diff --git a/UPDATING b/UPDATING
index 12adfb6c0a5..04c4418495b 100644
--- a/UPDATING
+++ b/UPDATING
@@ -26,6 +26,12 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 13.x IS SLOW:
 	disable the most expensive debugging functionality run
 	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20191226:
+	Clang/LLVM is now the default compiler for all powerpc architectures.
+	LLD is now the default linker for powerpc64.  The change for powerpc64
+	also includes a change to the ELFv2 ABI, incompatible with the existing
+	ABI.
+
 20191226:
 	Kernel-loadable random(4) modules are no longer unloadable.