I’m still on localhost ( XAMPP 1.8.0 [PHP: 5.4.4]) to build the first theme that will be used in WPMU web. What I did:
1. I installed WP 3.5, created the CTP and its taxonomies.
2. I created custom fields co ACF 3.x.
3. I upgraded to WP 3.6 and 4.2 ACF
4. Found errors: infinite loop fields, display fields all posts not only in local set.
5. Removed fields via plugin and did not use php code in functions.