Software Name: BlackBerry Handheld Software v188.8.131.5255 (All Languages)
File Name: 9800AllLang_PBr6.0.0_rel3155_PL184.108.40.206_A220.127.116.117_Telus_Mobility.exe
Download Size: 187 MB
Published Date: 09/20/2012
Direct download OS18.104.22.1687 LINK
As usual, always backup your BlackBerry device prior to performing any install, either an official or leaked OS.
Also, pull your battery at least 3-4 times throughout the day to give the OS time to settle in.
Guido DR @furiousguido