If you are a non-paying member, you were limited to a maximum of 2 simultaneous download streams and you were limited to 30 kb/s download rate per stream.
As a non-paying member, I just successfully launched 4 simultaneous download streams even as each stream was still limited to 30 kb/sec. This should not be happening. Somewhere in the upgrade, it would appear they lost control of the 2-stream cap on non-paying users. If the poorer parts of the world where nobody is paying member have discovered this and are exploiting this loss of the 2-stream cap, the site in general may be bumping up against a max bandwidth limit, to the detriment of paying users now being inconvenienced.
At the time I launched this test to show this non-paying US member going beyond my usual allocation of 2 streams, it was 4 am in India.
