The version 1.0 of PyMOL has been released on 2007-06-21.
PyMOL 1.0 executables are available for download by current PyMOL Subscribers. The open-source code for 1.0 is freely available from the b10 branche of the subversion repository:
svn co https://pymol.svn.sourceforge.net/svnroot/pymol/branches/b10/pymol pymol-1.0
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