Greg Stein (born March 16, 1967 in Portland, OR), living in San Francisco, CA, USA, is a programmer, speaker, sometime standards architect, and open-source software advocate, appearing frequently at conferences and in interviews on the topic of open-source software development and use. He is a director of the Apache Software Foundation, and served as chairman from 21 August 2002 to 20 June 2007[1]. He is also a member of the Python Software Foundation, was a director there from 2001-2002[2], and a maintainer of the Python programming language and libraries (active from 1999 to 2002)[3]. Stein has been especially active in version control systems development. In the late 1990s and early 2000s, he helped develop the WebDAV HTTP versioning specification[4], and is the main author of mod_dav, the first open-source implementation of WebDAV. He was one of the founding developers of the
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