diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..ce60bd6e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,273 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - '*'
+  pull_request:
+    branches:
+      - master
+jobs:
+  build-mex:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04,windows-2019,macos-12,macos-14]
+    steps:
+    - name: Retrieve the source code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Install MATLAB
+      uses: matlab-actions/setup-matlab@v2
+      with:
+        release: ${{ matrix.os == 'macos-14' && 'R2023b' || ( matrix.os == 'windows-2019' && 'R2021b' || 'R2021a' ) }}
+    - name: Build MEX files
+      uses: matlab-actions/run-command@v2
+      with:
+        command: "cd lib; mex cvx_eliminate_mex.c; mex cvx_bcompress_mex.c; cd ..; cvx_setup -exit-if"
+    - name: Upload MATLAB MEX files
+      uses: actions/upload-artifact@v4
+      with:
+        name: mex-${{ matrix.os }}
+        path: "lib/*.mex*"
+  build-oct:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04,windows-2019,macos-12,macos-14]
+    steps:
+    - name: Retrieve the source code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Install Octave
+      shell: bash
+      run: |
+        if [ "${{ matrix.os }}" = ubuntu-20.04 ]; then
+          sudo apt update
+          sudo snap install octave
+          sudo apt install --no-install-recommends libopenblas-dev
+          echo "OCTAVE=snap run octave" >>$GITHUB_ENV
+        elif [ "${{ matrix.os }}" = windows-2019 ]; then
+          choco install octave.portable
+        else
+          brew install octave
+          echo "OCTAVE=octave" >>$GITHUB_ENV
+        fi
+    - name: Build MEX files (Unix)
+      if: matrix.os != 'windows-2019'
+      run: $OCTAVE --eval "cd lib; mex cvx_eliminate_mex.c; mex cvx_bcompress_mex.c"
+    - name: Build Mex files (Windows)
+      if: matrix.os == 'windows-2019'
+      shell: cmd
+      run: |
+        set PATH=C:\ProgramData\chocolatey\bin;%PATH%
+        octave-cli.exe --no-gui --eval "cd lib; mex cvx_eliminate_mex.c; mex cvx_bcompress_mex.c"
+        if %errorlevel% neq 0 exit /b %errorlevel%
+    - name: Upload Octave MEX files
+      uses: actions/upload-artifact@v4
+      with:
+        name: oct-${{ matrix.os }}
+        path: "lib/*.mex"
+  package:
+    needs: [build-mex,build-oct]
+    runs-on: ubuntu-latest
+    steps:
+    - name: Retrieve the source code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Compile the docs
+      run: |
+        sudo apt update
+        sudo apt install latexmk texlive-latex-recommended texlive-latex-extra tex-gyre make
+        source $CONDA/bin/activate
+        conda install -c defaults -c conda-forge sphinx cloud_sptheme
+        pushd doc
+        sphinx-build -b latex -d _build/doctrees . _build/latex
+        sphinx-build -b html -d _build/doctrees . _build/html
+        pushd _build/latex
+        latexmk -pdf CVX.tex
+        popd
+        popd
+        mv doc _doc
+        mkdir doc
+        mv _doc/_build/{html,latex/CVX.pdf} doc/
+        rm -rf _doc
+    - name: Extract version info
+      run: |
+        /bin/echo -n Extracting and updating version information...
+        DESCR=$(git describe --long)
+        VERSION=$(echo "$DESCR" | cut -d '-' -f 1)
+        BUILD=$(echo "$DESCR" | cut -d '-' -f 2)
+        BCOMMIT=$(echo "$DESCR" | cut -d '-' -f 3 | sed 's@^g@@')
+        BDATE=$(git log -n1 --pretty=%ad --date=local)
+        MONTH=`date +%B`
+        MONBIB=`date +%b | tr [:upper:] [:lower:]`
+        YEAR=`date +%Y`
+        echo done.
+        echo "Version $DESCR, $MONTH $YEAR"
+        sed "s@cvx_bld *= *'[^']*'@cvx_bld = '$BUILD'@;s@cvx_bdate *= *'[^']*'@cvx_bdate = '$BDATE'@;s@cvx_bcomm *= *'[^']*'@cvx_bcomm = '$BCOMMIT'@" cvx_version.m > cvx_version.new
+        mv -f cvx_version.new cvx_version.m
+    - name: Retrieve artifacts
+      uses: actions/download-artifact@v4
+    - name: Move artifacts into place
+      run: |
+        mkdir -p lib/o_lin  && mv oct-ubuntu-*/* lib/o_lin/
+        mkdir -p lib/o_win  && mv oct-windows-*/* lib/o_win/
+        mkdir -p lib/o_maci && mv oct-macos-12/* lib/o_maci/
+        mkdir -p lib/o_maca && mv oct-macos-14/* lib/o_maca/
+        mv mex-*/* lib/
+        rmdir mex-* oct-*
+    - name: Download solvers
+      run: |
+        rm -rf sdpt3 sedumi || :
+        for url in $(grep -v ^# solvers.txt); do
+          echo "Downloading: $url"
+          curl -OL $url
+          fname=${url##*/}
+          echo "Unpacking: $fname"
+          tar xfz $fname
+          rm $fname
+        done
+        rm -rf solvers.txt .gitignore .git .github */.gitignore
+    - name: Show files, build archives
+      run: |
+        GCOM="^\.\\|^doc/\\|^examples/"
+        find . -type d | sed 's@^\./\(.*\)@\1/@' | grep -v $GCOM | sort -f >MANIFEST
+        find . \! -type d | sed 's@^\./@@' | grep -v $GCOM | sort -f >>MANIFEST
+        cd ..
+        mv CVX cvx
+        zip -r cvx.zip cvx
+        tar cfz cvx.tgz cvx
+        echo "--------"
+        tar tfz cvx.tgz
+        echo "--------"
+        zipinfo cvx.zip
+        echo "--------"
+        mv cvx CVX
+        mv cvx.tgz cvx.zip CVX
+    - name: Upload bundles
+      uses: actions/upload-artifact@v4
+      with:
+        name: bundles
+        path: |
+          cvx.zip
+          cvx.tgz
+  matlab-tests:
+    needs: package
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest,macos-latest,windows-latest,macos-14]
+    steps:
+    - name: Retrieve artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - name: Unpack artifact
+      shell: bash
+      run: |
+        tar xfz cvx.tgz --strip-components=1
+        rm cvx.tgz cvx.zip
+    - name: Install latest MATLAB
+      uses: matlab-actions/setup-matlab@v2
+    - name: Run test
+      uses: matlab-actions/run-command@v2
+      with:
+        command: "cvx_setup -exit-if"
+  octave-tests:
+    needs: package
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest,windows-latest,macos-latest,macos-14]
+    steps:
+    - name: Retrieve artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - name: Unpack artifact
+      shell: bash
+      run: |
+        tar xfz cvx.tgz --strip-components=1
+        rm cvx.tgz cvx.zip
+    - name: Install Octave, Snap, Flatpak
+      shell: bash
+      run: |
+        if [ "${{ matrix.os }}" = ubuntu-latest ]; then
+          sudo apt update
+          sudo apt install --no-install-recommends octave
+        elif [ "${{ matrix.os }}" = windows-latest ]; then
+          choco install octave.portable
+        else
+          brew install octave
+        fi
+    - name: Run test (Unix)
+      shell: bash
+      run: octave --eval "cvx_setup -exit-if"
+    - name: Run test (Windows)
+      if: matrix.os == 'windows-latest'
+      shell: cmd
+      run: |
+        set PATH=C:\ProgramData\chocolatey\bin;%PATH%
+        octave-cli.exe --no-gui --eval "cvx_setup -exit-if"
+  flatpak-test:
+    needs: package
+    runs-on: ubuntu-latest
+    steps:
+    - name: Retrieve artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - name: Unpack artifact
+      run: |
+        tar xfz cvx.tgz --strip-components=1
+        rm cvx.tgz cvx.zip
+    - name: Install Flatpak octave
+      run: |
+        sudo apt update
+        sudo apt install flatpak
+        flatpak remote-add --user --if-not-exists \
+                flathub https://flathub.org/repo/flathub.flatpakrepo
+        flatpak install --user -y flathub org.octave.Octave
+    - name: Run test
+      shell: bash
+      run: flatpak run org.octave.Octave --eval "cvx_setup -exit-if"
+  snap-test:
+    needs: package
+    runs-on: ubuntu-latest
+    steps:
+    - name: Retrieve artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - name: Unpack artifact
+      run: |
+        tar xfz cvx.tgz --strip-components=1
+        rm cvx.tgz cvx.zip
+    - name: Install Flatpak octave
+      run: |
+        sudo snap install octave
+    - name: Run test
+      shell: bash
+      run: snap run octave --eval "cvx_setup -exit-if"
+  publish:
+    needs: [matlab-tests,octave-tests,flatpak-test,snap-test]
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    steps:
+    - name: Retrieve artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - uses: softprops/action-gh-release@v2
+      with:
+        files: |
+          cvx.tgz
+          cvx.zip
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index f6d04ee1..5beac4c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,10 @@
 doc/_build
+sedumi/
+sdpt3/
+sedumi.tgz
+sedumi.zip
+sdpt3.tgz
+sdpt3.zip
+lib/*.mex*
+lib/*/*.mex
 
diff --git a/.gitmodules b/.gitmodules
index 607e8293..e69de29b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +0,0 @@
-[submodule "sedumi"]
-	path = sedumi
-	url = git@github.com:sqlp/sedumi.git
-	branch = pretransfo
-[submodule "sdpt3"]
-	path = sdpt3
-	url = git@github.com:sqlp/sdpt3.git
diff --git a/README.md b/README.md
index ae7564e2..7ac32eb9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,27 @@
 ## CVX: A system for disciplined convex programming
 
+#### [Click here](https://github.com/cvxr/cvx/releases/latest) to download the precompiled bundle from this repository. These bundles include the SeDuMi and SDPT3 solvers, as well as pre-compiled MATLAB and Octave MEX files files for Windows, Linux, and macOS (Intel and Apple Silicon).
+
+### IMPORTANT UPDATE
+
+We are working towards making this repository the *official* source
+for CVX, and updating the [download page](http://cvxr.com/cvx/download)
+with links back to this site. This will take a bit more time; but when
+finished, there will be significant benefits:
+
+- Fresh builds of the supporting MEX files for Linux, Windows, macOS
+  Apple Silicon, and macOS Intel will be included.
+- The solver shims for Mosek and Gurobi will be included, without
+  obfuscation, so that anyone with a valid license for these solvers
+  can use CVX, for commercial and non-commercial use.
+- We will be able to slowly enable community contributions to supply
+  bug fixes and improvements. Note that the first of these improvements
+  will need to include improvements to an automatable test suite to
+  help insure that changes do not introduce regressions.
+
+Please stay tuned, here and on the [web site](http://cvxr.com/cvx),
+for further developments.
+
 ### Introduction
 
 CVX is a Matlab package for convex optimizaton.
diff --git a/cvx_setup.m b/cvx_setup.m
index 1645a530..361fc9bb 100644
--- a/cvx_setup.m
+++ b/cvx_setup.m
@@ -19,6 +19,7 @@ function cvx_setup( varargin )
     
     cvx_version( '-install', varargin{:} );
     if ~isfield( cvx___, 'loaded' ) || ~cvx___.loaded, %#ok
+        if cvx___.exit_if, exit(-1); end        
         error( 'CVX:Expected', 'Error detected by cvx_version' );
     end
     isoctave = cvx___.isoctave;
@@ -151,6 +152,7 @@ function cvx_setup( varargin )
             'No valid solvers were found. This suggests a corrupt installation. Please\n', ...
             'try re-installing the files and re-running cvx_setup. If the same error\n', ...
             'occurs, please contact CVX support.\n' ] );
+        if cvx___.exit_if, exit(-1); end
         error('CVX:Unexpected','No valid solvers were found.');
     end
     solvers = solvers(cellfun(@isempty,{solvers.error}));
@@ -179,6 +181,7 @@ function cvx_setup( varargin )
     
     cvx_global;
     if isempty( cvx___.solvers.list ),
+        if cvx___.exit_if, exit(-1); end
         error('CVX:Unexpected','No valid solvers were found.');
     end
     
diff --git a/cvx_version.m b/cvx_version.m
index e776fb68..cb2a3def 100644
--- a/cvx_version.m
+++ b/cvx_version.m
@@ -12,6 +12,7 @@
 
 args = varargin;
 compile = false;
+exit_if = false;
 quick = nargout > 0;
 if nargin
     if ~ischar( args{1} ),
@@ -23,9 +24,13 @@
         tt = strcmp( args, '-compile' );
         compile = any( tt );
         if compile, quick = false; args(tt) = []; end
+        tt = strcmp( args, '-exit-if' );
+        exit_if = any( tt );
+        if exit_if, quick = false; args(tt) = []; end
     end
 end
 
+cvx___.exit_if = exit_if;
 if isfield( cvx___, 'loaded' ),
     
     if quick, return; end
@@ -39,32 +44,25 @@
     isoctave = exist( 'OCTAVE_VERSION', 'builtin' );
 
     % File and path separators, MEX extension
+    comp = computer;
     if isoctave,
-        comp = octave_config_info('canonical_host_type');
         mext = 'mex';
         izpc = false;
         izmac = false;
-        if octave_config_info('mac'),
-            msub = 'mac';
-            izmac = true;
-        elseif octave_config_info('windows'),
-            msub = 'win';
-            izpc = true;
-        elseif octave_config_info('unix') && any(strfind(comp,'linux')),
-            msub = 'lin';
-        else
-            msub = 'unknown';
-        end
-        if ~isempty( msub ),
-            msub = [ 'o_', msub ];
-            if strncmp( comp, 'x86_64', 6 ),
-                msub = [ msub, '64' ];
-            else
-                msub = [ msub, '32' ];
-            end
+        switch comp
+        case 'x86_64-pc-linux-gnu'
+            msub = 'o_lin';
+        case 'x86_64-apple-darwin21.6.0'
+            msub = 'o_maci';
+        case 'aarch64-apple-darwin23.4.0'
+            msub = 'o_maca';
+        case 'x86_64-w64-mingw32'
+            msub = 'o_win';
+        otherwise
+            warning(sprintf('Unexpected Octave computer type: %s', COMPUTER));
+            msub = '';
         end
     else
-        comp = computer;
         izpc = strncmp( comp, 'PC', 2  );
         izmac = strncmp( comp, 'MAC', 3 );
         mext = mexext;
@@ -143,7 +141,7 @@
 line = '---------------------------------------------------------------------------';
 fprintf( '\n%s\n', line );
 fprintf( 'CVX: Software for Disciplined Convex Programming       (c)2014 CVX Research\n' );
-fprintf( 'Version %3s, Build %4s (%7s)%42s\n', cvx_ver, cvx_bld, cvx_bcomm, cvx_bdate );
+fprintf( 'Version %3s, Build %3s (%7s)%42s\n', cvx_ver, cvx_bld, cvx_bcomm, cvx_bdate );
 fprintf( '%s\n', line );
 fprintf( 'Installation info:\n    Path: %s\n', cvx___.where );
 if isoctave,
@@ -317,6 +315,8 @@
 
 if ~issue,
     cvx___.loaded = true;
+elseif exit_if,
+    exit(1)
 end
 clear fs;
 fprintf( '%s\n', line );
diff --git a/doc/conf.py b/doc/conf.py
index 76226910..d57cf47e 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -116,7 +116,7 @@
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-html_logo = 'cvxrlogo.png'
+html_logo = '_static/cvxrlogo.png'
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -178,7 +178,7 @@
 latex_elements = {
 	'papersize': 'letterpaper',
 	'pointsize': '11pt',
-	'preamble': '\usepackage{amsmath,amssymb}',
+	'preamble': r'\usepackage{amsmath,amssymb}',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples
diff --git a/lib/cvx_bcompress_mex.mexa64 b/lib/cvx_bcompress_mex.mexa64
deleted file mode 100755
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deleted file mode 100644
index 483c422c..00000000
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deleted file mode 100755
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deleted file mode 100755
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deleted file mode 100755
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diff --git a/lib/o_mac64/cvx_bcompress_mex.mex b/lib/o_mac64/cvx_bcompress_mex.mex
deleted file mode 100755
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deleted file mode 100755
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diff --git a/sdpt3 b/sdpt3
deleted file mode 160000
index 3b880163..00000000
--- a/sdpt3
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 3b880163eba732c396a1a346dac4a350a259249a
diff --git a/sedumi b/sedumi
deleted file mode 160000
index e422895d..00000000
--- a/sedumi
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit e422895d47992b2f89b3f69b59bb78834fc923fa
diff --git a/solvers.txt b/solvers.txt
new file mode 100644
index 00000000..59daab2a
--- /dev/null
+++ b/solvers.txt
@@ -0,0 +1,5 @@
+# These are the URLs of the SDPT3 and SeDuMi bundles to include.
+# We have stopped using submodules because the MEX files are no
+# longer checked into Git; instead, they are built by CI processes
+https://github.com/sqlp/sedumi/releases/download/v1.3.8/sedumi.tgz
+https://github.com/sqlp/sdpt3/releases/download/4.0-20240410/sdpt3.tgz