May 31, 2007: version 2.0.0

    * C-callable 64-bit version added

    * ported to 64-bit MATLAB

    * subdirectories added (Source/, Include/, Lib/, Demo/, Doc/, MATLAB/)

Dec 12, 2006: version 1.3.4

    * minor MATLAB cleanup

Sept 11, 2006: version 1.3.1

    * The ldl m-file renamed to ldlsparse, to avoid name conflict with the
	new MATLAB ldl function (in MATLAB 7.3).

Apr 30, 2006:  version 1.3

    * requires AMD v2.0.  ldlmain.c demo program modified, since AMD can now
	handle jumbled matrices.  Minor change to Makefile.

Aug 30, 2005:

    * Makefile changed to use ../UFconfig/UFconfig.mk.  License changed to
	GNU LGPL.

July 4, 2005:

    * user guide added.  Since no changes to the code were made,
	the version number (1.1) and code release date (Apr 22, 2005)
	were left unchanged.

Apr. 22, 2005:  LDL v1.1 released.

    * No real changes were made.  The code was revised so
	that each routine fits on a single page in the documentation.

Dec 31, 2003:  LDL v1.0 released.