diff --git a/administrator/components/com_patchtester/language/da-DK/com_patchtester.ini b/administrator/components/com_patchtester/language/da-DK/com_patchtester.ini
index 700c4bb..2e175be 100644
--- a/administrator/components/com_patchtester/language/da-DK/com_patchtester.ini
+++ b/administrator/components/com_patchtester/language/da-DK/com_patchtester.ini
@@ -4,6 +4,7 @@
 ; Note : All ini files need to be saved as UTF-8
 
 COM_PATCHTESTER="Joomla! fejlretnings testværktøj"
+COM_PATCHTESTER_40_WARNING="While Joomla! 4.0 is in development, using the patch tester is considered experimental since breaking changes may be merged into Joomla, including the code contained in a patch."
 COM_PATCHTESTER_API_LIMIT_ACTION="GitHub API grænsen er nået for denne ressource. Kunne ikke forbinde til GitHub for at udføre den anmodede handling. Grænsen vil blive nulstillet om %s"
 COM_PATCHTESTER_API_LIMIT_LIST="GitHub API grænsen er nået for denne ressource. Kunne ikke forbinde til GitHub for at hente opdaterede data. Grænsen vil blive nulstillet om %s"
 COM_PATCHTESTER_APPLIED="Tilføjet"