Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: betterdisplay 4.0.4 -> 4.2.3 https://github.com/waydabber/BetterDisplay/releases
attrpath: betterdisplay
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/4klipbyhif7fi48wwrlyfv3xp2kgxzip-packages.json.drv
building '/nix/store/4klipbyhif7fi48wwrlyfv3xp2kgxzip-packages.json.drv'...

Going to be running update for following packages:
 - betterdisplay-4.0.4

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - betterdisplay-4.0.4: UPDATING ...
 - betterdisplay-4.0.4: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/be/betterdisplay/package.nix b/pkgs/by-name/be/betterdisplay/package.nix
index 275f7652af3c..ac5cb24922ff 100644
--- a/pkgs/by-name/be/betterdisplay/package.nix
+++ b/pkgs/by-name/be/betterdisplay/package.nix
@@ -11,11 +11,11 @@
 
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "betterdisplay";
-  version = "4.0.4";
+  version = "4.2.3";
 
   src = fetchurl {
     url = "https://github.com/waydabber/BetterDisplay/releases/download/v${finalAttrs.version}/BetterDisplay-v${finalAttrs.version}.dmg";
-    hash = "sha256-njk1epuekOiBN8Exkxs9J2OHVP4xu4on42F+TPlW75M=";
+    hash = "sha256-keJkdMDO213DUl2LAVqtx1joAmcUpU336Tj8AldCoKo=";
   };
 
   dontPatch = true;

No auto update branch exists
There might already be an open PR for this update:
- betterdisplay: 4.0.4 -> 4.2.3
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/500299"