From 505c6bc826f79aec8b2b15b029abd7c087e85c7a Mon Sep 17 00:00:00 2001
From: Matthias Seitz <matthias.seitz@outlook.de>
Date: Thu, 12 Oct 2023 13:43:43 +0200
Subject: [PATCH] docs: add note about ignore version field (#4994)

---
 crates/net/discv4/src/proto.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/crates/net/discv4/src/proto.rs b/crates/net/discv4/src/proto.rs
index a707174c5..998ddd869 100644
--- a/crates/net/discv4/src/proto.rs
+++ b/crates/net/discv4/src/proto.rs
@@ -394,7 +394,11 @@ impl Decodable for Ping {
             return Err(RlpError::UnexpectedString)
         }
         let started_len = b.len();
+
+        // > Implementations should ignore any mismatches in version:
+        // <https://github.com/ethereum/devp2p/blob/master/discv4.md#ping-packet-0x01>
         let _version = u32::decode(b)?;
+
         let mut this = Self {
             from: Decodable::decode(b)?,
             to: Decodable::decode(b)?,