From 6f884b4d0575d7fd0b8097ade3cab932a99a121c Mon Sep 17 00:00:00 2001
From: scito <info@scito.ch>
Date: Sun, 7 Feb 2021 20:01:56 +0100
Subject: [PATCH] add "known to work" in readme

---
 README.md | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 81f34e5..a53520a 100644
--- a/README.md
+++ b/README.md
@@ -13,10 +13,15 @@ Extract two-factor authentication (2FA, TFA) secret keys from export QR codes of
 
 ## Requirement
 
-The protobuf package of Google for proto3 is required for running this script.
+The protobuf package of Google for proto3 is required for running this script. protobuf >= 3.14 is recommended.
 
     pip install protobuf
 
+Known to work with
+
+* Python 3.6.12 and protobuf 3.14.0
+* Python 3.8.5 and protobuf 3.14.0
+
 ### Optional
 
 For printing QR codes, the qrcode module is required