doc/upgrading: add note about knot-resolver-dbg

diff --git a/doc/upgrading.rst b/doc/upgrading.rst
index 874599126c597f6dd51d9ca1cd465b1fc54a3a33..01be9359523c3cec8b6cf47070df501e6c58e87c 100644 (file)
--- a/doc/upgrading.rst
+++ b/doc/upgrading.rst
@@ -7,6 +7,15 @@ We advise users to also read :ref:`release_notes` for respective versions.
 
 .. _upgrade-from-3-to-4:
 
+4.x to 4.2.1+
+=============
+
+Users
+-----
+
+* If you have previously installed ``knot-resolver-dbgsym`` package on Debian,
+  please remove it and install ``knot-resolver-dbg`` instead.
+
 3.x to 4.x
 ==========