Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: fltk_1_4 1.4.4 -> 1.4.5 https://github.com/fltk/fltk/releases
attrpath: fltk_1_4
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/5djcpvcqfzngxxhqd8nc3kr0z7vnl8ln-packages.json.drv
building '/nix/store/5djcpvcqfzngxxhqd8nc3kr0z7vnl8ln-packages.json.drv'...

Going to be running update for following packages:
 - fltk-1.4.4

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - fltk-1.4.4: UPDATING ...
 - fltk-1.4.4: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/fl/fltk_1_4/package.nix b/pkgs/by-name/fl/fltk_1_4/package.nix
index e338af205131..902733258a71 100644
--- a/pkgs/by-name/fl/fltk_1_4/package.nix
+++ b/pkgs/by-name/fl/fltk_1_4/package.nix
@@ -56,13 +56,13 @@ assert withWayland -> withCairo;
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "fltk";
-  version = "1.4.4";
+  version = "1.4.5";
 
   src = fetchFromGitHub {
     owner = "fltk";
     repo = "fltk";
     rev = "release-${finalAttrs.version}";
-    hash = "sha256-xba9uiiwQhM4a3Rf4PoGshY3mUKZrcsm+Iv7qnE2sEA=";
+    hash = "sha256-8Go/UNuZ1LEn8BniAyBbAPk7jdvSs5QvXxin9LAFvhU=";
   };
 
   outputs = [ "out" ] ++ lib.optional withExamples "bin" ++ lib.optional withDocs "doc";

No auto update branch exists
There might already be an open PR for this update:
- fltk_1_4-minimal: 1.4.4 -> 1.4.5
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/513445"