diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 7fbd060d60470..4cc2fab58dea4 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -156,6 +156,9 @@ route/max_size - INTEGER
 	From linux kernel 3.6 onwards, this is deprecated for ipv4
 	as route cache is no longer used.
 
+	From linux kernel 6.3 onwards, this is deprecated for ipv6
+	as garbage collection manages cached route entries.
+
 neigh/default/gc_thresh1 - INTEGER
 	Minimum number of entries to keep.  Garbage collector will not
 	purge entries if there are fewer than this number.