From 84db7e4c874fd9165ae8d7c183f670ae9c407cfd Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 10:22:14 -0400
Subject: [PATCH 01/10] try cp313

---
 .github/workflows/wheels.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 8d61145a..74e86ae3 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -29,7 +29,7 @@ jobs:
       matrix:
         os: [ubuntu-24.04, ubuntu-24.04-arm, macos-14, macos-13, windows-latest]  # Use specific versions for clarity
         arch: [x86_64, arm64]
-        pybuilds: [cp38, cp39, cp310, cp311, cp312] # Define pybuilds at the top level
+        pybuilds: [cp313] # Define pybuilds at the top level
         exclude:
           - os: ubuntu-24.04-arm  # No need to specify arch, it's already implicit
             arch: x86_64  # Exclude x86_64 on ARM

From d58699a72071c1dc0e9a4b3e90c6cf495a9f1f46 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 10:52:47 -0400
Subject: [PATCH 02/10] try again

---
 .github/workflows/wheels.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 74e86ae3..da6a08f1 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -46,7 +46,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: '3.13'
       - run: pip install cibuildwheel==2.23.0
       - run: python -m cibuildwheel --output-dir wheelhouse
         env:

From 71701fff0266fff1572ddf0551128ab77f0eca5f Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 13:18:41 -0400
Subject: [PATCH 03/10] try some stuff from drjit

---
 .github/workflows/wheels.yml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index da6a08f1..4980a664 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -48,9 +48,22 @@ jobs:
         with:
           python-version: '3.13'
       - run: pip install cibuildwheel==2.23.0
+      
+      ################################################################
+      # Set up envvars to build the correct wheel (stable ABI or not)
+      ################################################################
+      - name: Prepare cibuildwheel environment (UNIX)
+        if: ${{ runner.os != 'Windows' }}
+        run: |
+          echo "CIBW_BUILD=${{ matrix.pybuilds }}-*" >> $GITHUB_ENV
+
+      - name: Prepare cibuildwheel environment (Windows)
+        if: ${{ runner.os == 'Windows' }}
+        run: |
+          echo "CIBW_BUILD=${{ matrix.pybuilds }}-*" >> $env:GITHUB_ENV
+
       - run: python -m cibuildwheel --output-dir wheelhouse
         env:
-          CIBW_BUILD: "${{ matrix.pybuilds }}-*"  # Use matrix.pybuilds and matrix.arch
           CIBW_ARCHS_MACOS: ${{ matrix.arch }}
           CIBW_SKIP: "cp*-manylinux_i686 cp*-musllinux* cp*-win32"
       - name: Upload Artifact

From 27b02b58bf86d7e1a89514d967c032e4211a6bd1 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 13:22:36 -0400
Subject: [PATCH 04/10] change in pypro; revert wheels

---
 .github/workflows/wheels.yml | 15 +--------------
 pyproject.toml               |  2 +-
 2 files changed, 2 insertions(+), 15 deletions(-)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 4980a664..da6a08f1 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -48,22 +48,9 @@ jobs:
         with:
           python-version: '3.13'
       - run: pip install cibuildwheel==2.23.0
-      
-      ################################################################
-      # Set up envvars to build the correct wheel (stable ABI or not)
-      ################################################################
-      - name: Prepare cibuildwheel environment (UNIX)
-        if: ${{ runner.os != 'Windows' }}
-        run: |
-          echo "CIBW_BUILD=${{ matrix.pybuilds }}-*" >> $GITHUB_ENV
-
-      - name: Prepare cibuildwheel environment (Windows)
-        if: ${{ runner.os == 'Windows' }}
-        run: |
-          echo "CIBW_BUILD=${{ matrix.pybuilds }}-*" >> $env:GITHUB_ENV
-
       - run: python -m cibuildwheel --output-dir wheelhouse
         env:
+          CIBW_BUILD: "${{ matrix.pybuilds }}-*"  # Use matrix.pybuilds and matrix.arch
           CIBW_ARCHS_MACOS: ${{ matrix.arch }}
           CIBW_SKIP: "cp*-manylinux_i686 cp*-musllinux* cp*-win32"
       - name: Upload Artifact
diff --git a/pyproject.toml b/pyproject.toml
index d399c9e6..2de8d13d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ minimum-version = "build-system.requires"
 build-dir = "build/{wheel_tag}"
 
 # Build stable ABI wheels for CPython 3.12+
-wheel.py-api = "cp312"
+wheel.py-api = false
 
 [tool.scikit-build.cmake]
 build-type = "Release"

From 8ba3c444aae8dcbce11a680b761655ceb8dc9f28 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 13:24:20 -0400
Subject: [PATCH 05/10] 313

---
 pyproject.toml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 2de8d13d..faf4f467 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,8 +39,9 @@ minimum-version = "build-system.requires"
 # Setuptools-style build caching in a local directory
 build-dir = "build/{wheel_tag}"
 
-# Build stable ABI wheels for CPython 3.12+
-wheel.py-api = false
+# Build stable ABI wheels for CPython 3.13+
+wheel.py-api = "cp313"
+
 
 [tool.scikit-build.cmake]
 build-type = "Release"

From c7a138d801169faed0a33aff472bc99e89a4f400 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 13:37:29 -0400
Subject: [PATCH 06/10] revert but enable STABLE_ABI in nanobind_add_module

---
 .github/workflows/wheels.yml |  4 ++--
 CMakeLists.txt               | 15 +++++++--------
 pyproject.toml               |  4 ++--
 3 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index da6a08f1..d56525f0 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -29,7 +29,7 @@ jobs:
       matrix:
         os: [ubuntu-24.04, ubuntu-24.04-arm, macos-14, macos-13, windows-latest]  # Use specific versions for clarity
         arch: [x86_64, arm64]
-        pybuilds: [cp313] # Define pybuilds at the top level
+        pybuilds: [cp312] # Define pybuilds at the top level
         exclude:
           - os: ubuntu-24.04-arm  # No need to specify arch, it's already implicit
             arch: x86_64  # Exclude x86_64 on ARM
@@ -46,7 +46,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.13'
+          python-version: '3.12'
       - run: pip install cibuildwheel==2.23.0
       - run: python -m cibuildwheel --output-dir wheelhouse
         env:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5b9251f..b8d4369d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,13 +14,9 @@ set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15")
 # <20 for embree
 set(CMAKE_CXX_STANDARD 17)
 
-if (CMAKE_VERSION VERSION_LESS 3.18)
-  set(DEV_MODULE Development)
-else()
-  set(DEV_MODULE Development.Module)
-endif()
-
-find_package(Python 3.8 COMPONENTS Interpreter ${DEV_MODULE} REQUIRED)
+find_package(Python 3.8
+  REQUIRED COMPONENTS Interpreter Development.Module
+  OPTIONAL_COMPONENTS Development.SABIModule)
 
 if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
   set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
@@ -125,7 +121,10 @@ function(pyigl_include prefix name)
     file(WRITE "${generated_dir}/BINDING_INVOCATIONS.in" "${BINDING_INVOCATIONS}")
 
     set(target_name "pyigl${prefix_lc}_${name}")
-    nanobind_add_module(${target_name} ${sources})
+    nanobind_add_module(
+      ${target_name} 
+      STABLE_ABI
+      ${sources})
 
     # important for scikit-build
     install(TARGETS ${target_name} LIBRARY DESTINATION  "igl/${subpath}")
diff --git a/pyproject.toml b/pyproject.toml
index faf4f467..c8750a18 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,8 +39,8 @@ minimum-version = "build-system.requires"
 # Setuptools-style build caching in a local directory
 build-dir = "build/{wheel_tag}"
 
-# Build stable ABI wheels for CPython 3.13+
-wheel.py-api = "cp313"
+# Build stable ABI wheels for CPython 3.12+
+wheel.py-api = "cp312"
 
 
 [tool.scikit-build.cmake]

From 8f7398dbde3dfb97067d61721779dd13602fcd54 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 14:25:05 -0400
Subject: [PATCH 07/10] inc version

---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 1cb3af3d..7672d373 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "libigl"
-version = "2.6.0"
+version = "2.6.1"
 description = "libigl: A simple C++ geometry processing library"
 readme = "README.md"
 requires-python = ">=3.8"

From f69388ab60e33f39b2a241fad6c2733535f28991 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 14:26:12 -0400
Subject: [PATCH 08/10] name [skip ci]

---
 .github/workflows/wheels.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index d56525f0..621a74be 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -41,6 +41,8 @@ jobs:
             arch: arm64   # Exclude arm64 on macOS 13
           - os: macos-13
             pybuilds: cp38
+    name: >
+      ${{ matrix.pybuilds }} ${{ matrix.os }} ${{ matrix.arch }}
 
     steps:
       - uses: actions/checkout@v4

From 4b24e6de0e28599f679210e73bab268633191121 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 14:27:17 -0400
Subject: [PATCH 09/10] bump

---
 .github/workflows/wheels.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 621a74be..264995ff 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -41,6 +41,7 @@ jobs:
             arch: arm64   # Exclude arm64 on macOS 13
           - os: macos-13
             pybuilds: cp38
+
     name: >
       ${{ matrix.pybuilds }} ${{ matrix.os }} ${{ matrix.arch }}
 

From 927dc2f6379dfbc1a1a64e2411cc1f0b9a937ff0 Mon Sep 17 00:00:00 2001
From: Alec Jacobson <alecjacobson@gmail.com>
Date: Thu, 15 May 2025 14:40:43 -0400
Subject: [PATCH 10/10] add back all the others

---
 .github/workflows/wheels.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 264995ff..9a200e6c 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -29,7 +29,7 @@ jobs:
       matrix:
         os: [ubuntu-24.04, ubuntu-24.04-arm, macos-14, macos-13, windows-latest]  # Use specific versions for clarity
         arch: [x86_64, arm64]
-        pybuilds: [cp312] # Define pybuilds at the top level
+        pybuilds: [cp38, cp39, cp310, cp311, cp312] # Define pybuilds at the top level
         exclude:
           - os: ubuntu-24.04-arm  # No need to specify arch, it's already implicit
             arch: x86_64  # Exclude x86_64 on ARM