What is BFGMiner?
BFGMiner is a modular ASIC/FPGA miner written in C, featuring dynamic clocking, monitoring, and remote interface capabilities.
Where can I have more information about BFGMiner?
Please refer to the official forum thread on BitcoinTalk.
What's new?
NEW VERSION 5.5.0, JANUARY 3 2018
You can read the full changelog here.