net: mptcp: force using MPTCP with GODEBUG

[gostls13.git] / doc / godebug.md

diff --git a/doc/godebug.md b/doc/godebug.md
index 43dbcd645a6b66e7cd40e111019da52419a29360..7a6d70e48782ad958135181dc64c551766979e2e 100644 (file)
--- a/doc/godebug.md
+++ b/doc/godebug.md
@@ -142,6 +142,10 @@ forms, controlled by the
 respectively.
 This behavior was backported to Go 1.19.8+ and Go 1.20.3+.
 
+Go 1.21 adds the support of Multipath TCP but it is only used if the application
+explicitly asked for it. This behavior can be controlled by the
+[`multipathtcp` setting](/pkg/net#Dialer.SetMultipathTCP).
+
 There is no plan to remove any of these settings.
 
 ### Go 1.20