post_install() {
    echo 'NOTE: Yara rules update is disabled due to reports of clamd crashing.'
    echo 'NOTE: Remove /var/lib/clamav/*.yar files if clamd crashes.'
    echo 'NOTE: You can still enable it by setting: enable_yararules="yes"'
    echo 'NOTE:'
    echo 'NOTE: Use /etc/clamav-unofficial-sigs/user.conf for your customization.'
    echo 'NOTE:'
    echo 'NOTE: Enable clamav-unofficial-sigs.timer for regular automatic updates.'
}

post_upgrade() {
    post_install
}