Rebase to 3.20

Dockerfile.aarch64

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.19
+FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.20
 
 # set version label
 ARG BUILD_DATE
@@ -31,6 +31,7 @@ RUN \
     /tmp/radarr.tar.gz -C \
     /app/radarr/bin --strip-components=1 && \
   echo -e "UpdateMethod=docker\nBranch=${RADARR_BRANCH}\nPackageVersion=${VERSION}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/radarr/package_info && \
+  printf "Linuxserver.io version: ${VERSION}\nBuild-date: ${BUILD_DATE}" > /build_version && \
   echo "**** cleanup ****" && \
   rm -rf \
     /app/radarr/bin/Radarr.Update \