in app/prism/Recommendations.scala [68:86]
def isObsoleteUbuntu(ubuntuAmi: AMI): Boolean = {
val DistExtractor = ".*/ubuntu-(\\w+?)-(\\d{2}.\\d{2})-.*".r
ubuntuAmi.name.fold(false) {
case DistExtractor(distName, distNumber) =>
List(
"15.04",
"14.10",
"13.10",
"13.04",
"12.10",
"11.10",
"11.04",
"10.10",
"10.04"
).contains(distNumber)
case _ =>
false
}
}