python312Packages.catboost 1.2.2 -> 1.2.3 https://github.com/catboost/catboost/releases
attrpath: python312Packages.catboost
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[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/n27sc9m0041dh9cpsbspa2axzcswvrq9-packages.json.drv
building '/nix/store/n27sc9m0041dh9cpsbspa2axzcswvrq9-packages.json.drv'...

Going to be running update for following packages:
 - python3.12-catboost-1.2.2

Press Enter key to continue...
Running update for:
 - python3.12-catboost-1.2.2: UPDATING ...
 - python3.12-catboost-1.2.2: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/libraries/catboost/default.nix b/pkgs/development/libraries/catboost/default.nix
index fc18eef2ca89..7a0cb9122032 100644
--- a/pkgs/development/libraries/catboost/default.nix
+++ b/pkgs/development/libraries/catboost/default.nix
@@ -18,13 +18,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "catboost";
-  version = "1.2.2";
+  version = "1.2.3";
 
   src = fetchFromGitHub {
     owner = "catboost";
     repo = "catboost";
-    rev = "refs/tags/v${finalAttrs.version}";
-    hash = "sha256-A1zCIqPOW21dHKBQHRtS+/sstZ2o6F8k71lmJFGn0+g=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-wn9STnpqX3zmdxPmMYAz9JPdg13Goux76CMaCiqohk8=";
   };
 
   patches = [

The derivation has no 'version' attribute, so do not know how to figure out the version while doing an updateScript update