May 4, 2016: version 2.2.6

    * minor changes to Makefile

Apr 1, 2016: version 2.2.5

    * licensing simplified (no other change); refer to LDL/Doc/License.txt

Feb 1, 2016: version 2.2.4

    * update to Makefiles

Jan 30, 2016: version 2.2.3

    * modifications to Makefiles

Jan 1, 2016: version 2.2.2

    * modified Makefile to create shared libraries
        No change to C code except version number

Oct 10, 2014: version 2.2.1

    modified MATLAB/ldl_make.m.  No change to C code except version number.

July 31, 2013: version 2.2.0

    * changed malloc and printf pointers to use SuiteSparse_config

Jun 1, 2012: version 2.1.0

    * UFconfig replaced with SuiteSparse_config

Dec 7, 2011: version 2.0.4

    * fixed the Makefile to better align with CFLAGS and other standards
    * modified the demo program to check for errors in input test matrices

Jan 25, 2011: version 2.0.3

    * minor fix to "make install"

Nov 30, 2009: version 2.0.2

    * added "make install" and "make uninstall"

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.  default license changed

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.
