strong ssl ciphers - browsers

[Hajo Locke]

Hello,

we want to secure our server against beast attack like shown here:
http://nginx.org/en/docs/http/configuring_https_servers.html
This is all working.after first tests.
My Question is: are there some old but still used browsers which would be 
excluded from server?
I just want to know how many people cant do an ssl connection if only strong 
ciphers are used.

Thanks,
Hajo