Edit History

How to Upgrade Safely

• Backup Everything before changes.
• Replace jQuery in header.tpl or the theme’s equivalent file

https://app.screencast.com/Ekl3tUziesjTM 

Ensure that no modules are explicitly loading their own older version.

Test:

• All front office pages (cart, product, search, checkout)
• Back office (module install/config, product edit, etc.)
• Use your browser's console to monitor deprecated jQuery method warnings.

If you want to future-proof or plan to upgrade to PrestaShop 1.7/8 eventually, consider testing with jQuery 3.x and using the jQuery Migrate plugin to help debug issues. But for 1.6.1.24, v1.12.4 is the safest max version to go without large-scale rewrites.