SubmittingPatches: document Based-on-patch-by trailer
This trailer comes up often enough and the use case is not fully covered by the other trailers here. For example, it is sometimes better to use this trailer instead of `Co-authored-by:`. Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Kristoffer Haugsbakk committed
Jun 19, 2026 at 07:44 UTC
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Documentation/SubmittingPatches
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@@ -465,6 +465,10 @@ These are the common trailers in use:
and found it to have the desired effect.
. `Co-authored-by:` is used to indicate that people exchanged drafts
of a patch before submitting it.
+. `Based-on-patch-by:` is used when someone else authored parts of the
+ patch that you are submitting. This might be relevant if someone sent
+ a patch to the mailing list with their sign-off. (Be mindful and ask
+ them to sign off on it if they did not.)
. `Helped-by:` is used to credit someone who suggested ideas for
changes without providing the precise changes in patch form.
. `Mentored-by:` is used to credit someone with helping develop a