Update KCP proxy note for QUIC precedence

ZnqbuZ · fanyang89 · commit c470b9bbb7b2 · 2026-03-28T22:01:27.000+08:00
Clarify the precedence of QUIC and KCP proxies in the documentation.
diff --git a/en/guide/network/kcp-proxy.md b/en/guide/network/kcp-proxy.md
@@ -123,4 +123,6 @@ $ easytier-cli proxy
 QUIC and KCP proxies can be enabled simultaneously, and QUIC proxy takes precedence over KCP proxy.
 
 When both are enabled, KCP proxy will only take effect if the destination end doesn't allow QUIC input.
+
+For v2.5.0 and older, the priority is the inverse, i.e. KCP proxy takes precedence over QUIC proxy.
 :::
