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1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/lei-add-external.pod b/Documentation/lei-add-external.pod
index 9c8bde0f..1ab65a16 100644
--- a/Documentation/lei-add-external.pod
+++ b/Documentation/lei-add-external.pod
@@ -30,6 +30,21 @@ Default: 0
 Create C<LOCATION> by mirroring the public-inbox at C<URL>.
+=item --epoch=RANGE
+Restrict clones of L<public-inbox-v2-format(5)> inboxes to the
+given range of epochs.  The range may be a single non-negative
+integer or a (possibly open-ended) C<LOW..HIGH> range of
+non-negative integers.  C<~> may be prefixed to either (or both)
+integer values to represent the offset from the maximum possible
+For example, C<--epoch=~0> alone clones only the latest epoch,
+C<--epoch=~2..> clones the three latest epochs.
+Default: C<0..~0> or C<0..> or C<..~0>
+(all epochs, all three examples are equivalent)
 =item -v
 =item --verbose