diff --git a/Dockerfile b/Dockerfile
index ce8061c..912433a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM lsiobase/mono:LTS
+FROM lsiobase/ubuntu:bionic
 
 # set version label
 ARG BUILD_DATE
@@ -9,36 +9,37 @@ LABEL maintainer="thelamer"
 
 # environment settings
 ARG DEBIAN_FRONTEND="noninteractive"
+ARG RADARR_BRANCH="aphrodite"
 ENV XDG_CONFIG_HOME="/config/xdg"
 
 RUN \
- echo "**** install jq ****" && \
+ echo "**** install packages ****" && \
  apt-get update && \
- apt-get install -y \
-	jq && \
+ apt-get install --no-install-recommends -y \
+	jq \
+	libicu60 \
+	libmediainfo0v5 && \
  echo "**** install radarr ****" && \
+ mkdir -p /opt/radarr && \
  if [ -z ${RADARR_RELEASE+x} ]; then \
-	RADARR_RELEASE=$(curl -sL "https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux" \
+	RADARR_RELEASE=$(curl -sL "https://radarr.lidarr.audio/v1/update/${RADARR_BRANCH}/changes?os=linux" \
 	| jq -r '.[0].version'); \
  fi && \
- RADARR_DURL=$(curl -sL "https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux" \
-	| jq -r "first(.[] | select(.version == \"${RADARR_RELEASE}\")) | .url") && \
- mkdir -p \
-	/opt/radarr && \
  curl -o \
- /tmp/radar.tar.gz -L \
-	"${RADARR_DURL}" && \
+ /tmp/radarr.tar.gz -L \
+	"https://radarr.lidarr.audio/v1/update/${RADARR_BRANCH}/updatefile?version=${RADARR_RELEASE}&os=linux&runtime=netcore&arch=x64" && \
  tar ixzf \
- /tmp/radar.tar.gz -C \
+ /tmp/radarr.tar.gz -C \
 	/opt/radarr --strip-components=1 && \
- echo "**** clean up ****" && \
+ echo "**** cleanup ****" && \
  rm -rf \
+	/opt/radarr/Radarr.Update \
 	/tmp/* \
 	/var/lib/apt/lists/* \
 	/var/tmp/*
 
-# add local files
-COPY /root /
+# copy local files
+COPY root/ /
 
 # ports and volumes
 EXPOSE 7878
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 492d722..65efa68 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,4 +1,4 @@
-FROM lsiobase/mono:arm64v8-LTS
+FROM lsiobase/ubuntu:arm64v8-bionic
 
 # set version label
 ARG BUILD_DATE
@@ -9,36 +9,37 @@ LABEL maintainer="thelamer"
 
 # environment settings
 ARG DEBIAN_FRONTEND="noninteractive"
+ARG RADARR_BRANCH="aphrodite"
 ENV XDG_CONFIG_HOME="/config/xdg"
 
 RUN \
- echo "**** install jq ****" && \
+ echo "**** install packages ****" && \
  apt-get update && \
- apt-get install -y \
-	jq && \
+ apt-get install --no-install-recommends -y \
+	jq \
+	libicu60 \
+	libmediainfo0v5 && \
  echo "**** install radarr ****" && \
+ mkdir -p /opt/radarr && \
  if [ -z ${RADARR_RELEASE+x} ]; then \
-	RADARR_RELEASE=$(curl -sL "https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux" \
+	RADARR_RELEASE=$(curl -sL "https://radarr.lidarr.audio/v1/update/${RADARR_BRANCH}/changes?os=linux" \
 	| jq -r '.[0].version'); \
  fi && \
- RADARR_DURL=$(curl -sL "https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux" \
-	| jq -r "first(.[] | select(.version == \"${RADARR_RELEASE}\")) | .url") && \
- mkdir -p \
-	/opt/radarr && \
  curl -o \
- /tmp/radar.tar.gz -L \
-	"${RADARR_DURL}" && \
+ /tmp/radarr.tar.gz -L \
+	"https://radarr.lidarr.audio/v1/update/${RADARR_BRANCH}/updatefile?version=${RADARR_RELEASE}&os=linux&runtime=netcore&arch=arm64" && \
  tar ixzf \
- /tmp/radar.tar.gz -C \
+ /tmp/radarr.tar.gz -C \
 	/opt/radarr --strip-components=1 && \
- echo "**** clean up ****" && \
+ echo "**** cleanup ****" && \
  rm -rf \
+	/opt/radarr/Radarr.Update \
 	/tmp/* \
 	/var/lib/apt/lists/* \
 	/var/tmp/*
 
-# add local files
-COPY /root /
+# copy local files
+COPY root/ /
 
 # ports and volumes
 EXPOSE 7878
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 32978a8..be1f08f 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,4 +1,4 @@
-FROM lsiobase/mono:arm32v7-LTS
+FROM lsiobase/ubuntu:arm32v7-bionic
 
 # set version label
 ARG BUILD_DATE
@@ -9,36 +9,37 @@ LABEL maintainer="thelamer"
 
 # environment settings
 ARG DEBIAN_FRONTEND="noninteractive"
+ARG RADARR_BRANCH="aphrodite"
 ENV XDG_CONFIG_HOME="/config/xdg"
 
 RUN \
- echo "**** install jq ****" && \
+ echo "**** install packages ****" && \
  apt-get update && \
- apt-get install -y \
-	jq && \
+ apt-get install --no-install-recommends -y \
+	jq \
+	libicu60 \
+	libmediainfo0v5 && \
  echo "**** install radarr ****" && \
+ mkdir -p /opt/radarr && \
  if [ -z ${RADARR_RELEASE+x} ]; then \
-	RADARR_RELEASE=$(curl -sL "https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux" \
+	RADARR_RELEASE=$(curl -sL "https://radarr.lidarr.audio/v1/update/${RADARR_BRANCH}/changes?os=linux" \
 	| jq -r '.[0].version'); \
  fi && \
- RADARR_DURL=$(curl -sL "https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux" \
-	| jq -r "first(.[] | select(.version == \"${RADARR_RELEASE}\")) | .url") && \
- mkdir -p \
-	/opt/radarr && \
  curl -o \
- /tmp/radar.tar.gz -L \
-	"${RADARR_DURL}" && \
+ /tmp/radarr.tar.gz -L \
+	"https://radarr.lidarr.audio/v1/update/${RADARR_BRANCH}/updatefile?version=${RADARR_RELEASE}&os=linux&runtime=netcore&arch=arm" && \
  tar ixzf \
- /tmp/radar.tar.gz -C \
+ /tmp/radarr.tar.gz -C \
 	/opt/radarr --strip-components=1 && \
- echo "**** clean up ****" && \
+ echo "**** cleanup ****" && \
  rm -rf \
+	/opt/radarr/Radarr.Update \
 	/tmp/* \
 	/var/lib/apt/lists/* \
 	/var/tmp/*
 
-# add local files
-COPY /root /
+# copy local files
+COPY root/ /
 
 # ports and volumes
 EXPOSE 7878
diff --git a/Jenkinsfile b/Jenkinsfile
index b8287dc..59b96e4 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -101,7 +101,7 @@ pipeline {
       steps{
         script{
           env.EXT_RELEASE = sh(
-            script: ''' curl -sL https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux | jq -r '.[0].version' ''',
+            script: ''' curl -sL https://radarr.lidarr.audio/v1/update/aphrodite/changes?os=linux | jq -r '.[0].version' ''',
             returnStdout: true).trim()
             env.RELEASE_LINK = 'custom_command'
         }
diff --git a/README.md b/README.md
index 04e72d2..3a9e1ab 100644
--- a/README.md
+++ b/README.md
@@ -207,6 +207,7 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **10.15.19:** - Use Netcore builds for preview branch.
 * **08.09.19:** - Pull artifacts from new upstream Azure build env.
 * **01.08.19:** - Rebase to Linuxserver LTS mono version.
 * **13.06.19:** - Add env variable for setting umask.
diff --git a/jenkins-vars.yml b/jenkins-vars.yml
index e988ac7..4b9a19c 100644
--- a/jenkins-vars.yml
+++ b/jenkins-vars.yml
@@ -3,7 +3,7 @@
 # jenkins variables
 project_name: docker-radarr
 external_type: na
-custom_version_command: curl -sL https://radarr.aeonlucid.com/v1/update/aphrodite/changes?os=linux | jq -r '.[0].version'
+custom_version_command: curl -sL https://radarr.lidarr.audio/v1/update/aphrodite/changes?os=linux | jq -r '.[0].version'
 release_type: prerelease
 release_tag: preview
 ls_branch: preview
diff --git a/readme-vars.yml b/readme-vars.yml
index f36e499..c73f09d 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -46,6 +46,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "10.15.19:", desc: "Use Netcore builds for preview branch." }
   - { date: "08.09.19:", desc: "Pull artifacts from new upstream Azure build env." }
   - { date: "01.08.19:", desc: "Rebase to Linuxserver LTS mono version." }
   - { date: "13.06.19:", desc: "Add env variable for setting umask." }
diff --git a/root/etc/cont-init.d/30-config b/root/etc/cont-init.d/30-config
index 0397230..cb95d64 100644
--- a/root/etc/cont-init.d/30-config
+++ b/root/etc/cont-init.d/30-config
@@ -2,6 +2,4 @@
 
 # permissions
 chown -R abc:abc \
-	/config \
-	/opt
-
+	/config 
diff --git a/root/etc/services.d/radarr/run b/root/etc/services.d/radarr/run
index 7214523..037e032 100644
--- a/root/etc/services.d/radarr/run
+++ b/root/etc/services.d/radarr/run
@@ -4,8 +4,6 @@ UMASK_SET=${UMASK_SET:-022}
 
 umask "$UMASK_SET"
 
-cd /opt/radarr || exit
-
 exec \
-	s6-setuidgid abc mono --debug Radarr.exe \
+	s6-setuidgid abc /opt/radarr/Radarr \
 	-nobrowser -data=/config