tools: document that nixpkgs updates should not be backported

aduh95 · aduh95 · commit d09ba983987f · 2025-11-05T23:05:50.000+01:00
PR-URL: #60431 Reviewed-By: Chengzhong Wu <legendecas@gmail.com> Reviewed-By: Richard Lau <richard.lau@ibm.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
diff --git a/.github/workflows/tools.yml b/.github/workflows/tools.yml
@@ -193,7 +193,10 @@ jobs:
               rm temp-output
           - id: nixpkgs-unstable
             subsystem: tools
-            label: tools
+            # dont-land labels are there so we can guarantee released versions of
+            # Node.js can be built with the same env along the whole release line life &ndash;&nbsp;or
+            # at least we can detect and document necessary updates.
+            label: tools, dont-land-on-v20.x, dont-land-on-v22.x, dont-land-on-v24.x, dont-land-on-v25.x
             run: |
               ./tools/dep_updaters/update-nixpkgs-pin.sh > temp-output
               cat temp-output
