1 files changed, 11 insertions, 0 deletions
diff --git a/tmux.1 b/tmux.1
index 9319587a..16120e00 100644
--- a/tmux.1
+++ b/tmux.1
@@ -5910,6 +5910,17 @@ or an error occurred.
 If present,
 .Ar reason
 describes why the client exited.
+.It Ic %extended-output Ar pane-id Ar age Ar ... : Ar value
+New form of
+.Ic %output
+sent when the
+.Ar pause-after
+flag is set.
+.Ar age
+is the time in milliseconds for which tmux had buffered the output before it was sent.
+Any subsequent arguments up until a single
+.Ql \&:
+are for future use and should be ignored.
 .It Ic %layout-change Ar window-id Ar window-layout Ar window-visible-layout Ar window-flags
 The layout of a window with ID
 .Ar window-id