Dropping from Tiers in S4?

Hi,
does anyone know if you can drop from tiers now?

Riot announced this change a few months ago and said they would include this feature in season 4.

Has anyone any information regarding that?

Yes, you can drop tiers now.
I read on reddit, that there will be a warning, when your MMR is low and if u lose more games you'll drop.

finally a good new change

#closed