X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/0c6d79528ac651ef064173327d769ba7a2b338ab..5303941021034f9b6272d5c1512096e125aece1e:/rsync.yo

diff --git a/rsync.yo b/rsync.yo
index 05d18936..2a266d74 100644
--- a/rsync.yo
+++ b/rsync.yo
@@ -1004,7 +1004,12 @@ using bf(--delete-after), and it used to be non-functional unless the
 bf(--recursive) option was also enabled.
 
 dit(bf(--max-delete=NUM)) This tells rsync not to delete more than NUM
-files or directories (NUM must be non-zero).
+files or directories.
+Beginning with version 3.0.0, you may specify bf(--max-delete=0) to
+be warned about any extraneous files in the destination, but be very
+careful to never specify a 0 value to an older rsync client, or the
+option will be silently ignored.  (A 3.0.0 client will die with an
+error if the remote rsync is not new enough to handle the situation.)
 This is useful when mirroring very large trees to prevent disasters.
 
 dit(bf(--max-size=SIZE)) This tells rsync to avoid transferring any