 
 quint8 * pack_string(const QString &str, quint8 *p, bool wr);
 quint8 * pack_double(double i, quint8 *p, bool wr);
-quint8 * pack_array(const QByteArray &arr, quint8 *p, bool wr);
+quint8 * pack_bin(const QByteArray &arr, quint8 *p, bool wr);
 quint8 * pack_map(const QVariantMap &map, quint8 *p, bool wr);
 quint8 * pack_user(const QVariant &v, quint8 *p, bool wr);
 }