Docs: Clarify on configuration and packages, thanks @dgoetz

refs #5604
refs #5301

diff --git a/doc/16-upgrading-icinga-2.md b/doc/16-upgrading-icinga-2.md
index d8e1ac77e957ef086e6610209a1de6da31eb25ac..c9ef6d088fd932d69e7ff105bbf40249ddcf4246 100644 (file)
--- a/doc/16-upgrading-icinga-2.md
+++ b/doc/16-upgrading-icinga-2.md
@@ -16,8 +16,9 @@ default [ApiListener configuration](06-distributed-monitoring.md#distributed-mon
 have been adjusted to these paths too.
 
 The config meta package `classicui-config` and the configuration files
-have been removed. You can keep old packages or manually configure
-this legacy interface.
+have been removed. You need to manually configure
+this legacy interface. Create a backup of the configuration
+before upgrading.
 
 ## Upgrading to v2.7 <a id="upgrading-to-2-7"></a>