1 files changed, 1 insertions, 0 deletions
diff --git a/CHANGELOG b/CHANGELOG
index 3af20cc..55af456 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -37,6 +37,7 @@
   or rounding, or require W=0/W=1, etc).
 * some instructions (such as invept, invvpid) were accepted by uarch-specific
   deocders when they should not have been.
+* disallow 66-prefixed `sha1rnds4`.
 
 ## 2.0.0