changes.src: document updated AVX specification
diff --git a/doc/changes.src b/doc/changes.src
index f593b14..f336d93 100644
--- a/doc/changes.src
+++ b/doc/changes.src
@@ -25,6 +25,8 @@
 
 \b Fix section alignment in the Mach-O format.
 
+\b Update AVX support to version 5 of the Intel specification.
+
 
 \S{cl-2.05.01} Version 2.05.01