anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "libdeltachat";
  -  version = "1.70.0";
  +  version = "1.71.0";
   
     src = fetchFromGitHub {
       owner = "deltachat";
       repo = "deltachat-core-rust";
       rev = version;
  -    hash = "sha256-702XhFWvFG+g++3X97sy6C5DMNWogv1Xbr8QPR8QyLo=";
  +    hash = "sha256-zpjg7R6/fmDfvFTsooak3B+gwbCadwxiQfbKREqEXY8=";
     };
   
     patches = [
  
positive.code:   cargoDeps = rustPlatform.fetchCargoTarball {
      inherit src;
      name = "${pname}-${version}";
      hash = "sha256-MiSGJMXe8vouv4XEHXq274FHEvBMtd7IX6DyNJIWYeU=";
    };
  
    nativeBuildInputs = [
  
negative.code: , perl
  , pkg-config
  , rustPlatform
  , sqlcipher
  , sqlite
  , fixDarwinDylibNames
  , CoreFoundation
  