Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: fb303 2025.10.13.00 -> 2026.01.05.00 https://repology.org/project/fb303/versions
attrpath: fb303
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/bm7qm15ng92mxa7l12cqaw5msb1j5hbq-packages.json.drv
building '/nix/store/bm7qm15ng92mxa7l12cqaw5msb1j5hbq-packages.json.drv'...

Going to be running update for following packages:
 - fb303-2025.10.13.00

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - fb303-2025.10.13.00: UPDATING ...
 - fb303-2025.10.13.00: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/fb/fb303/package.nix b/pkgs/by-name/fb/fb303/package.nix
index 8e607283bd85..7f6f1fdbef0e 100644
--- a/pkgs/by-name/fb/fb303/package.nix
+++ b/pkgs/by-name/fb/fb303/package.nix
@@ -19,7 +19,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "fb303";
-  version = "2025.10.13.00";
+  version = "2026.01.05.00";
 
   outputs = [
     "out"
@@ -30,7 +30,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "facebook";
     repo = "fb303";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-IF3fQY8QfDBo8DoLFIFuZD8OgrrJfXLXDgFcsD1CmaY=";
+    hash = "sha256-d36fUdrARRLzZW0J0U3w1iZeo0lMy83oTUZh2O9nypw=";
   };
 
   patches = [

No auto update branch exists
There might already be an open PR for this update:
- folly: 2025.10.13.00 -> 2026.01.05.00
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/477363"