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BitTorrent (software)

BitTorrent
Bittorrent 7.2 Logo.png
Original author(s) Bram Cohen
Developer(s) BitTorrent, Inc.
Initial release FOSS (Cross-platform):
July 2, 2001; 15 years ago (2001-07-02)
Closed source (Windows, Mac OS X):
September 18, 2007; 9 years ago (2007-09-18)
Stable release

Windows:
7.9.9 (Build 43389) (February 17, 2017; 2 months ago (2017-02-17))

macOS:

7.4.3 (Build 42732) (October 22, 2016; 5 months ago (2016-10-22))
Preview release

Windows:

8.0 alpha Build 25431 (November 10, 2011; 5 years ago (2011-11-10))
Development status Active
Written in C++ (6.0 and later) , Python (5.3 and earlier)
Operating system Windows, Mac OS X
Size
Windows 
1.86 MB
Mac OS X 
2.74 MB
Available in Multilingual (66)
Type BitTorrent client / Peer-to-peer
License Proprietary, adware (6.0 and later)
Website www.bittorrent.com

Windows:
7.9.9 (Build 43389) (February 17, 2017; 2 months ago (2017-02-17))

macOS:

Windows:

BitTorrent is an ad-supportedpeer-to-peer program developed by Bram Cohen and BitTorrent, Inc. used for uploading and downloading files via the . BitTorrent was the first client written for the protocol. It is often nicknamed Mainline by developers denoting its official origins. Since version 6.0 the BitTorrent client has been a rebranded version of µTorrent. As a result, it is no longer open source. It is currently available for Microsoft Windows, Mac OS X, and Android (operating system).

Programmer Bram Cohen designed the protocol in April 2001 and released a first implementation of the BitTorrent client on 2 July 2001. It is now maintained by Cohen's company BitTorrent, Inc.

Prior to version 6.0, BitTorrent was written in Python, and was free software. Very early versions released prior to December 30, 2001 were released into the public domain without a license. Versions up to and including 3.4.2 were distributed under the MIT license. The source code for versions 4.x and 5.x was released under the BitTorrent Open Source License, a modified version of the Open Source License. Versions 4.0 and 5.3 were relicensed under the GPL.


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