On Wed, May 11, 2022 at 01:47:30AM +0000, Philippe Blain via GitGitGadget wrote:

+We can note a few things:
+
+- Each commit is sent as a separate email, with the commit message title as
+  subject, prefixed with "[PATCH _i_/_n_]" for the _i_-th commit of an
+  _n_-commit series.
+- Each patch is sent as a reply to an introductory email called the _cover
+  letter_ of the series, prefixed "[PATCH 0/_n_]".
+- Subsequent iterations of the patch series are labelled "[PATCH v2]", "[PATCH
+  v3]", etc. and sent with a new cover letter, itself a reply to the cover
+  letter of the previous iteration (more on that below).
+
+At this point the tutorial diverges, in order to demonstrate two
 different methods of formatting your patchset and getting it reviewed.

In case of single-patch series submissions, the anatomy is simple: first
the email subject is commit message title prefixed with "[PATCH]" or
"[PATCH v_n_]" (in case of n-th iteration), then commit message and the
actual diff.

Regarding n-th iteration series, sometimes it is desirable to break the
threading so that the original thread (of previous iterations) doesn't
get too long, by sending the series as completely new thread. Some
contributors (including myself) prefer that way. In that case, the link
to previous iteration is provided to aid reviewers.

-- 
An old man doll... just what I always wanted! - Clara