diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef97159..dce446d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Dates follow GitHub publication (UTC); legacy records retain their archived date
 
 ## 0.9.0 — 2026-10-28
 
+**Portable Characters are experimental and may contain bugs.**
+
 - Choose Parallel or Global level scaling in module settings.
 - Report Content Scaling problems directly to its repository.
 - Send custom race problem reports directly to their maintainer.
diff --git a/changelog/history.json b/changelog/history.json
index f7a5244..0f8d773 100644
--- a/changelog/history.json
+++ b/changelog/history.json
@@ -752,7 +752,10 @@
         "Control portable characters and keep Manager running in the system tray"
       ],
       "commit": "dc97095bd6b36d9b5111f04f0cfd88e1fb2ab1f1",
-      "compare": "https://github.com/Corfirean/coa-server-manager/compare/v0.8.2...v0.9.0"
+      "compare": "https://github.com/Corfirean/coa-server-manager/compare/v0.8.2...v0.9.0",
+      "experimentalFeatures": [
+        "portable-characters"
+      ]
     }
   ]
 }