diff --git a/yeps/yep-302.md b/yeps/yep-302.md
index b85d646..bd486a1 100644
--- a/yeps/yep-302.md
+++ b/yeps/yep-302.md
@@ -7,6 +7,7 @@ tags: trait
 post-history: 2020-04-22
               2020-07-14
               2021-03-17
+              2022-11-20
 ---
 
 # Abstract
@@ -72,6 +73,12 @@ response: {'type': 'map', 'values': ['null', 'string']}
 
 Get current channel units.
 
+## message: get_channel_signs
+
+response: {'type': 'map', 'values': 'boolean'}
+
+Get current channel signs. True indicates channel has negative and positive valued signals.
+
 # Copyright
 
 This document is placed in the public domain or under the CC0-1.0-Universal license, whichever is more permissive.