healthchecks 0 -> 1
attrpath: healthchecks
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] this derivation will be built:
  /nix/store/wx52hhwnjzilfp40347v99ja4ib27gzf-packages.json.drv
building '/nix/store/wx52hhwnjzilfp40347v99ja4ib27gzf-packages.json.drv'...

Going to be running update for following packages:
 - healthchecks-2.10

Press Enter key to continue...
Running update for:
 - healthchecks-2.10: UPDATING ...
 - healthchecks-2.10: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/servers/web-apps/healthchecks/default.nix b/pkgs/servers/web-apps/healthchecks/default.nix
index 193452c4354c..4b14c6422002 100644
--- a/pkgs/servers/web-apps/healthchecks/default.nix
+++ b/pkgs/servers/web-apps/healthchecks/default.nix
@@ -13,14 +13,14 @@ let
 in
 py.pkgs.buildPythonApplication rec {
   pname = "healthchecks";
-  version = "2.10";
+  version = "3.1";
   format = "other";
 
   src = fetchFromGitHub {
     owner = "healthchecks";
     repo = pname;
     rev = "refs/tags/v${version}";
-    sha256 = "sha256-1x+pYMHaKgLFWcL1axOv/ok1ebs0I7Q+Q6htncmgJzU=";
+    sha256 = "sha256-T/0u1ZRte+6PJZgwndTJXe4I9b8x+JXQjQMohZ2xB2g=";
   };
 
   propagatedBuildInputs = with py.pkgs; [

No auto update branch exists
There might already be an open PR for this update:
- healthchecks: 2.10 -> 3.1
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/282912"