Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: box64 0.3.8 -> 0.4.0 https://github.com/ptitSeb/box64/releases
attrpath: box64
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/90hc9zalcazbl32v16160v9gcc4h0x6h-packages.json.drv
building '/nix/store/90hc9zalcazbl32v16160v9gcc4h0x6h-packages.json.drv'...

Going to be running update for following packages:
 - box64-0.3.8

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - box64-0.3.8: UPDATING ...
 - box64-0.3.8: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/applications/emulators/box64/default.nix b/pkgs/applications/emulators/box64/default.nix
index 1960fc844bcd..928b816078df 100644
--- a/pkgs/applications/emulators/box64/default.nix
+++ b/pkgs/applications/emulators/box64/default.nix
@@ -21,13 +21,13 @@ assert
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "box64";
-  version = "0.3.8";
+  version = "0.4.1-1";
 
   src = fetchFromGitHub {
     owner = "ptitSeb";
     repo = "box64";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-PVzv1790UhWbqLmw/93+mU3Gw8lQek7NBls4LXks4wQ=";
+    hash = "sha256-evCKub1X43YfBk1ywsfoOe4KoAwABEYVS6t+0l+IdfE=";
   };
 
   # Setting cpu doesn't seem to work (or maybe isn't enough / gets overwritten by the wrapper's arch flag?), errors about unsupported instructions for target

No auto update branch exists
There might already be an open PR for this update:
- box64: 0.3.8 -> 0.4.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/493170"