diff --git a/ShadowsocksX-NG/Base.lproj/PreferencesWinController.xib b/ShadowsocksX-NG/Base.lproj/PreferencesWinController.xib
index 8d868fa..a27c169 100644
--- a/ShadowsocksX-NG/Base.lproj/PreferencesWinController.xib
+++ b/ShadowsocksX-NG/Base.lproj/PreferencesWinController.xib
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="13529" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14113" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
         <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="13529"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14113"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
@@ -19,7 +19,7 @@
             <windowStyleMask key="styleMask" titled="YES" closable="YES"/>
             <windowPositionMask key="initialPositionMask" topStrut="YES" bottomStrut="YES"/>
             <rect key="contentRect" x="609" y="533" width="480" height="326"/>
-            <rect key="screenRect" x="0.0" y="0.0" width="1920" height="1058"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="1680" height="1027"/>
             <view key="contentView" wantsLayer="YES" id="se5-gp-TjO">
                 <rect key="frame" x="0.0" y="0.0" width="480" height="326"/>
                 <autoresizingMask key="autoresizingMask"/>
@@ -382,97 +382,6 @@
                                     </constraints>
                                 </view>
                             </tabViewItem>
-                            <tabViewItem label="Kcptun" identifier="kcptun" id="n2m-5k-0Ws">
-                                <view key="view" id="gw2-in-3dl">
-                                    <rect key="frame" x="0.0" y="0.0" width="480" height="270"/>
-                                    <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                                    <subviews>
-                                        <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" allowsCharacterPickerTouchBarItem="YES" translatesAutoresizingMaskIntoConstraints="NO" id="Dyc-qt-SSc">
-                                            <rect key="frame" x="18" y="198" width="223" height="17"/>
-                                            <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="right" title="Local Kcptun Listen Port:" id="pdk-mh-FAj">
-                                                <font key="font" metaFont="system"/>
-                                                <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
-                                                <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
-                                            </textFieldCell>
-                                        </textField>
-                                        <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" allowsCharacterPickerTouchBarItem="YES" translatesAutoresizingMaskIntoConstraints="NO" id="xK4-Po-1CN">
-                                            <rect key="frame" x="18" y="231" width="223" height="17"/>
-                                            <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="right" title="Local Kcptun Listen Address:" id="ejW-7L-9bP">
-                                                <font key="font" metaFont="system"/>
-                                                <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
-                                                <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
-                                            </textFieldCell>
-                                        </textField>
-                                        <textField verticalHuggingPriority="750" allowsCharacterPickerTouchBarItem="YES" translatesAutoresizingMaskIntoConstraints="NO" id="jK6-0O-O8H">
-                                            <rect key="frame" x="247" y="228" width="163" height="22"/>
-                                            <constraints>
-                                                <constraint firstAttribute="width" constant="163" id="nae-H0-Mxk"/>
-                                            </constraints>
-                                            <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" state="on" borderStyle="bezel" drawsBackground="YES" id="pD7-87-JCB">
-                                                <font key="font" metaFont="system"/>
-                                                <color key="textColor" name="textColor" catalog="System" colorSpace="catalog"/>
-                                                <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
-                                            </textFieldCell>
-                                            <connections>
-                                                <binding destination="uQz-5y-ZL2" name="value" keyPath="values.Kcptun.LocalHost" id="q8c-ct-vnN"/>
-                                            </connections>
-                                        </textField>
-                                        <textField verticalHuggingPriority="750" allowsCharacterPickerTouchBarItem="YES" translatesAutoresizingMaskIntoConstraints="NO" id="sfN-cK-7R8">
-                                            <rect key="frame" x="247" y="196" width="60" height="22"/>
-                                            <constraints>
-                                                <constraint firstAttribute="width" constant="60" id="0nA-C5-ILL"/>
-                                            </constraints>
-                                            <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" state="on" borderStyle="bezel" alignment="right" drawsBackground="YES" id="HXm-3x-Tre">
-                                                <font key="font" metaFont="system"/>
-                                                <color key="textColor" name="textColor" catalog="System" colorSpace="catalog"/>
-                                                <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
-                                            </textFieldCell>
-                                            <connections>
-                                                <binding destination="uQz-5y-ZL2" name="value" keyPath="values.Kcptun.LocalPort" id="wFe-W7-zZK"/>
-                                                <outlet property="formatter" destination="C7t-aU-bub" id="iNv-bX-XNl"/>
-                                            </connections>
-                                        </textField>
-                                        <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Gjd-0g-WMg">
-                                            <rect key="frame" x="247" y="164" width="60" height="22"/>
-                                            <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" state="on" borderStyle="bezel" alignment="right" drawsBackground="YES" id="wRJ-eh-wsG">
-                                                <font key="font" metaFont="system"/>
-                                                <color key="textColor" name="textColor" catalog="System" colorSpace="catalog"/>
-                                                <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
-                                            </textFieldCell>
-                                            <connections>
-                                                <binding destination="uQz-5y-ZL2" name="value" keyPath="values.Kcptun.Conn" id="1BX-t0-d3c"/>
-                                                <outlet property="formatter" destination="1En-Ey-GAr" id="j7y-xH-T4M"/>
-                                            </connections>
-                                        </textField>
-                                        <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="AlK-Cr-J8p">
-                                            <rect key="frame" x="18" y="167" width="223" height="17"/>
-                                            <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="right" title="Num of Kcptun connections:" id="FSi-9j-QBe">
-                                                <font key="font" metaFont="system"/>
-                                                <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
-                                                <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
-                                            </textFieldCell>
-                                        </textField>
-                                    </subviews>
-                                    <constraints>
-                                        <constraint firstItem="Gjd-0g-WMg" firstAttribute="leading" secondItem="AlK-Cr-J8p" secondAttribute="trailing" constant="8" symbolic="YES" id="1Ik-7U-fOC"/>
-                                        <constraint firstItem="sfN-cK-7R8" firstAttribute="leading" secondItem="Dyc-qt-SSc" secondAttribute="trailing" constant="8" symbolic="YES" id="4Cq-Xv-Iw0"/>
-                                        <constraint firstItem="sfN-cK-7R8" firstAttribute="trailing" secondItem="Gjd-0g-WMg" secondAttribute="trailing" id="4Ih-25-Jcr"/>
-                                        <constraint firstItem="xK4-Po-1CN" firstAttribute="leading" secondItem="gw2-in-3dl" secondAttribute="leading" constant="20" symbolic="YES" id="EVQ-0K-ba0"/>
-                                        <constraint firstItem="sfN-cK-7R8" firstAttribute="leading" secondItem="Gjd-0g-WMg" secondAttribute="leading" id="FgI-RP-3qN"/>
-                                        <constraint firstItem="jK6-0O-O8H" firstAttribute="leading" secondItem="xK4-Po-1CN" secondAttribute="trailing" constant="8" symbolic="YES" id="bpQ-Rc-mZA"/>
-                                        <constraint firstItem="Gjd-0g-WMg" firstAttribute="top" secondItem="sfN-cK-7R8" secondAttribute="bottom" constant="10" symbolic="YES" id="dhe-rt-i5y"/>
-                                        <constraint firstItem="AlK-Cr-J8p" firstAttribute="baseline" secondItem="Gjd-0g-WMg" secondAttribute="baseline" id="gLR-wc-8Ty"/>
-                                        <constraint firstItem="jK6-0O-O8H" firstAttribute="top" secondItem="gw2-in-3dl" secondAttribute="top" constant="20" symbolic="YES" id="nQz-hC-lsV"/>
-                                        <constraint firstItem="xK4-Po-1CN" firstAttribute="baseline" secondItem="jK6-0O-O8H" secondAttribute="baseline" id="nVi-Hx-fA6"/>
-                                        <constraint firstItem="xK4-Po-1CN" firstAttribute="leading" secondItem="Dyc-qt-SSc" secondAttribute="leading" id="nox-TS-dVW"/>
-                                        <constraint firstAttribute="trailing" secondItem="jK6-0O-O8H" secondAttribute="trailing" constant="70" id="pHp-9M-UVn"/>
-                                        <constraint firstItem="Dyc-qt-SSc" firstAttribute="leading" secondItem="AlK-Cr-J8p" secondAttribute="leading" id="q3V-cG-Lmq"/>
-                                        <constraint firstItem="sfN-cK-7R8" firstAttribute="top" secondItem="jK6-0O-O8H" secondAttribute="bottom" constant="10" symbolic="YES" id="uTV-uK-wqG"/>
-                                        <constraint firstItem="Dyc-qt-SSc" firstAttribute="centerY" secondItem="sfN-cK-7R8" secondAttribute="centerY" id="wti-lk-lbk"/>
-                                        <constraint firstItem="jK6-0O-O8H" firstAttribute="leading" secondItem="sfN-cK-7R8" secondAttribute="leading" id="x37-sl-y3z"/>
-                                    </constraints>
-                                </view>
-                            </tabViewItem>
                             <tabViewItem label="Interfaces" identifier="interfaces" id="eDR-CZ-P4p">
                                 <view key="view" id="Ati-LQ-RB7">
                                     <rect key="frame" x="0.0" y="0.0" width="480" height="326"/>