svt-av1 0 -> 1
attrpath: svt-av1
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] 
Going to be running update for following packages:
 - svt-av1-1.8.0

Press Enter key to continue...
Running update for:
 - svt-av1-1.8.0: UPDATING ...
 - svt-av1-1.8.0: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/tools/video/svt-av1/default.nix b/pkgs/tools/video/svt-av1/default.nix
index d40047510f40..9c267b9c4434 100644
--- a/pkgs/tools/video/svt-av1/default.nix
+++ b/pkgs/tools/video/svt-av1/default.nix
@@ -8,13 +8,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "svt-av1";
-  version = "1.8.0";
+  version = "1.9.0-rc1";
 
   src = fetchFromGitLab {
     owner = "AOMediaCodec";
     repo = "SVT-AV1";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-JV65VuEPJBrADsGviBnE6EgZmbqJ4Z4qli6cAfUMmkw=";
+    hash = "sha256-Opns9+eArbmJbFf+xkB8Vt868z9ntT0pNDDErmymfYo=";
   };
 
   nativeBuildInputs = [

An auto update branch exists with message `svt-av1: 1.8.0 -> 1.9.0-rc1`. New version is 1.9.0-rc1.
An auto update branch exists with an equal or greater version