Index: UPDATING
===================================================================
--- UPDATING
+++ UPDATING
@@ -40,6 +40,9 @@
 	loader and loader_4th instead of loader and loader_lua, the new default.
 	If you are using UEFI it will create the proper hard link to loader.efi.
 
+	bhyve uses userboot.so. It remains 4th-only until some issues are solved
+	regarding coexisting with multiple versions of FreeBSD are resolved.
+
 20180815:
 	ls(1) now respects the COLORTERM environment variable used in other
 	systems and software to indicate that a colored terminal is both
Index: stand/userboot/userboot/Makefile
===================================================================
--- stand/userboot/userboot/Makefile
+++ stand/userboot/userboot/Makefile
@@ -5,6 +5,7 @@
 LOADER_CD9660_SUPPORT?=	no
 LOADER_EXT2FS_SUPPORT?=	no
 PIC=yes
+LOADER_INTERP=4th
 
 .include <bsd.init.mk>