Mon Apr 09 12:00:00 2001 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 2.3 has been released.

        * glpmip.h, glpmip/*.c
        These routines (that implement the branch-and-bound method) were
        re-programmed in order to improve robustness of implementation.
        In particular, heuristic routines were carried out from the main
        driver routine.

        Additional GLPK API routines were documented.

        New edition of the document "GLPK User's Guide" was included in
        the package.

        The preliminary document "Mixed Integer Programming Using GLPK
        Version 2.2 (Supplement to GLPK User's Guide)" was removed from
        the package, because this material was included in GLPK User's
        Guide.

Thu Mar 15 12:00:00 2001 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 2.2 has been released.

        Now GLPK includes a tentative implementation of the
        branch-and-bound procedure based on the dual simplex method for
        mixed integer linear programming (MIP).

        The preliminary document "Mixed Integer Programming Using GLPK
        Version 2.2 (Supplement to GLPK User's Guide)" was included into
        the package in plain text format (see the file 'mip.txt' in the
        subdirectory 'doc' of the distribution).

        * glpmip.h, glpmip/*.c, glpapi/glp_integer.c
        These routines (that implement the branch-and-bound method) were
        added to the package.

        * sample/glpsol.c
        This program was modified in order to allow solving LP and MIP
        problems.

        * glprsm/rsm_primal.c, glprsm/rsm_dual.c, glprsm/rsm_feas.c,
        * glprsm/rsm1_driver.c
        These routines (which are drivers to basic components of the
        revised simplex method) were added to the package.

Mon Feb 19 12:00:00 2001 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 2.1 has been released.

        * glprsm.h, glprsm/*.c
        These routines (that implement components of the revised simplex
        method) were re-programmed and documented.

        The document "GLPK Implementation of the Revised Simplex Method"
        was included into the package.

Thu Jan 25 12:00:00 2001 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 2.0 has been released.

        Now GLPK includes a tentative implementation of the primal-dual
        interior point method for large-scale linear programming (for
        more details see the file `NEWS' in the distribution). A number
        of routines related to the interior point method were added to
        the package.

        * insist.c
        The routine `insist' and the macro of the same name were
        introduced into the package in order to replace the standard
        macro `assert'. Some routines require the expression specified
        in the `assert' macro to be evaluated, but compiling the package
        with NDEBUG option prevents from that. This bug was fixed due to
        bug report provided by Peter A. Huegler <phuegler@bsco.com>.

        * Makefile.in
        Minor bug was fixed due to a patch provided by Alexandre Oliva
        <oliva@lsd.ic.unicamp.br>.

Wed Jan 10 12:00:00 2001 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 1.1.2 has been released.

        * umalloc.c, ufree.c, create_pool.c, get_atom.c, get_atomv.c
        These routines were changed in order to fix a bug due to
        report provided by Andrew Hood <ajhood@fl.net.au>. Because of
        this bug data alignment error occured on the Sparc computer.

Tue Dec 14 12:00:00 2000 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 1.1.1 has been released.

        Minor bug was fixed in `Makefile.in'.

        GLPK Library Reference was included.

Mon Nov 27 12:00:00 2000 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 1.1 has been released.

        Minor changes were made in order to co-ordinate GLPK routines
        with their descriptions.

        GLPK User's Guide was included.

Fri Oct 20 12:00:00 2000 Andrew Makhorin <mao@mai2.rcnet.ru>

        * GLPK 1.0 has been released.
