diff --git a/1.8.md b/1.8.md
index 32d4ffd0..9bfbf801 100644
--- a/1.8.md
+++ b/1.8.md
@@ -4,6 +4,10 @@
 
 - **[@hashhar](https://github.com/hashhar)**
 
+### Info
+
+- Use faster `$(())` syntax for index variables.
+
 ### Ascii
 
 - Add `ascii_bold` which allows you to bold the ascii art.