in src/main/scala/com/gu/liveappversions/ios/BuildOutput.scala [17:22]
final def apply(beta: LiveAppBeta): Json = Json.obj(
("version", Json.fromString(beta.version)),
("uploadedDate", Json.fromString(beta.uploadedDate.toString)))
}
def findPreviousThreeBetaVersions(betas: List[LiveAppBeta]): Try[List[LiveAppBeta]] = {