commit - d7eb343ea03e404ee2ca086e570216ee824598d4
commit + dffe5a9d6049609cfa02f44d978feef295c215d8
blob - 9a692ea6cd273a4a6ec4c460ff6d9c0dc89e33d2
blob + d26b8403ef82905b494b9c64d6c7daf27554c1c5
--- doc/Capabilities.txt
+++ doc/Capabilities.txt
@@ -19,5 +19,10 @@ ngIRCd implements the "IRC Client Capabilities Extensi
 I. Supported Capabilities
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-None. At the moment, ngIRCd supports the "CAP" command and its sub-commands
-but offers no capabilities that could be requested by a client.
+* "multi-prefix"
+
+   When requested, the multi-prefix client capability will cause the IRC
+   server to send all possible prefixes which apply to a user in NAMES and
+   WHO output.
+
+   See <http://ircv3.atheme.org/extensions/multi-prefix-3.1>.