Add a note for *Command template imports for < 2.6.0

fixes #13297

diff --git a/doc/9-object-types.md b/doc/9-object-types.md
index fbcd8e1ce9279af8186d9591cb26b4a5bda48839..98e00c5569afcfc2c5ebc7f1647e6a01302425ce 100644 (file)
--- a/doc/9-object-types.md
+++ b/doc/9-object-types.md
@@ -81,6 +81,10 @@ chapter.
 A check command definition. Additional default command custom attributes can be
 defined here.
 
+> **Note**
+>
+> Icinga 2 versions < 2.6.0 require the import of the [plugin-check-command](10-icinga-template-library.md#itl-plugin-check-command) template.
+
 Example:
 
     object CheckCommand "check_http" {
@@ -436,6 +440,10 @@ Endpoint objects cannot currently be created with the API.
 
 An event command definition.
 
+> **Note**
+>
+> Icinga 2 versions < 2.6.0 require the import of the [plugin-event-command](10-icinga-template-library.md#itl-plugin-event-command) template.
+
 Example:
 
     object EventCommand "restart-httpd-event" {
@@ -1080,6 +1088,10 @@ Runtime Attributes:
 
 A notification command definition.
 
+> **Note**
+>
+> Icinga 2 versions < 2.6.0 require the import of the [plugin-notification-command](10-icinga-template-library.md#itl-plugin-notification-command) template.
+
 Example:
 
     object NotificationCommand "mail-service-notification" {