fix release builds (#2746)

.github/workflows/nightly.yml

@@ -18,10 +18,9 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - uses: ./.github/actions/setup-linux
-      - uses: ./.github/actions/build-linux
+      - uses: ./.github/actions/build-linux-release
         with:
-          build-type: release
-          run-tests: false
+          build-backend: ${{ matrix.python-version == '3.10' }}
       - name: Upload mlx artifacts
         uses: actions/upload-artifact@v5
         with:
@@ -54,8 +53,6 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.10", "3.13"]
-    env:
-      MACOSX_DEPLOYMENT_TARGET: "15.0"
     runs-on: [self-hosted, macos]
     steps:
       - uses: actions/checkout@v5
@@ -64,6 +61,17 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - uses: ./.github/actions/build-macos
 
+      - name: Build macOS 15 package
+        uses: ./.github/actions/build-macos-release
+        with:
+          macos-target: 15.0
+          build-backend: ${{ matrix.python-version == '3.10' }}
+      - name: Build macOS 14 package
+        uses: ./.github/actions/build-macos-release
+        with:
+          macos-target: 14.0
+          build-backend: ${{ matrix.python-version == '3.10' }}
+
   build_cuda_with_tests:
     if: github.repository == 'ml-explore/mlx'
     runs-on: gpu-t4-4-core

.github/workflows/release.yml

@@ -53,10 +53,9 @@ jobs:
       - uses: ./.github/actions/setup-linux
         with:
           python-version: ${{ matrix.python_version }}
-      - uses: ./.github/actions/build-linux
+      - uses: ./.github/actions/build-linux-release
         with:
-          build-type: release
-          run-tests: false
+          build-backend: ${{ matrix.python-version == '3.10' }}
       - name: Upload MLX artifacts
         uses: actions/upload-artifact@v5
         with:
@@ -82,10 +81,27 @@ jobs:
       - uses: ./.github/actions/setup-macos
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: ./.github/actions/build-macos
+      - name: Install dependencies
+        shell: sh
+        run: |
+          uv pip install --upgrade pip
+          uv pip install cmake setuptools nanobind==2.4.0
+          uv pip install -e . -v
+      - name: Generate package stubs
+        shell: bash
+        run: |
+          uv pip install typing_extensions
+          uv run --no-project setup.py generate_stubs
+      - name: Build macOS 14 package
+        uses: ./.github/actions/build-macos-release
         with:
-          build-type: release
-          run-tests: false
+          macos-target: 14.0
+          build-backend: ${{ matrix.python-version == '3.10' }}
+      - name: Build macOS 15 package
+        uses: ./.github/actions/build-macos-release
+        with:
+          macos-target: 15.0
+          build-backend: ${{ matrix.python-version == '3.10' }}
       - name: Upload MLX artifacts
         uses: actions/upload-artifact@v5
         with: