kicad-unstable 0 -> 1
attrpath: kicad-unstable
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/wfp13id9d4r939wqzx8zhffa6dydm3gi-packages.json.drv
building '/nix/store/wfp13id9d4r939wqzx8zhffa6dydm3gi-packages.json.drv'...

Going to be running update for following packages:
 - kicad-unstable-e0d4cf2d5b

Press Enter key to continue...
Running update for:
 - kicad-unstable-e0d4cf2d5b: UPDATING ...
 - kicad-unstable-e0d4cf2d5b: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/applications/science/electronics/kicad/versions.nix b/pkgs/applications/science/electronics/kicad/versions.nix
index ffab1ba75121..6e91eb4b23e4 100644
--- a/pkgs/applications/science/electronics/kicad/versions.nix
+++ b/pkgs/applications/science/electronics/kicad/versions.nix
@@ -47,23 +47,23 @@
   };
   "kicad-unstable" = {
     kicadVersion = {
-      version =			"2023-08-15";
+      version =			"2024-01-21";
       src = {
-        rev =			"e0d4cf2d5b023a7e5b70d854452376aa3510acd8";
-        sha256 =		"0666j4q3vz24smcjw9m4ib3ca2dqiqgx2amhv7ys4rzqb6v2pvn2";
+        rev =			"ebb69bdfa42a2753f1bb1fc27aee3ea312cb6182";
+        sha256 =		"1rmy51jqwn7xqsd7rs75ji3vy66vxm7chqzji7adrq3zr25ylgdh";
       };
     };
     libVersion = {
-      version =			"2023-08-15";
+      version =			"2024-01-21";
       libSources = {
-        symbols.rev =		"06d20a4b9f7e5375329194d141b096dcdcb7518a";
-        symbols.sha256 =	"1wr754m4ykidds3i14gqhvyrj3mbkchp2hkfnr0rjsdaqf4zmqdf";
-        templates.rev =		"867eef383a0f61015cb69677d5c632d78a2ea01a";
-        templates.sha256 =	"1qi20mrsfn4fxmr1fyphmil2i9p2nzmwk5rlfchc5aq2194nj3lq";
-        footprints.rev =	"5d2ac73ae72bfe8b8ee9eeb081a7851b2ca84c24";
-        footprints.sha256 =	"1qg016ysf0ddm3bd5bkjawlrc0z4r3zhmdjkqkwaaaydnpwp23qz";
-        packages3d.rev =	"f1dae9f95e59216f3b974f585e5b420db853da9e";
-        packages3d.sha256 =	"0ciri6lhnh0w9i00z167snj5acnjndi1rgmyls08p45zj4rma8y2";
+        symbols.rev =		"500b1a86e2aafe59be75b981a7780c97719b36d0";
+        symbols.sha256 =	"18qqldx62mxkla3dsx6i7qqznkjxx2z6rhd2wcfnisvsrsc6lhff";
+        templates.rev =		"ff6e3193e6ff6029f65e7cce8ab39fafeafecdd6";
+        templates.sha256 =	"0mykfwwik7472i4r0isc5szj3dnmvd0538p0vlmzh4rcgj3pj3vm";
+        footprints.rev =	"b1e3c47f4f7bf3cae224409af59ac9ff17b107ca";
+        footprints.sha256 =	"0sqzjw6xlyrlxz24zgdvnjarv441prwjh8gd70ng1s0albg5vliy";
+        packages3d.rev =	"ab31fc8d1c3c43573b3146cdfa952c9aaa195590";
+        packages3d.sha256 =	"0y02k8n60n0lbk2axx3zs7zpdlyzb1dl3hrr6bq44zzj5s4khr9g";
       };
     };
   };

No auto update branch exists
Old version e0d4cf2d5b" not present in master derivation file with contents: # This file was generated by update.sh

{
  "kicad" = {
    kicadVersion = {
      version =			"7.0.9";
      src = {
        rev =			"1c81053cc40579ecd5febef1aeb1164008039deb";
        sha256 =		"1hq9rba1gcks14zwbr8nbicpsil4imslgfch6ll33fhizbks3fq4";
      };
    };
    libVersion = {
      version =			"7.0.9";
      libSources = {
        symbols.rev =		"1ed4ed6c0696e50165b8e3d7978136a05db2d7c3";
        symbols.sha256 =	"0ynsnjq3z126cjkgm1fjbjvdvpc0walnr42ya9dv46l27kxy2j77";
        templates.rev =		"856bacc6782ea8c9bcb5a49a2d438a4689e0579b";
        templates.sha256 =	"11582ldnv7hkljmhaym83962kixq1hjbfmdrn5laq7l4jk3l19vh";
        footprints.rev =	"fe7b9aec7635caabbaa85fa8a15b85038394099b";
        footprints.sha256 =	"16a4c2xs4i8wbm01a901yxabxk0qdsjkzlccfawddv82bkh4b87h";
        packages3d.rev =	"5bc66f3c0f6dabf09df6c5188b8d955968500eab";
        packages3d.sha256 =	"1cly28vc07i54v487zbb8d1h70nrd3naxvq146b0xnbrjwnd2q28";
      };
    };
  };
  "kicad-testing" = {
    kicadVersion = {
      version =			"7.0-2024-01-07";
      src = {
        rev =			"ace6439758f8d211001235f36f02a60488337e41";
        sha256 =		"0z4p2srz9rld7mq6k2y5fipz8mgsdhh2506wam4388nklzzkrccr";
      };
    };
    libVersion = {
      version =			"7.0-2024-01-07";
      libSources = {
        symbols.rev =		"eedf6c9ddac2816023e817d4dc91032f9d7390b9";
        symbols.sha256 =	"0nlgmxf9z1vf4g350dfkxql1dawgmw275wqxkgszsfxmhdfpmi9v";
        templates.rev =		"9ce98cc45f3778e05c404edebf0f98de5c247ffe";
        templates.sha256 =	"0mykfwwik7472i4r0isc5szj3dnmvd0538p0vlmzh4rcgj3pj3vm";
        footprints.rev =	"7061fc9847ecc1b838e60dc6826db534028494f6";
        footprints.sha256 =	"1az6fzh1lma71mj12bc4bblnmzjayrxhkb8w9rjvlhvvgv33cdmy";
        packages3d.rev =	"d7345b34daaa23acf0d4506ed937fb424b5b18cd";
        packages3d.sha256 =	"0xzyi4mgyifwc6dppdzh6jq294mkj0a71cwkqw2ymz1kfbksw626";
      };
    };
  };
  "kicad-unstable" = {
    kicadVersion = {
      version =			"2023-08-15";
      src = {
        rev =			"e0d4cf2d5b023a7e5b70d854452376aa3510acd8";
        sha256 =		"0666j4q3vz24smcjw9m4ib3ca2dqiqgx2amhv7ys4rzqb6v2pvn2";
      };
    };
    libVersion = {
      version =			"2023-08-15";
      libSources = {
        symbols.rev =		"06d20a4b9f7e5375329194d141b096dcdcb7518a";
        symbols.sha256 =	"1wr754m4ykidds3i14gqhvyrj3mbkchp2hkfnr0rjsdaqf4zmqdf";
        templates.rev =		"867eef383a0f61015cb69677d5c632d78a2ea01a";
        templates.sha256 =	"1qi20mrsfn4fxmr1fyphmil2i9p2nzmwk5rlfchc5aq2194nj3lq";
        footprints.rev =	"5d2ac73ae72bfe8b8ee9eeb081a7851b2ca84c24";
        footprints.sha256 =	"1qg016ysf0ddm3bd5bkjawlrc0z4r3zhmdjkqkwaaaydnpwp23qz";
        packages3d.rev =	"f1dae9f95e59216f3b974f585e5b420db853da9e";
        packages3d.sha256 =	"0ciri6lhnh0w9i00z167snj5acnjndi1rgmyls08p45zj4rma8y2";
      };
    };
  };
}