Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: dart-bin 0 -> 1
attrpath: dart-bin
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/4jc62iqm831if6b83gbi73xprd4iql0c-packages.json.drv
building '/nix/store/4jc62iqm831if6b83gbi73xprd4iql0c-packages.json.drv'...

Going to be running update for following packages:
 - dart-3.11.4

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - dart-3.11.4: UPDATING ...
 - dart-3.11.4: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/compilers/dart/default.nix b/pkgs/development/compilers/dart/default.nix
index ae4457394304..262f2bd0065b 100644
--- a/pkgs/development/compilers/dart/default.nix
+++ b/pkgs/development/compilers/dart/default.nix
@@ -11,7 +11,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "dart";
-  version = "3.11.4";
+  version = "3.11.5";
 
   src =
     let
@@ -25,10 +25,10 @@ stdenv.mkDerivation (finalAttrs: {
         aarch64-darwin = "macos-arm64";
       };
       hash = selectSystem {
-        x86_64-linux = "sha256-UtYvBbAHzLcRfPQcGb7aHIfBRLJ+pgCxa0ycjqj8j9Q=";
-        aarch64-linux = "sha256-w1um8N4fXrvyNQZhK//DR8e6lMOkx1EQyrEVeJIWbTw=";
-        x86_64-darwin = "sha256-GHTjTHJmbIPfsAbF4AmxjDETSw9YD04/6lGecoe1xrA=";
-        aarch64-darwin = "sha256-DwyZtAeZLuaX2MFVPzhERiFeX45wI9sTc4Y2SVopRE8=";
+        x86_64-linux = "sha256-V/OrWsJIgwYLH/ErzaxHLtdlY+xzZOiPim1B5PDbB18=";
+        aarch64-linux = "sha256-UOmrpY+HF5Q4VHeKcwdOY6gMQgVDVdNeJzKgzAgkovs=";
+        x86_64-darwin = "sha256-lN5qGAScNUAm9UIkRrMRz8lrUdttMW7rfKRv8UwLiqo=";
+        aarch64-darwin = "sha256-P9A96zsMeJepiWw/Xz3aSp/mPEOxQ2Tuko7G2zSL4Kw=";
       };
     in
     fetchurl {

No auto update branch exists
There might already be an open PR for this update:
- dart: 3.11.4 -> 3.11.5
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/510760"