Merge 16.4.1 into master

.github/workflows/lint.yml

@@ -17,7 +17,7 @@ jobs:
     name: clang-format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run clang-format style check for C/C++
         uses: jidicula/clang-format-action@v4.15.0
         with:
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: |
           sudo apt-key adv --fetch-keys http://repos.codelite.org/CodeLite.asc
@@ -45,14 +45,14 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: chartboost/ruff-action@v1
 
   flake8:
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.12"
@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         with:

.github/workflows/osxbinary.yml

@@ -13,10 +13,10 @@ on:
 
 jobs:
   macos-13:
-    runs-on: macos-13
+    runs-on: macos-14
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: |
             brew install automake autoconf
@@ -37,5 +37,5 @@ jobs:
       - run: make osx-dmg
       - uses: actions/upload-artifact@v5
         with:
-          name: artifact-osx-13
+          name: artifact-osx-14
           path: "*.dmg"

.github/workflows/python.yml

@@ -21,7 +21,7 @@ jobs:
         python-version: ['3.9', '3.13']
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
@@ -41,14 +41,14 @@ jobs:
         run: pytest
 
   macos-13:
-    runs-on: macos-13
+    runs-on: macos-14
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     strategy:
       matrix:
         python-version: ['3.13']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
@@ -64,14 +64,14 @@ jobs:
         run: pytest
 
   macos-14:
-    runs-on: macos-14
+    runs-on: macos-15
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     strategy:
       matrix:
         python-version: ['3.13']
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
@@ -94,7 +94,7 @@ jobs:
         python-version: ['3.13']
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:

.github/workflows/tools.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: |
           sudo apt-key adv --fetch-keys http://repos.codelite.org/CodeLite.asc
@@ -41,10 +41,10 @@ jobs:
           sudo make install
 
   macos:
-    runs-on: macos-13
+    runs-on: macos-14
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: brew install automake autoconf wxwidgets
       - run: aclocal
@@ -56,14 +56,14 @@ jobs:
       - run: make osx-dmg
       - uses: actions/upload-artifact@v5
         with:
-          name: artifact-osx-13
+          name: artifact-osx-14
           path: "*.dmg"
 
   macos-14:
-    runs-on: macos-14
+    runs-on: macos-15
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: brew install automake autoconf wxwidgets
       - run: aclocal
@@ -75,7 +75,7 @@ jobs:
       - run: make osx-dmg
       - uses: actions/upload-artifact@v5
         with:
-          name: artifact-osx-14
+          name: artifact-osx-15
           path: "*.dmg"
 
   windows:
@@ -85,7 +85,7 @@ jobs:
       run:
         shell: msys2 {0}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: msys2/setup-msys2@v2
         with:
           install: mingw-w64-x86_64-toolchain make automake autoconf

.github/workflows/wheels.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: windows-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python
         uses: actions/setup-python@v6
         with:

ChangeLog

@@ -1,6 +1,6 @@
 # Changelog
 
-## [16.4.1] - unreleased
+## [16.4.1] - 2025-12-17
 
 ### Fixed
 - Fixed a regression in which null outcomes in strategic game tables were not handled correctly
@@ -15,7 +15,7 @@
   mixed behavior profiles (#616)
 
 
-## [16.3.2] - unreleased
+## [16.3.2] - 2025-12-04
 
 ### Fixed
 - Parsing of output of `gambit-logit` in the graphical interface did not handle the

configure.ac

@@ -20,7 +20,7 @@ dnl along with this program; if not, write to the Free Software
 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 dnl
 
-AC_INIT([gambit],[16.4.0])
+AC_INIT([gambit],[16.4.1])
 AC_CONFIG_SRCDIR([src/gambit.h])
 AM_INIT_AUTOMAKE([subdir-objects foreign])
 dnl AC_CONFIG_MACRO_DIR([m4])

contrib/mac/Info.plist

@@ -19,13 +19,13 @@
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>16.4.0</string>
+	<string>16.4.1</string>
 	<key>CFBundleShortVersionString</key>
-	<string>16.4.0</string>
+	<string>16.4.1</string>
 	<key>CFBundleGetInfoString</key>
-	<string>Gambit version 16.4.0, (c) 1994-2025 The Gambit Project</string>
+	<string>Gambit version 16.4.1, (c) 1994-2025 The Gambit Project</string>
 	<key>CFBundleLongVersionString</key>
-	<string>16.4.0, (c) 1994-2025 The Gambit Project</string>
+	<string>16.4.1, (c) 1994-2025 The Gambit Project</string>
 	<key>NSHumanReadableCopyright</key>
 	<string>Copyright 1994-2025 The Gambit Project</string>
 	<key>LSRequiresCarbon</key>

doc/conf.py

@@ -55,7 +55,7 @@
 # The short X.Y version.
 version = "16.4"
 # The full version, including alpha/beta/rc tags.
-release = "16.4.0"
+release = "16.4.1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

doc/tools.convert.rst

@@ -40,7 +40,7 @@ Example invocation for HTML output::
 
    $ gambit-convert -O html 2x2.nfg
    Convert games among various file formats
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    <center><h1>Two person 2 x 2 game with unique mixed equilibrium</h1></center>
@@ -55,7 +55,7 @@ Example invocation for LaTeX output::
 
    $ gambit-convert -O sgame 2x2.nfg
    Convert games among various file formats
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    \begin{game}{2}{2}[Player 1][Player 2]

doc/tools.enummixed.rst

@@ -70,7 +70,7 @@ in Figure 2 of Selten (International Journal of Game Theory,
 
    $ gambit-enummixed e02.nfg
    Compute Nash equilibria by enumerating extreme points
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,0,1,0
@@ -82,7 +82,7 @@ information using the `-c` switch::
 
    $ gambit-enummixed -c e02.nfg
    Compute Nash equilibria by enumerating extreme points
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,0,1,0

doc/tools.enumpoly.rst

@@ -98,7 +98,7 @@ Computing equilibria of the strategic game :download:`e01.nfg
 
    $ gambit-enumpoly e01.nfg
    Compute Nash equilibria by solving polynomial systems
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1.000000,0.000000,1.000000,0.000000,0.000000,1.000000

doc/tools.enumpure.rst

@@ -66,7 +66,7 @@ Computing the pure-strategy equilibria of extensive game :download:`e02.efg
 
    $ gambit-enumpure e02.efg
    Search for Nash equilibria in pure strategies
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,0,0,1,0
@@ -77,7 +77,7 @@ strategies::
 
    $ gambit-enumpure -S e02.efg
    Search for Nash equilibria in pure strategies
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,0,1,0
@@ -88,7 +88,7 @@ only one information set; therefore the set of solutions is larger::
 
    $ gambit-enumpure -A e02.efg
    Search for Nash equilibria in pure strategies
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,1,0,1,0

doc/tools.gnm.rst

@@ -88,7 +88,7 @@ the reduced strategic form of the example in Figure 2 of Selten
     $ gambit-gnm e02.nfg
     Compute Nash equilibria using a global Newton method
     Gametracer version 0.2, Copyright (C) 2002, Ben Blum and Christian Shelton
-    Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+    Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
     This is free software, distributed under the GNU GPL
 
     NE,1,0,2.99905e-12,0.5,0.5

doc/tools.ipa.rst

@@ -55,7 +55,7 @@ the reduced strategic form of the example in Figure 2 of Selten
    $ gambit-ipa e02.nfg
    Compute Nash equilibria using iterated polymatrix approximation
    Gametracer version 0.2, Copyright (C) 2002, Ben Blum and Christian Shelton
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1.000000,0.000000,0.000000,1.000000,0.000000

doc/tools.lcp.rst

@@ -9,7 +9,7 @@ computes Nash equilibria by finding solutions to a linear
 complementarity problem. For extensive games, the program uses the
 sequence form representation of the extensive game, as defined by
 Koller, Megiddo, and von Stengel [KolMegSte94]_, and applies the
-algorithm developed by Lemke. For strategic games, the program using
+algorithm developed by Lemke. For strategic games, the program uses
 the method of Lemke and Howson [LemHow64]_.  There exist strategic
 games for which some equilibria cannot be located by this method; see
 Shapley [Sha74]_.
@@ -79,7 +79,7 @@ Computing an equilibrium of extensive game :download:`e02.efg
 
    $ gambit-lcp e02.efg
    Compute Nash equilibria by solving a linear complementarity program
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,1/2,1/2,1/2,1/2

doc/tools.liap.rst

@@ -85,7 +85,7 @@ Computing an equilibrium in mixed strategies of :download:`e02.efg
 
    $ gambit-liap e02.nfg
    Compute Nash equilibria by minimizing the Lyapunov function
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,0.998701,0.000229,0.001070,0.618833,0.381167

doc/tools.logit.rst

@@ -108,7 +108,7 @@ in Figure 2 of Selten (International Journal of Game Theory,
 
    $ gambit-logit e02.nfg
    Compute a branch of the logit equilibrium correspondence
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    0.000000,0.333333,0.333333,0.333333,0.5,0.5

doc/tools.lp.rst

@@ -65,7 +65,7 @@ strategies each, with a unique equilibrium in mixed strategies::
 
    $ gambit-lp 2x2const.nfg
    Compute Nash equilibria by solving a linear program
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1/3,2/3,1/3,2/3

doc/tools.simpdiv.rst

@@ -92,7 +92,7 @@ Computing an equilibrium in mixed strategies of :download:`e02.efg
 
    $ gambit-simpdiv e02.nfg
    Compute Nash equilibria using simplicial subdivision
-   Gambit version 16.4.0, Copyright (C) 1994-2025, The Gambit Project
+   Gambit version 16.4.1, Copyright (C) 1994-2025, The Gambit Project
    This is free software, distributed under the GNU GPL
 
    NE,1,0,0,1,0

gambit.wxs

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
-    <Product Id="8EE11AE3-2B91-4870-895B-44C46D648BD6" Name="Gambit 16" Language="1033" Version="16.4.0" Manufacturer="The Gambit Project" UpgradeCode="135FFB28-DA7C-427C-A3DA-783B805BCC22">
+    <Product Id="8EE11AE3-2B91-4870-895B-44C46D648BD6" Name="Gambit 16" Language="1033" Version="16.4.1" Manufacturer="The Gambit Project" UpgradeCode="135FFB28-DA7C-427C-A3DA-783B805BCC22">
         <Package Description="Gambit" Comments="Software Tools for Game Theory" InstallerVersion="200" Compressed="yes" />
         <Media Id="1" Cabinet="gambit.cab" EmbedCab="yes" />
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pygambit"
-version = "16.4.0"
+version = "16.4.1"
 description = "The package for computation in game theory"
 readme = "src/README.rst"
 requires-python = ">=3.9"