diff --git a/CHANGELOG b/CHANGELOG
index e1f8fc1f5..64b90070c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,9 +1,14 @@
 2023.10 Highlights:
 - GeoIP - CDN Hosting: https://archboot.com,
   the other used addresses redirect to the .com again.
+- solved pretty all bottlenecks in the ISO build chain.
+  The improvement is about 20% or even more.
+  eg. aarch64 ISO building reduced from around 19 minutes to
+      11 minutes on my x86_64 system.
 - many speed improvements all over the places
-- solved pretty all bottlenecks in the ISO build chain
-  and the running system.
+  eg. Qemu startup test:
+      2023.09 local ISO starts up to full system in 132 seconds
+      2023.10 local ISO starts up to full system in 110 seconds
 Environment:
 - simplified grub-mkstandalone calls
 - added grub bli module loading on x86_64 EFI systems