{
  "requires": ["openssl", "ncurses"],
  "sources": {
    "erlang": {
      "kind": "url_extract",
      "url": "https://downloads.mesosphere.com/pkgpanda-artifact-cache/otp_src_18.1.tar.gz",
      "sha1": "719962d2558e78fa3cb3768b65505df78d501388"
    }
  }
}

{
  "requires": ["openssl", "ncurses"],
  "sources": {
    "erlang": {
      "kind": "url_extract",
      "url": "https://downloads.mesosphere.com/pkgpanda-artifact-cache/otp_src_18.3.tar.gz",
      "sha1": "efc229b75e0b0614a187efe858faf33027bcf3d1"
    }
  }
}

Upgrade from erlang 18.1 -> 18.3
Upgrade from erlang 18.1 -> 18.3
