From 4f2e62d65fb1376a79b395778278cd992adbb293 Mon Sep 17 00:00:00 2001
From: Quentin Dufour <quentin@deuxfleurs.fr>
Date: Sun, 17 Apr 2022 17:14:09 +0200
Subject: [PATCH] add a warning

---
 doc/compile.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/doc/compile.md b/doc/compile.md
index 55d1ded..3d348ca 100644
--- a/doc/compile.md
+++ b/doc/compile.md
@@ -36,6 +36,10 @@ Check that these packages were activated automatically:
  - Network -> tcpdump
  - Utilities -> dbus
 
+*Note: do not use `defconfig` / diffconfig / etc. because they do not work when we upgrade 
+between major versions. They tend to create frankenstein builds. So really avoid them,
+we lost enough time with this feature.
+
 ```
 make download
 make -j $(nproc)