[cflsystems]

Ok this may be something totaly wrong with me but will post anyway, just so everybody be more cautious.
So I tried the 4.4.2-4.4.3 upgrade today. All ok, I had to manually patch/check like 5 files due to patches applied earlier. After the upgrade though some areas of the site became inoperational. For example orders.php in admin, cart.php, adding product to cart as a customer returns error. Each of this scripts ends with a screen "500 internal server error". My guess is the upgrade changed some permissions. I had to revert back to 4.4.2 from a backup and all works just fine. I will give it another try but in the meantime - anybody done 4.4.2-4.4.3 upgrade yet? Any problems?