diff --git a/build/versions.env b/build/versions.env
index 7462c76..d68c64d 100644
--- a/build/versions.env
+++ b/build/versions.env
@@ -84,3 +84,5 @@ QEMU_SHA256_aarch64=6d63343834ba45871bb0c8c70d9fd17c143ed0784cf1a70dd80edc6b8a02
 
 # Alpine base used for the musl-static clang build.
 ALPINE_TAG=alpine:3.21
+
+# (v0.6.x maintenance line — back-patch demo)