From 114e77e59b12cc8506eee35bf2a04c05fb026ffe Mon Sep 17 00:00:00 2001
From: Tyler Treat <ttreat31@gmail.com>
Date: Thu, 27 Feb 2020 16:33:58 -0700
Subject: [PATCH] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 233f61c..4733e07 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,8 @@ bumped if the envelope format changes or if the message encoding changes in a
 non-backwards-compatible way. Adding fields to the messages should not require
 a version bump.
 
+Currently, the only supported protocol version is v0, i.e. `0x00`.
+
 #### HeaderLen [1 byte]
 
 The header length is the offset of the payload. This is included primarily for