diff --git a/doc/NEWS.md b/doc/NEWS.md
index 7453916..fe014e9 100644
--- a/doc/NEWS.md
+++ b/doc/NEWS.md
@@ -1,6 +1,7 @@
 0.0.20230729-UNRELEASED
   * cleanup: added "`make analyse`" to run "`splint`" and "`flawfinder`" on all source files
   * cleanup: corrected detection of boolean capability
+  * cleanup/security: removed *DEBUG* environment variable in debug mode, added "`--debug`" instead
 
 1.7.18 - 28 July 2023 
   * fix: language file installation had been broken by the configuration script rewrite