diff --git a/Developers-notes.md b/Developers-notes.md
index 1485b54..5c1ed19 100644
--- a/Developers-notes.md
+++ b/Developers-notes.md
@@ -1,5 +1,9 @@
 ## About HTML / CSS / JS
 
+### Upgrade jQuery
+To keep compatibility with IE6-8 ?
+https://www.impressivewebs.com/loading-different-jquery-version-ie6-8/
+
 ### How to avoid Javascript
 * [Functional CSS Tabs Re-Revisited](https://css-tricks.com/functional-css-tabs-re-revisited/)
 * [Radio-Controlled Web Design](http://alistapart.com/article/radio-controlled-web-design)