Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: calibre 0 -> 1
attrpath: calibre
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[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/z66ia55p89kgk33q5jlxcg6xx81k9adi-packages.json.drv
building '/nix/store/z66ia55p89kgk33q5jlxcg6xx81k9adi-packages.json.drv'...
structuredAttrs is enabled

Going to be running update for following packages:
 - calibre-9.14.0

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - calibre-9.14.0: UPDATING ...
 - calibre-9.14.0: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/ca/calibre/package.nix b/pkgs/by-name/ca/calibre/package.nix
index 50a18774a3d3..31a2840cadf7 100644
--- a/pkgs/by-name/ca/calibre/package.nix
+++ b/pkgs/by-name/ca/calibre/package.nix
@@ -41,14 +41,14 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "calibre";
-  version = "9.14.0";
+  version = "9.15.0";
 
   __structuredAttrs = true;
   strictDeps = true;
 
   src = fetchurl {
     url = "https://download.calibre-ebook.com/${finalAttrs.version}/calibre-${finalAttrs.version}.tar.xz";
-    hash = "sha256-0bwkAksJQkKcYn6cXQsl1R35wa8eHY3KPlcvA7GUxWE=";
+    hash = "sha256-nwLTbeyvRrF2ob73Q0kjJQi8wrSwbRZiu9H9QmxX1Vk=";
   };
 
   patches =

No auto update branch exists
There might already be an open PR for this update:
- calibre: 9.14.0 -> 9.15.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/566874"