diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 91a2255..825ee28 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -46,6 +46,6 @@ jobs:
           files: ${{ github.workspace }}/*.iso
           tag_name: v20.04-${{ steps.tag.outputs.tag }}
           draft: false
-          prerelease: true
+          prerelease: false
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/build.sh b/build.sh
index 666f680..00e6a36 100755
--- a/build.sh
+++ b/build.sh
@@ -5,8 +5,8 @@ ROOT_PATH=$(pwd)
 WORKING_PATH=/root/work
 CHROOT_PATH="${WORKING_PATH}/chroot"
 IMAGE_PATH="${WORKING_PATH}/image"
-KERNEL_VERSION=5.15.16
-PKGREL=1
+KERNEL_VERSION=5.16.5
+PKGREL=2
 sed -i "s/KVER/${KERNEL_VERSION}/g" $(pwd)/files/chroot_build.sh
 sed -i "s/PREL/${PKGREL}/g" $(pwd)/files/chroot_build.sh
 
diff --git a/files/chroot_build.sh b/files/chroot_build.sh
index d95f4c9..3de8779 100755
--- a/files/chroot_build.sh
+++ b/files/chroot_build.sh
@@ -117,6 +117,26 @@ printf '\n### apple-bce start ###\nhid-apple\nsnd-seq\napple-bce\n### apple-bce
 
 printf '\n### applespi start ###\napple_ibridge\napple_ib_tb\napple_ib_als\n### applespi end ###' >>/etc/modules-load.d/applespi.conf
 printf '\n# display f* key in touchbar\noptions apple-ib-tb fnmode=1\n'  >> /etc/modprobe.d/apple-tb.conf
+printf '\n# delay loading of the touchbar driver\ninstall apple-ib-tb /bin/sleep 7; /sbin/modprobe --ignore-install apple-ib-tb' >> /etc/modprobe.d/delay-tb.conf
+
+echo '
+#!/usr/bin/env bash
+echo "Select Touch Bar mode"
+echo
+echo "0: Only show F1-F12"
+echo "1: Show media and brightness controls, use the fn key to switch to F1-12"
+echo "2: Show F1-F12, use the fn key to switch to media and brightness controls"
+echo "3: Only show media and brightness controls"
+echo "4: Only show the escape key"
+read tb
+echo "Changing default mode ..."
+echo "# display f* key in touchbar" > /etc/modprobe.d/apple-tb.conf
+echo "options apple-ib-tb fnmode=$tb" >> /etc/modprobe.d/apple-tb.conf
+bash -c "echo $tb > /sys/class/input/*/device/fnmode"
+echo "Done!"' | tee /usr/local/bin/touchbar >/dev/null
+
+chmod a+x /usr/local/bin/touchbar
+chown root:root /usr/local/bin/touchbar
 
 
 echo >&2 "===]> Info: Update initramfs... "