FrostWire is a free Gnutella client based on LimeWire distributed under terms of the GPL. It was created in September 2005 after LimeWire LLC received a cease and desist letter from the RIAA, threatening to sue them for millions of dollars unless they stop their users from offering copyrighted songs. Unwilling to take the matter to court, LimeWire implemented a filter, preventing its users from sharing audio files that did not contain either a commercial Weed license or a Creative Commonse License. The LimeWire open-source community then decided to create FrostWire, - a free offspring using the publicly available sourcecode from LimeWire to create a Gnutella client that does not filter any content. This project is not affiliated with LimeWire LLC--the official maker of the LimeWire application.The FrostWire project will always remain strictly non-profit and free of any bundled software, including any ads or nags. FrostWire 4.13.1 include Bittorrent support, better search results and faster downloads, along with many UI improvements.