diff --git a/RELEASE-NOTES-v1.0.0.md b/RELEASE-NOTES-v1.0.0.md
index a2f9a1b2..ba8f7f91 100644
--- a/RELEASE-NOTES-v1.0.0.md
+++ b/RELEASE-NOTES-v1.0.0.md
@@ -109,3 +109,4 @@ Archipelago is open source. To contribute:
 ## License
 
 MIT License. See `LICENSE` for details.
+# 2026-04-18 ISO build trigger