History
The application was created by Justin Karneges and it began as a side project. At various points during its existence Justin was paid to develop the codebase, during which Psi flourished. Typically however, the release cycle of Psi is relatively slow, but the client has always been seen by its fans as a very stable and powerful instant messaging client. Justin left the project in late 2004 to pursue other endeavors. In 2002 Michail Pishchagin started hacking Qt code which later became libpsi library. Michail joined the team in March 2003 and he is responsible for many large chunks in Psi code. In 2009 a development branch named Psi+ was started which adds patches and new features to Psi.
In November 2004, maintenance was taken over by Kevin Smith, a long-time contributor to the project. In 2009, Kevin handed maintenance back to Justin, who also maintains Iris, the Qt/C++ XMPP library upon which Psi is based.
Remko Tronçon started writing his custom patches for Psi in 2003, and became an official developer in May 2005.
'Psi' is the twenty-third letter of the Greek alphabet (Ψ), which is used as the software's logo.
Read more about this topic: Psi (instant Messaging Client)
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