ChangeLog

July 2015: SuiteSparse version 4.4.5

    * CHOLMOD 3.0.6:
        - minor fix to CHOLMOD (-DNGPL did not work as expected)
        - added MATLAB interface for row add/delete (lurowmod)
    * KLU 1.3.3: Fix for klu_dump.c (debugging case only)
    * UFcollection:  added additional stats for matrix collection
    * AMD: changed the license.  Was LGPL only, now either LGPL or BSD,
        at the user's option.  See AMD/Doc/License.txt for details.

Mar 24, 2015: SuiteSparse version 4.4.4

    * CHOLMOD version number corrected.  In 4.4.3, the CHOLMOD_SUBSUB_VERSION
        string was left at '4' (it should have been '5', for CHOLMOD 3.0.5).
        This version of SuiteSparse corrects this glitch.
    * Minor changes to comments in SuiteSparse_config.
    * SPQR version 2.0.1 released (minor update to documentation)

Jan 19, 2015: SuiteSparse version 4.4.3

    * CHOLMOD 3.0.5: minor bug fix to MatrixOps/cholmod_symmetry

Jan 7, 2015: SuiteSparse version 4.4.2

    * CHOLMOD 3.0.4: serious bug fix in supernodal factorization,
	introduced in CHOLMOD 3.0.0 (SuiteSparse 4.3.0).  Can cause segfault,
	and has no user workaround.

Oct 23, 2014: SuiteSparse version 4.4.1
    Minor update:  two bug fixes (affecting Windows only)

    * CHOLMOD 3.0.3:
        minor update to CHOLMOD (non-ANSI C usage in one *.c file, affects
        Windows only)
    * KLU 1.3.2:
        minor fix to MATLAB install; no change to C except version nubmer


Oct 10, 2014: SuiteSparse version 4.4.0
    MAJOR UPDATE:  new GPU-acceleration for SPQR

    * AMD 2.4.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * BTF 1.2.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CAMD 2.4.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CCOLAMD 2.9.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CHOLMOD 3.0.2:
        update to accomodate GPU-accelerated SPQR
        added CHOLMOD/Include/cholmod_function.h
    * COLAMD 2.9.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CSparse 3.1.4:
        minor fix to MATLAB install; no change to C except version nubmer
    * CXSparse 3.1.4:
        minor fix to MATLAB install; no change to C except version nubmer
    * GPUQREngine 1.0.0:
        FIRST RELEASE.  Used by SPQR 2.0.0
    * KLU 1.3.1:
        minor fix to MATLAB install; no change to C except version nubmer
        update to KLU/Tcov/Makefile
    * LDL 2.2.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * RBio 2.2.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * SPQR 2.0.0:
        MAJOR UPDATE.  added GPU support.  Up to 11x faster than on CPU
    * SuiteSparse_GPURuntime 1.0.0:
        FIRST RELEASE.  Used by SPQR 2.0.0
    * UMFPACK 5.7.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * MATLAB_Tools:
        modified SSMULT/ssmult_install.m.  No change to C code


July 18, 2014: SuiteSparse version 4.3.1
    Minor update:  added cholmod_rowfac_mask2 function to CHOLMOD

    * CHOLMOD 3.0.1:
        added cholmod_rowfac_mask2 function.  Minor fix to build process
    * SPQR 1.3.3:
        minor fix to build process


March 26, 2014: SuiteSparse version 4.3.0
    MAJOR UPDATE: first release of CHOLMOD GPU acceleration
    minor update: modified all packages to use SuiteSparse_config for
        malloc/calloc/realloc/free, printf, hypot, and divcomplex
        function pointers.

    * AMD 2.4.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * CAMD 2.4.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * CCOLAMD 2.9.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * CHOLMOD 3.0.0:
        MAJOR UPDATE to GPU acceleration.  Released at GTC 2014.
    * COLAMD 2.9.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * CSparse 3.1.3:
        minor update to UFget
    * CXSparse 3.1.3:
        minor update to UFget
    * KLU 1.3.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * LDL 2.2.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * RBio 2.2.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * SPQR 1.3.2:
        changed malloc/printf pointers to use SuiteSparse_config
    * UMFPACK 5.7.0:
        changed malloc/printf pointers to use SuiteSparse_config
    * MATLAB_Tools:
        added stats to UFcollection, revised commends in SFMULT,
        minor update to spok


April 25, 2013: SuiteSparse version 4.2.1
    minor update

    * CHOLMOD 2.1.2:
        minor update to Cholesky/*solve*c (for Windows compiler)
    * UMFPACK 5.6.2:
        bug fix in Demo/Makefile for Fortran interface
    * MATLAB_Tools:
        minor update to sparseinv


April 16, 2013: SuiteSparse version 4.2.0
    minor update and bug fix

    * CHOLMOD 2.1.1:
        minor changes to GPU accelerated version, fixed GPU memory leak
    * CSparse 3.1.2:
        minor update to cs_sqr.c; no affect on functionality
    * CXSparse 3.1.2:
        minor update to cs_sqr.c; no affect on functionality

March 27, 2013: SuiteSparse version 4.1.0
    new features added to CHOLMOD

    * CHOLMOD 2.1.0:
        added new features and functions to forward/backsolve:
        cholmod_lsolve_pattern, cholmod_solve2, cholmod_ensure_dense.
    * MATLAB_Tools:
        added SFMULT.  minor update to Factorize, problems added to dimacs10

July 17, 2012: SuiteSparse version 4.0.2
    major update to MATLAB_Tools/Factorize.  No change to any C code.

    * MATLAB_Tools:
        major update to Factorize, minor update to sparseinv


June 20, 2012: SuiteSparse version 4.0.1

    * AMD 2.3.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CAMD 2.3.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CHOLMOD 2.0.1:
        bug fix for GPU code, when the matrix is singular
        minor fix to MATLAB install
    * CSparse 3.1.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * CXSparse 3.1.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * KLU 1.2.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * RBio 2.1.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * SPQR 1.3.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * UMFPACK 5.6.1:
        minor fix to MATLAB install; no change to C except version nubmer
    * MATLAB_Tools:
        update to UFcollection (filesep) 


June 1, 2012: SuiteSparse version 4.0.0
    MAJOR UPDATE: First GPU version for CHOLMOD.
    UFconfig renamed to SuiteSparse_config.

    * AMD 2.3.0:
        replaced UFconfig with SuiteSparse_config
    * BTF 1.2.0:
        replaced UFconfig with SuiteSparse_config
    * CAMD 2.3.0:
        replaced UFconfig with SuiteSparse_config
    * CCOLAMD 2.8.0:
        replaced UFconfig with SuiteSparse_config
    * CHOLMOD 2.0.0:
        replaced UFconfig with SuiteSparse_config
        first GPU-accelerated version.
    * COLAMD 2.8.0:
        replaced UFconfig with SuiteSparse_config
    * CSparse 3.1.0:
        minor changes to enable creation of CXSparse 3.1.0
    * CXSparse 3.1.0:
        replaced UFconfig with SuiteSparse_config
    * KLU 1.2.0:
        replaced UFconfig with SuiteSparse_config
    * LDL 2.1.0:
        replaced UFconfig with SuiteSparse_config
    * RBio 2.1.0:
        replaced UFconfig with SuiteSparse_config
    * SPQR 1.3.0:
        replaced UFconfig with SuiteSparse_config
        removed spqr_time; using SuiteSparse timing routines instead
    * UMFPACK 5.6.0:
        replaced UFconfig with SuiteSparse_config
    * MATLAB_Tools:
        update to documentation for Factorize, update to UFcollection

May 15, 2012: SuiteSparse version 3.7.1
    minor update

    * AMD 2.2.4:
        minor compiler workaround
    * CAMD 2.2.4:
        minor compiler workaround
    * KLU 1.1.4:
        bug fix in the case of Int overflow
    * MATLAB_Tools:
        minor update to spqr_rank and UFcollection

Dec 15, 2011: SuiteSparse version 3.7.0
    MAJOR UPDATE: added spqr_rank and sparseinv to MATLAB_Tools
    major update to Factorize package in MATLAB_Tools
    minor update to Makefiles for C code.

    * AMD 2.2.3:
        Makefile updated
    * BTF 1.1.3:
        Makefile updated
    * CAMD 2.2.3:
        Makefile updated
    * CCOLAMD 2.7.4:
        Makefile updated
    * CHOLMOD 1.7.4:
        Makefile updated
    * COLAMD 2.7.4:
        Makefile updated
    * CSparse 3.0.2:
        Makefile updated.  Fix to MATLAB install.  Now as CSparse (not CSparse3)
    * KLU 1.1.3:
        Makefile updated.  minor fix to MATLAB mexFunction
    * LDL 2.0.4:
        Makefile updated.  Update to demo program
    * RBio 2.0.2:
        Makefile updated.  Update to MATLAB mexFunction
    * SPQR 1.2.3
        Makefile updated.  Update to MATLAB install
    * UMFPACK 5.5.2:
        Makefile updated.  Update to MATLAB install
    * MATLAB_Tools:
        added spqr_rank and sparseinv.  Major update to Factorize, dimacs10



May 10, 2011: SuiteSparse version 3.6.1
    minor update

    * SPQR 1.2.2:
        minor fix, compiler workaround
    * CSparse 3.0.1:
        Added as the CSparse3 directory (original date Jan 19, 2010;
        added to SuiteSparse on May 10, 2011.  Note that CSparse v2.x.x.
        was also distributed)
    * MATLAB_Tools:
        added dimacs10.  Minor update to spok.


Jan 25, 2011: SuiteSparse version 3.6.0
    minor update

    * AMD 2.2.2:
        Makefile updated.
    * BTF 1.1.2:
        Makefile updated.
    * CAMD 2.2.2:
        Makefile updated.
    * CCOLAMD 2.7.3:
        Makefile updated.  Minor fix to stats printout
    * CHOLMOD 1.7.3:
        Makefile updated.  Minor fix, compiler workaround
    * COLAMD 2.7.3:
        Makefile updated
    * CSparse 2.2.5:
        Makefile updated.  minor fixes to UFget, cs_util.c.
    * KLU 1.1.2:
        Makefile updated.  ported Tcov to Mac.
    * LDL 2.0.3:
        Makefile updated.
    * RBio 2.0.1:
        Makefile updated.
    * SPQR 1.2.1:
        Makefile updated.  Added examples.  Fixed error handling.
    * UMFPACK 5.5.1:
        Makefile updated.
    * MATLAB_Tools:
        minor update to spok

Nov 30, 2009: SuiteSparse version 3.5.0
    major update to SPQR and RBio; minor updates to Makefiles.

    * AMD 2.2.1:
        Makefile updated.
    * BTF 1.1.1
        Makefile updated.
    * CAMD 2.2.1:
        Makefile updated.
    * CCOLAMD 2.7.2:
        Makefile updated.
    * CHOLMOD 1.7.2:
        Makefile updated.  Fixed 64-bit BLAS for MATLAB 7.8.
    * COLAMD 2.7.2:
        Makefile updated.
    * CSparse 2.2.4
        Makefile updated.  MATLAB install updated.
    * KLU 1.1.1:
        Makefile updated.
    * LDL 2.0.2:
        Makefile updated.
    * RBio 2.0.0:
        major update: rewritten in C.  No longer in Fortran.
        Makefile updated.
    * SPQR 1.2.0:
        major update: added features required by MATLAB package spqr_rank,
        changed default ordering to COLAMD.
        Makefile updated.
    * UMFPACK 5.5.0:
        major update.  Added user-ordering function, interface to CHOLMOD
        orderings, option to disable singleton search to allow L to be
        well-conditioned.
        Makefile updated.
    * MATLAB_Tools:
        major update to Factorize.  Minor updates to GEE, getversion, spok.


May 20, 2009: SuiteSparse version 3.4.0
    MAJOR UPDATE: added Factorize package to MATLAB_TOols
    major update to UMFPACK (removed 2-by-2 strategy)

    * RBio 1.1.2:
        update to MATLAB install
    * SPQR 1.1.2:
        added more examples.  Mac compiler workaround.
    * UMFPACK 5.4.0:
        removed 2-by-2 strategy.  update to MATLAB install.
    * MATLAB_Tools:
        added Factorize


March 24, 2009: SuiteSparse version 3.3.0
    minor update

    * BTF 1.1.0:
        minor update.
    * CHOLMOD 1.7.1:
        bug fix for cholmod_symmetry
    * CSparse 2.2.3:
        cs_gaxpy example fixed.  Minor change to MATLAB cs_sparse interface
    * CXSparse 2.2.3:
        cs_gaxpy example fixed.  Minor change to MATLAB cs_sparse interface
    * KLU 1.1.0:
        minor update.
    * SPQR 1.1.1:
        minor update (compiler workaround)
    * UMFPACK 5.3.0:
        compiler workaround.  added timer options.
        bug fix for 2-by-2 strategy (subsequently removed in v5.4.0)

Sept 20, 2008: SuiteSparse version 3.2.0
    MAJOR UPDATE: first release of SPQR

    * CHOLMOD 1.7.0:
        major update for SPQR.
    * CXSparse 2.2.2:
        update to MATLAB install
    * CSparse 2.2.2:
        update to MATLAB install
    * SPQR 1.1.0:
        FIRST RELEASE in SuiteSparse.
    * MATLAB_TOOLS:
        added: GEE, find_components, spok

Nov 1, 2007: SuiteSparse version 3.1.0
    minor update

    * BTF 1.0.1:
        minor update.
    * CCOLAMD 2.7.1:
        minor changes to MATLAB test code.
    * CHOLMOD 1.6.0:
        bug fix to cholmod_symmetry.  Performance fix for cholmod_nesdis.
        port to MATLAB 7.5 and many minor changes in MATLAB interface.
    * COLAMD 2.7.1:
        minor changes to MATLAB test code.
    * CSparse 2.2.1:
        minor update.
    * CXSparse 2.2.1:
    * KLU 1.0.1:
        minor lint cleanup.
    * RBio 1.1.1:
        minor lint cleanup.
        minor update.
    * UMFPACK 5.2.0:
        change of license from LGPL to GPL.  minor lint cleanup.
        port to MATLAB 7.5.
    * MATLAB_Tools:
        added: LINFACTOR, MESHND, SSMULT, getversion, gipper, hprintf,
            pagerankdemo, shellgui, and waitmex

May 31, 2007: SuiteSparse version 3.0.0
    MAJOR UPDATE: first stable release of KLU and BTF
    other packages ported to 64-bit MATLAB.

    * AMD 2.2.0:
        port to 64-bit MATLAB.  minor changes in printing.
    * BTF 1.0.0:
        FIRST STABLE RELEASE
    * CAMD 2.2.0:
        port to 64-bit MATLAB.  minor changes in printing.
    * CCOLAMD 2.7.0:
        port to 64-bit MATLAB.  restructured directories
    * CHOLMOD 1.5.0:
        port to 64-bit MATLAB.  update to Makefile.
        bug fix for BLAS int, update to cholmod_updown.
    * COLAMD 2.7.0:
        port to 64-bit MATLAB.  restructured directories
    * CSparse 2.2.0:
        update to MATLAB interface.  restructured directories
    * LDL 2.0.0:
        major update:  added 64bit version, restructured directories
    * RBio 1.1.0:
        port to 64-bit MATLAB.
    * UMFPACK 5.1.0:
        port to 64-bit MATLAB.  minor changes in printing.

Dec 13, 2006: SuiteSparse version 2.4.0
    minor update

    * AMD 2.0.4:
        minor MATLAB cleanup
    * CAMD 2.1.2:
        minor MATLAB cleanup
    * CCOLAMD 2.5.2
        minor MATLAB cleanup
    * CHOLMOD 1.4.0:
        added support for large files.  Renamed MATLAB interface to cholmod2.
        minor MATLAB cleanup.
    * COLAMD 2.5.2:
        minor MATLAB cleanup
    * CSparse 2.0.7:
        minor MATLAB cleanup
    * CXSparse 2.0.7:
        minor MATLAB cleanup
    * LDL 1.3.4:
        minor MATLAB cleanup
    * UMFPACK 5.0.3:
        minor MATLAB cleanup

Dec 7, 2006: SuiteSparse version 2.3.1
    minor update

    * CSparse 2.0.6:
        update to UFget
    * CXSparse 2.0.6:
        update to UFget

Dec 2, 2006: SuiteSparse version 2.3.0
    MAJOR UPDATE

    * CHOLMOD 1.3.0:
        major update to file IO functions, added cholmod_symmetry,
        minor fix to cholmod_analyze_odering and cholmod_dense.c.
    * MATLAB_Tools:
        added UFcollection

Sept 11, 2006: SuiteSparse version 2.1.1

    * AMD 2.0.1:
        minor update
    * CAMD 2.1.1:
        minor update
    * CHOLMOD 1.2.0:
        performance improvements.  Added ordering options to MATLAB interface
    * COLAMD 2.5.1:
        minor update
    * CCOLAMD 2.5.1:
        minor update
    * CSparse 2.0.2:
        minor update to MATLAB interface
    * CXSparse 2.0.2:
        minor update to MATLAB interface
    * LDL 1.3.1:
        minor update to MATLAB interface
    * UMFPACK 5.0.1:
        minor update