it's the developers nightmare!!!!!

Sorry to hear about your troubles but let me point out a few facts.

1. WooCommerce 2.1 beta has been announced since November so developers had more than enough time to test this and fix what they need to fix to make compatible.

2. Links to documentation on what we’ve implemented and discussion can be found here https://develop.woothemes.com/woocommerce/tag/woocommerce-2-1/

3. You should always backup before updating to prevent issues like this or at least deploy it on a test site first.

I understand the situation, and sorry I got angry, my clients are all mad at me and I have 187 of the.

Fortunately I did make a backup and trying to make it compatible now.

One issue though, I have overridden wc-add-to-cart and wc-cart and they seemed to be working in the earlier versions, but now they seem to be enqueued in the wrong order if I dequeue, deregister and re-queue them in the functions.php

Is there a documentation guide on how to do this the right way?

I understand the situation, and sorry I got angry, my clients are all mad at me and I have 187 of the.

Fortunately I did make a backup and trying to make it compatible now.

One issue though, I have overridden wc-add-to-cart and wc-cart and they seemed to be working in the earlier versions, but now they seem to be enqueued in the wrong order if I dequeue, deregister and re-queue them in the functions.php

Is there a documentation guide on how to do this the right way?

I understand the situation, and sorry I got angry, my clients are all mad at me and I have 187 of them.

Fortunately I did make a backup and trying to make it compatible now.

One issue though, I have overridden wc-add-to-cart and wc-cart and they seemed to be working in the earlier versions, but now they seem to be enqueued in the wrong order if I dequeue, deregister and re-queue them in the functions.php

Is there a documentation guide on how to do this the right way?

No documentation however it is standard WordPress enqueue method. But if you open up the class-wc-frontend-scripts.php file, you can examine how everything is loaded. That should help you with your situation. That file is located inside the includes folder of WC.

Thank you very much Roy for helping me.