about downloding 10.3.2.2876

hi
i found one site for downloding 10.3.2.2876 this software was beta ?
BlackBerry OS 10.3.2.2876 Now Available To Download - Blackberry Empire
which software better to download show me link
i am wating this link
Z10 (STL 100-2/3/4) and Porsche P9982 Radio – [23 MB]

http://cdn.fs.sl.blackberry.com/fs/q…-v7+signed.bar
but to large and over 23mb
plz help me