anchor.diff:  
     hal-flash = throw "hal-flash has been removed as Adobe Flash Player is now deprecated"; # Added 2021-02-07
     hawkthorne = throw "hawkthorne has been removed because it depended on a broken version of love"; # Added 2022-01-15
  +  heapster = throw "Heapster is now retired. See https://github.com/kubernetes-retired/heapster/blob/master/docs/deprecation.md"; # Added 2022-04-05
     heimdalFull = throw "'heimdalFull' has been renamed to/replaced by 'heimdal'"; # Converted to throw 2022-02-22
     heme = throw "heme has been removed: upstream is gone"; # added 2022-02-06
     hepmc = hepmc2; # Added 2019-08-05
  
positive.code:   aucdtect = throw "aucdtect: Upstream no longer provides download urls"; # Added 2020-12-26
    avldrums-lv2 = x42-avldrums; # Added 2020-03-29
    avxsynth = throw "avxsynth was removed because it was broken"; # Added 2021-05-18
    azureus = throw "azureus is now known as vuze and the version in nixpkgs was really outdated"; # Added 2021-08-02
  
    ### B ###
  
negative.code:   intecture-agent = throw "intecture-agent has been removed, because it was no longer maintained upstream"; # added 2021-12-15
    intecture-auth = throw "intecture-auth has been removed, because it was no longer maintained upstream"; # added 2021-12-15
    intecture-cli = throw "intecture-cli has been removed, because it was no longer maintained upstream"; # added 2021-12-15
    interfacer = throw "interfacer is deprecated and archived by upstream"; # Added 2022-04-05
    inter-ui = inter; # Added 2021-03-27
    iops = throw "iops was removed: upstream is gone"; # Added 2022-02-06
    iproute = iproute2; # moved from top-level 2021-03-14
  