case 'xenial':
matchStrs = [
~/^refs\/tags\/(Ubuntu-4\.4\.0-\d{1,3}?\.[\d]+)$/,
~/^refs\/tags\/(Ubuntu-lts-4\.8\.0-.*_16\.04\.\d+)$/,
~/^refs\/tags\/(Ubuntu-lts-4\.10\.0-.*_16\.04\.\d+)$/,
case 'xenial':
matchStrs = [
~/^refs\/tags\/(Ubuntu-4\.4\.0-\d{1,3}?\.[\d]+)$/,
~/^refs\/tags\/(Ubuntu-lts-4\.8\.0-.*_16\.04\.\d+)$/,
~/^refs\/tags\/(Ubuntu-lts-4\.10\.0-.*_16\.04\.\d+)$/,