slack 0 -> 1
attrpath: slack
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[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:
 - slack-4.37.101

Press Enter key to continue...
Running update for:
 - slack-4.37.101: UPDATING ...
 - slack-4.37.101: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/applications/networking/instant-messengers/slack/default.nix b/pkgs/applications/networking/instant-messengers/slack/default.nix
index 82494a442f93..2ee57c03a2ab 100644
--- a/pkgs/applications/networking/instant-messengers/slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack/default.nix
@@ -45,14 +45,14 @@ let
 
   pname = "slack";
 
-  x86_64-darwin-version = "4.37.101";
-  x86_64-darwin-sha256 = "03k4iv6y7y1z9ac7if35r3lk7kp7ic4aa4rdyzbrzihvpfb3nvdh";
+  x86_64-darwin-version = "4.38.115";
+  x86_64-darwin-sha256 = "0sd7aph79450024bingh1xxx5spqqci5sh91m6fi4g8xc9gmd1ap";
 
   x86_64-linux-version = "4.37.101";
   x86_64-linux-sha256 = "0vmaam0aiqcqmm8n3zrjmf012d6pdi0g1d08v1zhgx2rhl614ff9";
 
-  aarch64-darwin-version = "4.37.101";
-  aarch64-darwin-sha256 = "07qfqrq32sh5cw7vmq2x0s5zvkvcl7j1kkvdncg36fay9276f2pp";
+  aarch64-darwin-version = "4.38.115";
+  aarch64-darwin-sha256 = "0djaqm2fnjfyp6pmqbpy19h1l8155b6ip9v8ifp2kaa0v7pp7vgi";
 
   version = {
     x86_64-darwin = x86_64-darwin-version;

Package version did not change.