We applied an Update to our Haste Code. It has no effect to DPS, only improving its function and calculation.
Earlier if you had more than 3300 haste (as an example 4k haste) and you had some effect on you which supposed to reduce your haste and attack speed like mage shield (-10%), it wouldnt change your attack speed since it would only reduce 400 form 4k and player could remain with cap still. Starting now no matter how many haste you have more than 3300 if you get a debuff it would reduce it from 3300.