chore: update ferro-ta version to 1.1.3

- Bumped version numbers across Cargo.toml, Cargo.lock, pyproject.toml, and conda/meta.yaml to 1.1.3. - Added new features including American option pricing, digital options, extended Greeks, and historical volatility estimators. - Enhanced documentation and tests for new functionalities. - Updated CHANGELOG.md to reflect changes for version 1.1.3.
2026-04-02 16:30:45 +05:30
40 changed files with 519 additions and 1930 deletions
@@ -34,14 +34,3 @@ updates:
    labels:
      - "dependencies"
      - "github-actions"
-
-  # WASM JavaScript package
-  - package-ecosystem: "npm"
-    directory: "/wasm"
-    schedule:
-      interval: "weekly"
-      day: "monday"
-    open-pull-requests-limit: 5
-    labels:
-      - "dependencies"
-      - "javascript"
@@ -87,7 +87,7 @@ jobs:
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
-        uses: actions/deploy-pages@v5
+        uses: actions/deploy-pages@v4

  # -------------------------------------------------------------------------
  # CI gate — all required jobs must pass before this job succeeds.
@@ -136,123 +136,88 @@ jobs:
  # Keep release jobs here because trusted-publisher configuration points to
  # CI.yml specifically.
  # -------------------------------------------------------------------------
-  # One abi3 wheel per (platform, arch). abi3-py310 means a single wheel
-  # covers CPython 3.10+ on each target, so there is no python-version axis.
-  # extension-module + abi3 link no libpython, which is what lets the linux
-  # jobs cross-compile aarch64/musl from an x86_64 runner via maturin-action.
-
  build-wheels-linux:
-    name: Build wheels (linux-gnu / ${{ matrix.target }})
+    name: Build wheels (linux / py${{ matrix.python-version }})
    runs-on: ubuntu-latest
    if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && inputs.release)
    strategy:
      fail-fast: false
      matrix:
-        target: [x86_64, aarch64]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]

    steps:
      - uses: actions/checkout@v6

-      - name: Build abi3 manylinux wheel
+      - name: Build wheel
        uses: PyO3/maturin-action@v1
        with:
          command: build
-          target: ${{ matrix.target }}
-          args: --release --out dist
+          args: --release --out dist --compatibility pypi -i python${{ matrix.python-version }}
          manylinux: "2_17"

      - name: Upload wheels as artifact
        uses: actions/upload-artifact@v7
        with:
-          name: wheels-linux-gnu-${{ matrix.target }}
-          path: dist/*.whl
-
-  build-wheels-musllinux:
-    name: Build wheels (linux-musl / ${{ matrix.target }})
-    runs-on: ubuntu-latest
-    if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && inputs.release)
-    strategy:
-      fail-fast: false
-      matrix:
-        target: [x86_64, aarch64]
-
-    steps:
-      - uses: actions/checkout@v6
-
-      - name: Build abi3 musllinux wheel
-        uses: PyO3/maturin-action@v1
-        with:
-          command: build
-          target: ${{ matrix.target }}
-          args: --release --out dist
-          manylinux: musllinux_1_2
-
-      - name: Upload wheels as artifact
-        uses: actions/upload-artifact@v7
-        with:
-          name: wheels-linux-musl-${{ matrix.target }}
+          name: wheels-linux-py${{ matrix.python-version }}
          path: dist/*.whl

  build-wheels-macos:
-    name: Build wheels (macos / universal2)
+    name: Build wheels (macos / py${{ matrix.python-version }})
    runs-on: macos-latest
    if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && inputs.release)
-    steps:
-      - uses: actions/checkout@v6
-
-      - name: Set up Python
-        uses: actions/setup-python@v6
-        with:
-          python-version: "3.10"
-
-      - name: Build universal2 abi3 wheel
-        uses: PyO3/maturin-action@v1
-        with:
-          command: build
-          target: universal2-apple-darwin
-          args: --release --out dist
-
-      - name: Upload wheels as artifact
-        uses: actions/upload-artifact@v7
-        with:
-          name: wheels-macos-universal2
-          path: dist/*.whl
-
-  build-wheels-windows:
-    name: Build wheels (windows / ${{ matrix.platform.arch }})
-    runs-on: ${{ matrix.platform.runner }}
-    if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && inputs.release)
    strategy:
      fail-fast: false
      matrix:
-        platform:
-          - runner: windows-latest
-            arch: x64
-            target: x64
-          - runner: windows-11-arm
-            arch: arm64
-            target: aarch64
+        python-version: ["3.10", "3.11", "3.12", "3.13"]

    steps:
      - uses: actions/checkout@v6

-      - name: Set up Python
+      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v6
        with:
-          python-version: "3.11"
-          architecture: ${{ matrix.platform.arch }}
+          python-version: ${{ matrix.python-version }}

-      - name: Build abi3 wheel
+      - name: Build universal2 wheel
        uses: PyO3/maturin-action@v1
        with:
          command: build
-          target: ${{ matrix.platform.target }}
-          args: --release --out dist
+          args: --release --out dist --compatibility pypi -i python
+          target: universal2-apple-darwin

      - name: Upload wheels as artifact
        uses: actions/upload-artifact@v7
        with:
-          name: wheels-windows-${{ matrix.platform.arch }}
+          name: wheels-macos-py${{ matrix.python-version }}
+          path: dist/*.whl
+
+  build-wheels-windows:
+    name: Build wheels (windows / py${{ matrix.python-version }})
+    runs-on: windows-latest
+    if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && inputs.release)
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Build wheel
+        uses: PyO3/maturin-action@v1
+        with:
+          command: build
+          args: --release --out dist --compatibility pypi -i python
+
+      - name: Upload wheels as artifact
+        uses: actions/upload-artifact@v7
+        with:
+          name: wheels-windows-py${{ matrix.python-version }}
          path: dist/*.whl

  build-sdist:
@@ -282,7 +247,6 @@ jobs:
    runs-on: ubuntu-latest
    needs:
      - build-wheels-linux
-      - build-wheels-musllinux
      - build-wheels-macos
      - build-wheels-windows
      - build-sdist
@@ -292,8 +256,6 @@ jobs:
      url: https://pypi.org/p/ferro-ta
    permissions:
      id-token: write
-      attestations: write
-      contents: read
    steps:
      - name: Download all wheels
        uses: actions/download-artifact@v8
@@ -308,11 +270,6 @@ jobs:
          name: sdist
          path: dist

-      - name: Generate SLSA build provenance attestations
-        uses: actions/attest-build-provenance@v2
-        with:
-          subject-path: "dist/*"
-
      - name: Verify distribution coverage
        run: |
          python3 - <<'PY'
@@ -326,15 +283,19 @@ jobs:
          for name in files:
              print(f" - {name}")

-          # One abi3 wheel (cp310-abi3) per platform/arch — covers CPython 3.10+.
          expected = [
-              "ferro_ta-*-cp310-abi3-manylinux*_x86_64.whl",
-              "ferro_ta-*-cp310-abi3-manylinux*_aarch64.whl",
-              "ferro_ta-*-cp310-abi3-musllinux*_x86_64.whl",
-              "ferro_ta-*-cp310-abi3-musllinux*_aarch64.whl",
-              "ferro_ta-*-cp310-abi3-macosx*_universal2.whl",
-              "ferro_ta-*-cp310-abi3-win_amd64.whl",
-              "ferro_ta-*-cp310-abi3-win_arm64.whl",
+              "ferro_ta-*-cp310-cp310-manylinux*_x86_64.whl",
+              "ferro_ta-*-cp311-cp311-manylinux*_x86_64.whl",
+              "ferro_ta-*-cp312-cp312-manylinux*_x86_64.whl",
+              "ferro_ta-*-cp313-cp313-manylinux*_x86_64.whl",
+              "ferro_ta-*-cp310-cp310-win_amd64.whl",
+              "ferro_ta-*-cp311-cp311-win_amd64.whl",
+              "ferro_ta-*-cp312-cp312-win_amd64.whl",
+              "ferro_ta-*-cp313-cp313-win_amd64.whl",
+              "ferro_ta-*-cp310-cp310-macosx*_universal2.whl",
+              "ferro_ta-*-cp311-cp311-macosx*_universal2.whl",
+              "ferro_ta-*-cp312-cp312-macosx*_universal2.whl",
+              "ferro_ta-*-cp313-cp313-macosx*_universal2.whl",
              "ferro_ta-*.tar.gz",
          ]

@@ -385,7 +346,6 @@ jobs:
    permissions:
      contents: write
      id-token: write
-      attestations: write
    steps:
      - uses: actions/checkout@v6

@@ -420,40 +380,12 @@ jobs:
      - name: Generate Rust SBOM (CycloneDX)
        run: cargo cyclonedx --format json --override-filename ferro-ta-rust-sbom.cdx

-      - name: Validate SBOMs (schema check)
-        run: |
-          python3 -c "import json, sys; json.load(open('ferro-ta-python-sbom.spdx.json')); print('Python SBOM valid JSON')"
-          python3 -c "import json, sys; data=json.load(open('ferro-ta-rust-sbom.cdx.json')); assert data.get('bomFormat')=='CycloneDX', 'not CycloneDX'; print('Rust SBOM valid CycloneDX')"
-
-      - name: Install cosign
-        uses: sigstore/cosign-installer@v3
-
-      - name: Sign SBOMs with cosign (keyless)
-        env:
-          COSIGN_EXPERIMENTAL: "1"
-        run: |
-          cosign sign-blob --yes ferro-ta-python-sbom.spdx.json --output-signature ferro-ta-python-sbom.spdx.json.sig --output-certificate ferro-ta-python-sbom.spdx.json.pem
-          cosign sign-blob --yes ferro-ta-rust-sbom.cdx.json     --output-signature ferro-ta-rust-sbom.cdx.json.sig     --output-certificate ferro-ta-rust-sbom.cdx.json.pem
-
-      - name: Attest SBOM provenance
-        uses: actions/attest-build-provenance@v2
-        with:
-          subject-path: |
-            ferro-ta-python-sbom.spdx.json
-            ferro-ta-rust-sbom.cdx.json
-
      - name: Upload Python SBOM to release
-        uses: softprops/action-gh-release@v3
+        uses: softprops/action-gh-release@v2
        with:
-          files: |
-            ferro-ta-python-sbom.spdx.json
-            ferro-ta-python-sbom.spdx.json.sig
-            ferro-ta-python-sbom.spdx.json.pem
+          files: ferro-ta-python-sbom.spdx.json

      - name: Upload Rust SBOM to release
-        uses: softprops/action-gh-release@v3
+        uses: softprops/action-gh-release@v2
        with:
-          files: |
-            ferro-ta-rust-sbom.cdx.json
-            ferro-ta-rust-sbom.cdx.json.sig
-            ferro-ta-rust-sbom.cdx.json.pem
+          files: ferro-ta-rust-sbom.cdx.json
@@ -44,6 +44,6 @@ jobs:

      - name: Upload GitHub Pages artifact
        if: ${{ inputs.upload-pages-artifact }}
-        uses: actions/upload-pages-artifact@v5
+        uses: actions/upload-pages-artifact@v4
        with:
          path: docs/_build/
@@ -7,157 +7,151 @@ permissions:
  contents: read

 jobs:
-  # -------------------------------------------------------------------------
-  # Lint — no Rust, no wheel build, very fast
-  # -------------------------------------------------------------------------
  lint:
    name: Lint (ruff)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v6
        with:
          python-version: "3.12"
-      - run: pip install uv
-      - run: uv run --with ruff ruff check python/ tests/
-      - run: uv run --with ruff ruff format --check python/ tests/

-  # -------------------------------------------------------------------------
-  # Type checking — needs wheel; build once with cache
-  # -------------------------------------------------------------------------
+      - name: Install uv
+        run: pip install uv
+
+      - name: Run ruff check via uv
+        run: uv run --with ruff ruff check python/ tests/
+      - name: Run ruff format check via uv
+        run: uv run --with ruff ruff format --check python/ tests/
+
  typecheck:
    name: Type checking (mypy + pyright)
    runs-on: ubuntu-latest
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
    steps:
      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v6
        with:
          python-version: "3.12"
-      - uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: stable
-      - uses: Swatinem/rust-cache@v2
-      - run: pip install maturin numpy
-      - run: maturin build --release --out dist && pip install dist/*.whl
-      - run: pip install uv
-      - run: uv run --with mypy --with numpy python -m mypy python/ferro_ta --ignore-missing-imports --no-error-summary
-      - run: uv run --with pyright python -m pyright python/ferro_ta

-  # -------------------------------------------------------------------------
-  # Build wheel artifact (once per run, reused by all test matrix entries)
-  # -------------------------------------------------------------------------
-  build-wheel:
-    name: Build wheel (ubuntu / Python ${{ matrix.python-version }})
-    runs-on: ubuntu-latest
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
-    strategy:
-      matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
-    steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
-        with:
-          python-version: ${{ matrix.python-version }}
-      - uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: stable
-      - uses: Swatinem/rust-cache@v2
-        with:
-          shared-key: "wheel-${{ matrix.python-version }}"
-      - run: pip install maturin numpy
-      - run: maturin build --release --out dist
-      - uses: actions/upload-artifact@v7
-        with:
-          name: wheel-${{ matrix.python-version }}
-          path: dist/*.whl
+      - name: Install uv
+        run: pip install uv
+
+      - name: Run mypy on ferro_ta via uv
+        run: uv run --with mypy --with numpy python -m mypy python/ferro_ta --ignore-missing-imports --no-error-summary
+
+      - name: Run pyright on ferro_ta via uv
+        run: uv run --with pyright python -m pyright python/ferro_ta

-  # -------------------------------------------------------------------------
-  # Test matrix — downloads pre-built wheel, no Rust compilation
-  # -------------------------------------------------------------------------
  test:
-    name: Test (Python ${{ matrix.python-version }})
+    name: Test (ubuntu-latest / Python ${{ matrix.python-version }})
    runs-on: ubuntu-latest
-    needs: build-wheel
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13"]
    steps:
      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
        with:
          python-version: ${{ matrix.python-version }}
-      - uses: actions/download-artifact@v8
-        with:
-          name: wheel-${{ matrix.python-version }}
-          path: dist
-      - name: Install wheel + test deps
+
+      - name: Install maturin and test dependencies
        run: |
+          pip install maturin numpy pytest pytest-cov pandas polars hypothesis pyyaml mcp
+
+      - name: Build and install ferro_ta (dev mode)
+        run: |
+          maturin build --release --out dist
          pip install dist/*.whl
-          pip install pytest pytest-cov pandas polars hypothesis pyyaml mcp scipy
-      - name: Run tests with coverage
+
+      - name: Run unit tests with coverage
        run: pytest tests/unit/ tests/integration/ -v --cov=ferro_ta --cov-report=xml --cov-report=term-missing --cov-fail-under=65
+
      - name: Check API manifest is current
        if: matrix.python-version == '3.12'
        run: python scripts/check_api_manifest.py
-      - uses: actions/upload-artifact@v7
+
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v7
        if: matrix.python-version == '3.12'
        with:
          name: coverage-python-${{ matrix.python-version }}
          path: coverage.xml

-  # -------------------------------------------------------------------------
-  # Benchmark vs TA-Lib (downloads wheel from build-wheel job)
-  # -------------------------------------------------------------------------
  benchmark-vs-talib:
    name: Benchmark vs TA-Lib
    runs-on: ubuntu-latest
-    needs: build-wheel
    steps:
      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v6
        with:
          python-version: "3.12"
-      - uses: actions/download-artifact@v8
-        with:
-          name: wheel-3.12
-          path: dist
-      - name: Install TA-Lib C library
+
+      - name: Install TA-Lib C library (Ubuntu)
        run: |
          sudo apt-get update
          sudo apt-get install -y build-essential curl
          curl -sL https://sourceforge.net/projects/ta-lib/files/ta-lib/0.4.0/ta-lib-0.4.0-src.tar.gz/download -o ta-lib-0.4.0-src.tar.gz
          tar -xzf ta-lib-0.4.0-src.tar.gz
-          cd ta-lib && ./configure --prefix=/usr && make && sudo make install && sudo ldconfig
-      - run: pip install dist/*.whl numpy ta-lib
-      - run: python benchmarks/bench_vs_talib.py --sizes 10000 100000 --json benchmark_vs_talib.json
-      - run: python3 benchmarks/check_vs_talib_regression.py --input benchmark_vs_talib.json
-      - uses: actions/upload-artifact@v7
+          cd ta-lib
+          ./configure --prefix=/usr
+          make
+          sudo make install
+          sudo ldconfig
+
+      - name: Install maturin and ta-lib Python package
+        run: |
+          pip install maturin numpy
+          pip install ta-lib
+
+      - name: Build and install ferro_ta
+        run: |
+          maturin build --release --out dist
+          pip install dist/*.whl
+
+      - name: Run benchmark comparison
+        run: |
+          python benchmarks/bench_vs_talib.py --sizes 10000 100000 --json benchmark_vs_talib.json
+
+      - name: Enforce benchmark regression policy
+        run: python3 benchmarks/check_vs_talib_regression.py --input benchmark_vs_talib.json
+
+      - name: Upload benchmark results
+        uses: actions/upload-artifact@v7
        with:
          name: benchmark-vs-talib
          path: benchmark_vs_talib.json

-  # -------------------------------------------------------------------------
-  # Performance smoke (downloads wheel from build-wheel job)
-  # -------------------------------------------------------------------------
  perf-smoke:
    name: Performance smoke and contracts
    runs-on: ubuntu-latest
-    needs: build-wheel
    steps:
      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v6
        with:
          python-version: "3.12"
-      - uses: actions/download-artifact@v8
-        with:
-          name: wheel-3.12
-          path: dist
-      - run: pip install dist/*.whl numpy pytest
-      - run: |
+
+      - name: Install maturin and perf dependencies
+        run: |
+          pip install maturin numpy pytest
+
+      - name: Build and install ferro_ta
+        run: |
+          maturin build --release --out dist
+          pip install dist/*.whl
+
+      - name: Generate reproducible perf artifacts
+        run: |
          python benchmarks/run_perf_contract.py \
            --output-dir perf-contract \
            --skip-talib \
@@ -167,8 +161,12 @@ jobs:
            --streaming-bars 20000 \
            --price-bars 20000 \
            --iv-bars 50000
-      - run: python benchmarks/check_hotspot_regression.py --input perf-contract/runtime_hotspots.json
-      - uses: actions/upload-artifact@v7
+
+      - name: Enforce hotspot regression policy
+        run: python benchmarks/check_hotspot_regression.py --input perf-contract/runtime_hotspots.json
+
+      - name: Upload perf artifacts
+        uses: actions/upload-artifact@v7
        with:
          name: perf-contract
          path: perf-contract/
@@ -7,119 +7,102 @@ permissions:
  contents: read

 jobs:
-  # -------------------------------------------------------------------------
-  # cargo-deny — uses the official pre-built action (no cargo install needed)
-  # -------------------------------------------------------------------------
-  cargo-deny:
-    name: cargo deny check
+  audit:
+    name: Dependency audit (cargo + pip)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
-      - uses: EmbarkStudios/cargo-deny-action@v2

-  # -------------------------------------------------------------------------
-  # pip-audit + uv.lock freshness check (lightweight, no Rust needed)
-  # -------------------------------------------------------------------------
-  pip-audit:
-    name: pip-audit + uv.lock check
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - name: Install cargo-audit and run cargo audit
+        run: |
+          cargo install cargo-audit
+          cargo audit
+
+      - name: Install cargo-deny and run cargo deny check
+        run: |
+          cargo install cargo-deny --locked
+          cargo deny check
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v6
        with:
          python-version: "3.12"
-      - run: pip install uv
-      - run: uv run --with pip-audit pip-audit --skip-editable
-      - run: uv lock --check

-  # -------------------------------------------------------------------------
-  # fmt + clippy (with Rust cache so subsequent runs skip recompilation)
-  # -------------------------------------------------------------------------
-  rust-lint:
-    name: Rust fmt + clippy
+      - name: Install uv
+        run: pip install uv
+
+      - name: Install pip-audit via uv and run pip-audit
+        run: uv run --with pip-audit pip-audit --skip-editable
+
+      - name: Verify uv.lock is up-to-date
+        run: uv lock --check
+
+  rust:
+    name: Rust (fmt + clippy)
    runs-on: ubuntu-latest
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
          components: rustfmt, clippy
-      - uses: Swatinem/rust-cache@v2
      - run: cargo fmt --all -- --check
      - run: cargo clippy --release -- -D warnings
-      - name: Verify benchmarks compile
+      - name: Verify benchmarks compile (ferro_ta_core)
        run: cargo bench -p ferro_ta_core --no-run

-  # -------------------------------------------------------------------------
-  # Build + test ferro_ta_core (with Rust cache)
-  # -------------------------------------------------------------------------
  rust-core:
-    name: Rust core (build + test)
+    name: Rust core library (ferro_ta_core)
    runs-on: ubuntu-latest
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
-      - uses: Swatinem/rust-cache@v2
-      - run: cargo build -p ferro_ta_core
-      - run: cargo test -p ferro_ta_core
+      - name: Build core crate
+        run: cargo build -p ferro_ta_core
+      - name: Test core crate
+        run: cargo test -p ferro_ta_core

-  # -------------------------------------------------------------------------
-  # Coverage (optional, cached)
-  # -------------------------------------------------------------------------
  rust-coverage:
-    name: Rust coverage (tarpaulin)
+    name: Rust coverage (tarpaulin, optional)
    runs-on: ubuntu-latest
    continue-on-error: true
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
-      - uses: Swatinem/rust-cache@v2
-      - uses: taiki-e/install-action@v2
-        with:
-          tool: cargo-tarpaulin
-      - run: cargo tarpaulin -p ferro_ta_core --out Xml --output-dir coverage/
-      - uses: actions/upload-artifact@v7
+      - name: Install cargo-tarpaulin
+        run: cargo install cargo-tarpaulin --locked
+      - name: Collect Rust coverage (ferro_ta_core)
+        run: cargo tarpaulin -p ferro_ta_core --out Xml --output-dir coverage/
+      - name: Upload Rust coverage artifact
+        uses: actions/upload-artifact@v7
        with:
          name: rust-coverage
          path: coverage/
          if-no-files-found: ignore

-  # -------------------------------------------------------------------------
-  # Fuzz (optional, nightly, cached)
-  # -------------------------------------------------------------------------
  fuzz:
-    name: Fuzz targets (short CI run)
+    name: Fuzz targets (short CI run, optional)
    runs-on: ubuntu-latest
    continue-on-error: true
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: nightly
-          targets: x86_64-unknown-linux-gnu
-      - uses: Swatinem/rust-cache@v2
-      - uses: taiki-e/install-action@v2
-        with:
-          tool: cargo-fuzz
+      - name: Install cargo-fuzz
+        run: cargo install cargo-fuzz --locked
      - name: Run fuzz_sma (10000 iterations)
        working-directory: fuzz
-        run: cargo fuzz run fuzz_sma --target x86_64-unknown-linux-gnu -- -runs=10000 -max_len=512
+        run: cargo fuzz run fuzz_sma -- -runs=10000 -max_len=512
      - name: Run fuzz_rsi (10000 iterations)
        working-directory: fuzz
-        run: cargo fuzz run fuzz_rsi --target x86_64-unknown-linux-gnu -- -runs=10000 -max_len=512
-      - uses: actions/upload-artifact@v7
+        run: cargo fuzz run fuzz_rsi -- -runs=10000 -max_len=512
+      - name: Upload fuzz artifacts on crash
+        uses: actions/upload-artifact@v7
        if: always()
        with:
          name: fuzz-artifacts
@@ -8,43 +8,54 @@ permissions:

 jobs:
  wasm:
-    name: WASM (test + build + bench)
+    name: WASM binding (wasm-pack test --node)
    runs-on: ubuntu-latest
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
    steps:
      - uses: actions/checkout@v6
-      - uses: actions/setup-node@v6
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v6
        with:
          node-version: "20"
-      - uses: dtolnay/rust-toolchain@v1
+
+      - name: Install Rust (stable)
+        uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
          targets: wasm32-unknown-unknown
-      - uses: Swatinem/rust-cache@v2
-      - uses: taiki-e/install-action@v2
-        with:
-          tool: wasm-pack
-      - name: Test WASM binding
+
+      - name: Install wasm-pack
+        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
+      - name: Build and test WASM binding
        working-directory: wasm
        run: wasm-pack test --node
-      - name: Build WASM packages (node + web)
+
+      - name: Build WASM package (both targets)
        working-directory: wasm
        run: npm run build
+
      - name: Check API manifest is current
        run: python3 scripts/check_api_manifest.py
-      - name: Benchmark WASM
+
+      - name: Benchmark WASM package
        working-directory: wasm
        run: node bench.js --json ../wasm_benchmark.json
-      - uses: actions/upload-artifact@v7
+
+      - name: Upload WASM node package artifact
+        uses: actions/upload-artifact@v7
        with:
          name: wasm-pkg-node
          path: wasm/node/
-      - uses: actions/upload-artifact@v7
+
+      - name: Upload WASM web package artifact
+        uses: actions/upload-artifact@v7
        with:
          name: wasm-pkg-web
          path: wasm/web/
-      - uses: actions/upload-artifact@v7
+
+      - name: Upload WASM benchmark artifact
+        uses: actions/upload-artifact@v7
        with:
          name: wasm-benchmark
          path: wasm_benchmark.json
@@ -1,100 +0,0 @@
-name: Nightly benchmarks
-
-on:
-  schedule:
-    # 03:15 UTC every day — off peak, avoids colliding with the regular CI surge.
-    - cron: "15 3 * * *"
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  issues: write
-
-jobs:
-  bench:
-    name: Run perf contract and regression checks
-    runs-on: ubuntu-latest
-    timeout-minutes: 60
-    env:
-      RUSTFLAGS: ""  # override target-cpu=native from .cargo/config.toml
-    steps:
-      - uses: actions/checkout@v6
-
-      - uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: stable
-
-      - uses: Swatinem/rust-cache@v2
-
-      - uses: actions/setup-python@v6
-        with:
-          python-version: "3.12"
-
-      - name: Install uv
-        run: pip install uv
-
-      - name: Build ferro-ta wheel
-        run: |
-          uv sync --extra dev
-          uv run maturin build --release --out dist
-          uv run pip install --force-reinstall dist/*.whl
-
-      - name: Run vs-TA-Lib benchmark
-        run: uv run python benchmarks/bench_vs_talib.py --output benchmarks/artifacts/nightly_vs_talib.json
-
-      - name: Run SIMD benchmark matrix
-        run: uv run python benchmarks/bench_simd.py --output benchmarks/artifacts/nightly_simd.json
-
-      - name: Check hotspot regression
-        id: hotspot
-        continue-on-error: true
-        run: uv run python benchmarks/check_hotspot_regression.py --tolerance 0.05
-
-      - name: Check vs-TA-Lib regression
-        id: vs_talib
-        continue-on-error: true
-        run: uv run python benchmarks/check_vs_talib_regression.py --tolerance 0.05
-
-      - name: Run criterion bench (build only)
-        run: cargo bench -p ferro_ta_core --no-run
-
-      - name: Upload nightly artifacts
-        uses: actions/upload-artifact@v7
-        if: always()
-        with:
-          name: nightly-bench-${{ github.run_id }}
-          path: benchmarks/artifacts/
-          retention-days: 30
-
-      - name: Open issue on regression
-        if: steps.hotspot.outcome == 'failure' || steps.vs_talib.outcome == 'failure'
-        uses: actions/github-script@v8
-        env:
-          HOTSPOT_OUTCOME: ${{ steps.hotspot.outcome }}
-          VS_TALIB_OUTCOME: ${{ steps.vs_talib.outcome }}
-          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
-        with:
-          script: |
-            const hotspot = process.env.HOTSPOT_OUTCOME;
-            const vsTalib = process.env.VS_TALIB_OUTCOME;
-            const runUrl = process.env.RUN_URL;
-            const failed = [];
-            if (hotspot === 'failure') failed.push('hotspot');
-            if (vsTalib === 'failure') failed.push('vs-TA-Lib');
-            const title = `Nightly benchmark regression: ${failed.join(' + ')}`;
-            const body = [
-              `The nightly benchmark workflow reported a >5% regression in: **${failed.join(', ')}**.`,
-              '',
-              `Run: ${runUrl}`,
-              '',
-              'Artifacts with the raw JSON are attached to the run above.',
-              'If this is a known regression, update the baseline JSON and close.',
-              'If it is unexpected, investigate the last commit on `main` before the nightly ran.',
-            ].join('\n');
-            await github.rest.issues.create({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              title,
-              body,
-              labels: ['performance', 'regression', 'nightly'],
-            });
@@ -20,7 +20,6 @@ jobs:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0
-          token: ${{ secrets.GH_PAT }}

      - name: Extract version from tag
        id: version
@@ -52,11 +51,10 @@ jobs:
          PY

      - name: Create GitHub Release
-        uses: softprops/action-gh-release@v3
+        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.ref_name }}
          name: v${{ steps.version.outputs.version }}
          body: ${{ steps.changelog.outputs.body }}
          draft: false
          prerelease: ${{ contains(github.ref_name, '-') }}
-          token: ${{ secrets.GH_PAT }}
@@ -9,76 +9,6 @@ and the project uses [Semantic Versioning](https://semver.org/).

 ## [Unreleased]

-## [1.2.0] — 2026-06-29
-
-### Added
-
- **Runtime CPU-feature dispatch** for SIMD hot paths via the `multiversion`
-  crate (`ferro_ta_core/src/simd.rs`). One binary now selects baseline /
-  AVX2-FMA / AVX-512 / NEON kernels at load time via CPUID instead of being
-  pinned at build time, so it runs on any CPU of the target architecture with
-  no illegal-instruction crashes on older chips. The `simd` feature is on by
-  default; `--no-default-features` gives a pure-scalar build.
- **Broader wheel coverage**: release builds now also produce Linux `aarch64`
-  (manylinux) and `musllinux` (x86_64 + aarch64) wheels and a Windows `arm64`
-  wheel, alongside the existing Linux x86_64, macOS universal2, and Windows
-  x64 wheels.
- **abi3 wheels** (`cp310-abi3`): a single stable-ABI wheel per platform now
-  covers CPython 3.10+ (including future 3.14+), replacing the per-version
-  wheel matrix.
- **Dynamic Time Warping** (`DTW`, `DTW_DISTANCE`, `BATCH_DTW`): Euclidean-cost
-  DTW with optional Sakoe-Chiba band (`window=` parameter). `DTW()` returns
-  `(distance, path)` with the optimal warping path as an `(N, 2)` index array;
-  `DTW_DISTANCE()` is the faster distance-only variant; `BATCH_DTW()` computes
-  distances from each row of a 2-D matrix to a reference series in parallel
-  via rayon. Distance convention matches `dtaidistance.dtw.distance()`.
- **Indicator-specific exception types** (`FerroTaError`, `InvalidPeriodError`,
-  `InsufficientDataError`, `LengthMismatchError`, `NumericConvergenceError`,
-  `InvalidInputError`): finer-grained errors for catching specific failure
-  modes. All subclass `ValueError` so existing `except ValueError` code keeps
-  working (backward compatible).
-
-### Changed
-
- **SIMD is now enabled by default and runtime-dispatched.** Replaced the
-  compile-time `wide` crate (which was never actually enabled in published
-  wheels) with `multiversion`. The `wide` Cargo feature is removed; use the
-  default `simd` feature instead.
- **Dependency bumps.** Rust: `log` 0.4.32, `serde_json` 1.0.150,
-  `rayon` 1.12.0. API service (`api/requirements.txt`): `uvicorn>=0.49.0`,
-  `pydantic>=2.13.4`, `ferro-ta>=1.1.4`. CI actions: `actions/deploy-pages` v5,
-  `actions/upload-pages-artifact` v5, `softprops/action-gh-release` v3.
- Python coverage threshold raised from 65% to 80% and enforced in CI.
-
-### Fixed
-
- **aarch64 Linux containers can now install ferro-ta.** Previously no Linux
-  `aarch64` wheel was published, so arm64 images (e.g. AWS Graviton) fell back
-  to an sdist build that failed without a Rust toolchain. A manylinux/musllinux
-  aarch64 wheel is now published.
- Published wheels now actually ship SIMD-accelerated kernels; the prior build
-  enabled no SIMD feature at all.
-
-### Security
-
- **SLSA build provenance** attestations are now generated for every PyPI
-  wheel and sdist via `actions/attest-build-provenance`. Verify with
-  `gh attestation verify <wheel>`.
- **Sigstore keyless signatures** are now published alongside both
-  CycloneDX/SPDX SBOMs on every GitHub Release (`.sig` + `.pem` files).
- `ferro_ta_core` crate now declares `#![forbid(unsafe_code)]` to prevent
-  regression — the pure-logic layer has no unsafe code and never will.
- Dependabot now covers the WASM npm package in addition to pip, cargo,
-  and GitHub Actions.
- **pip-audit fixes**: bumped dev lockfile deps `idna` 3.18, `pytest` 9.1.1,
-  and `urllib3` 2.7.0 to clear PYSEC-2026-215, CVE-2025-71176, and
-  PYSEC-2026-141/142.
- **pyo3 advisories triaged**: RUSTSEC-2026-0176 and RUSTSEC-2026-0177 are
-  ignored in `deny.toml` with rationale — ferro-ta uses neither affected code
-  path (PyList/PyTuple `nth` iterators; `PyCFunction::new_closure`). The
-  upstream fix requires pyo3 >=0.29 (a large API migration), tracked for a
-  follow-up.
-
 ## [1.1.3] — 2026-04-02

 ### Added
@@ -34,9 +34,9 @@ checksum = "940b3a0ca603d1eade50a4846a2afffd5ef57a9feac2c0e2ec2e14f9ead76000"

 [[package]]
 name = "arc-swap"
-version = "1.9.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a3a1fd6f75306b68087b831f025c712524bcb19aad54e557b1129cfa0a2b207"
+checksum = "a07d1f37ff60921c83bdfc7407723bdefe89b44b98a9b772f225c8f9d67141a6"
 dependencies = [
 "rustversion",
 ]
@@ -53,6 +53,12 @@ version = "3.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d20789868f4b01b2f2caec9f5c4e0213b41e3e5702a50157d699ae31ced2fcb"

+[[package]]
+name = "bytemuck"
+version = "1.25.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8efb64bd706a16a1bdde310ae86b351e4d21550d98d056f22f8a7f7a2183fec"
+
 [[package]]
 name = "cast"
 version = "0.3.0"
@@ -61,9 +67,9 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"

 [[package]]
 name = "cc"
-version = "1.2.59"
+version = "1.2.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7a4d3ec6524d28a329fc53654bbadc9bdd7b0431f5d65f1a56ffb28a1ee5283"
+checksum = "7a0dd1ca384932ff3641c8718a02769f1698e7563dc6974ffd03346116310423"
 dependencies = [
 "find-msvc-tools",
 "shlex",
@@ -201,7 +207,7 @@ checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"

 [[package]]
 name = "ferro_ta"
-version = "1.2.0"
+version = "1.1.3"
 dependencies = [
 "criterion",
 "ferro_ta_core",
@@ -216,12 +222,12 @@ dependencies = [

 [[package]]
 name = "ferro_ta_core"
-version = "1.2.0"
+version = "1.1.3"
 dependencies = [
 "criterion",
- "multiversion",
 "serde",
 "serde_json",
+ "wide",
 ]

 [[package]]
@@ -273,9 +279,9 @@ checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"

 [[package]]
 name = "js-sys"
-version = "0.3.94"
+version = "0.3.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e04e2ef80ce82e13552136fabeef8a5ed1f985a96805761cbb9a2c34e7664d9"
+checksum = "b49715b7073f385ba4bc528e5747d02e66cb39c6146efb66b781f131f0fb399c"
 dependencies = [
 "once_cell",
 "wasm-bindgen",
@@ -283,15 +289,15 @@ dependencies = [

 [[package]]
 name = "libc"
-version = "0.2.184"
+version = "0.2.183"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48f5d2a454e16a5ea0f4ced81bd44e4cfc7bd3a507b61887c99fd3538b28e4af"
+checksum = "b5b646652bf6661599e1da8901b3b9522896f01e736bad5f723fe7a3a27f899d"

 [[package]]
 name = "log"
-version = "0.4.32"
+version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "953f07c43838f8e6f9758cab68bf5bed85465e7587ebe0b823f1bcd81978ad3a"
+checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"

 [[package]]
 name = "matrixmultiply"
@@ -318,28 +324,6 @@ dependencies = [
 "autocfg",
 ]

-[[package]]
-name = "multiversion"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7edb7f0ff51249dfda9ab96b5823695e15a052dc15074c9dbf3d118afaf2c201"
-dependencies = [
- "multiversion-macros",
- "target-features",
-]
-
-[[package]]
-name = "multiversion-macros"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b093064383341eb3271f42e381cb8f10a01459478446953953c75d24bd339fc0"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "target-features",
-]
-
 [[package]]
 name = "ndarray"
 version = "0.16.1"
@@ -562,9 +546,9 @@ checksum = "60a357793950651c4ed0f3f52338f53b2f809f32d83a07f72909fa13e4c6c1e3"

 [[package]]
 name = "rayon"
-version = "1.12.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb39b166781f92d482534ef4b4b1b2568f42613b53e5b6c160e24cfbfa30926d"
+checksum = "368f01d005bf8fd9b1206fb6fa653e6c4a81ceb1466406b81792d87c5677a58f"
 dependencies = [
 "either",
 "rayon-core",
@@ -611,9 +595,9 @@ checksum = "dc897dd8d9e8bd1ed8cdad82b5966c3e0ecae09fb1907d58efaa013543185d0a"

 [[package]]
 name = "rustc-hash"
-version = "2.1.2"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94300abf3f1ae2e2b8ffb7b58043de3d399c73fa6f4b73826402a5c457614dbe"
+checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d"

 [[package]]
 name = "rustversion"
@@ -621,6 +605,15 @@ version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"

+[[package]]
+name = "safe_arch"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f7caad094bd561859bcd467734a720c3c1f5d1f338995351fefe2190c45efed"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -662,9 +655,9 @@ dependencies = [

 [[package]]
 name = "serde_json"
-version = "1.0.150"
+version = "1.0.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8014e44b4736ed0538adeecded0fce2a272f22dc9578a7eb6b2d9993c74cfb9"
+checksum = "83fc039473c5595ace860d8c4fafa220ff474b3fc6bfdb4293327f1a37e94d86"
 dependencies = [
 "itoa",
 "memchr",
@@ -696,12 +689,6 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "609409d472a0a7d8d4dd9e19891bbdef546b9dce670c3057d0e02192dc541226"

-[[package]]
-name = "target-features"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1bbb9f3c5c463a01705937a24fdabc5047929ac764b2d5b9cf681c1f5041ed5"
-
 [[package]]
 name = "target-lexicon"
 version = "0.13.5"
@@ -742,9 +729,9 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen"
-version = "0.2.117"
+version = "0.2.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0551fc1bb415591e3372d0bc4780db7e587d84e2a7e79da121051c5c4b89d0b0"
+checksum = "6532f9a5c1ece3798cb1c2cfdba640b9b3ba884f5db45973a6f442510a87d38e"
 dependencies = [
 "cfg-if",
 "once_cell",
@@ -755,9 +742,9 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.117"
+version = "0.2.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fbdf9a35adf44786aecd5ff89b4563a90325f9da0923236f6104e603c7e86be"
+checksum = "18a2d50fcf105fb33bb15f00e7a77b772945a2ee45dcf454961fd843e74c18e6"
 dependencies = [
 "quote",
 "wasm-bindgen-macro-support",
@@ -765,9 +752,9 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.117"
+version = "0.2.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dca9693ef2bab6d4e6707234500350d8dad079eb508dca05530c85dc3a529ff2"
+checksum = "03ce4caeaac547cdf713d280eda22a730824dd11e6b8c3ca9e42247b25c631e3"
 dependencies = [
 "bumpalo",
 "proc-macro2",
@@ -778,23 +765,33 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.117"
+version = "0.2.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39129a682a6d2d841b6c429d0c51e5cb0ed1a03829d8b3d1e69a011e62cb3d3b"
+checksum = "75a326b8c223ee17883a4251907455a2431acc2791c98c26279376490c378c16"
 dependencies = [
 "unicode-ident",
 ]

 [[package]]
 name = "web-sys"
-version = "0.3.94"
+version = "0.3.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd70027e39b12f0849461e08ffc50b9cd7688d942c1c8e3c7b22273236b4dd0a"
+checksum = "854ba17bb104abfb26ba36da9729addc7ce7f06f5c0f90f3c391f8461cca21f9"
 dependencies = [
 "js-sys",
 "wasm-bindgen",
 ]

+[[package]]
+name = "wide"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "198f6abc41fab83526d10880fa5c17e2b4ee44e763949b4bb34e2fd1e8ca48e4"
+dependencies = [
+ "bytemuck",
+ "safe_arch",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -843,18 +840,18 @@ dependencies = [

 [[package]]
 name = "zerocopy"
-version = "0.8.48"
+version = "0.8.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed437bf9d6692032087e337407a86f04cd8d6a16a37199ed57949d415bd68e9"
+checksum = "efbb2a062be311f2ba113ce66f697a4dc589f85e78a4aea276200804cea0ed87"
 dependencies = [
 "zerocopy-derive",
 ]

 [[package]]
 name = "zerocopy-derive"
-version = "0.8.48"
+version = "0.8.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e3cd084b1788766f53af483dd21f93881ff30d7320490ec3ef7526d203bad4"
+checksum = "0e8bc7269b54418e7aeeef514aa68f8690b8c0489a06b0136e5f57c4c5ccab89"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -5,7 +5,7 @@ resolver = "2"

 [package]
 name = "ferro_ta"
-version = "1.2.0"
+version = "1.1.3"
 edition = "2021"
 description = "Rust-powered Python technical analysis library with a TA-Lib-compatible API"
 license = "MIT"
@@ -22,9 +22,7 @@ name = "ferro_ta"
 crate-type = ["cdylib"]

 [dependencies]
-# abi3-py310: build a single stable-ABI wheel that runs on CPython 3.10+
-# (including future 3.14+), instead of one wheel per minor version.
-pyo3 = { version = "0.25", features = ["extension-module", "abi3-py310"] }
+pyo3 = { version = "0.25", features = ["extension-module"] }
 ta = "0.5.0"
 numpy = "0.25"
 # Must be < 0.17 while numpy 0.25 is used (numpy's IntoPyArray is for its own ndarray only).
@@ -32,11 +30,7 @@ ndarray = "0.16"
 rayon = "1.10"
 log = "0.4"
 pyo3-log = "0.12"
-# default-features = false so the `simd` toggle is forwarded explicitly via
-# this crate's own `simd` feature (below). Without this, core's default `simd`
-# would always be on and `--no-default-features` could never produce a true
-# pure-scalar build (used by the SIMD benchmark baseline).
-ferro_ta_core = { path = "crates/ferro_ta_core", version = "1.2.0", default-features = false, features = ["serde"] }
+ferro_ta_core = { path = "crates/ferro_ta_core", version = "1.1.3", features = ["serde"] }

 [dev-dependencies]
 criterion = { version = "0.8", features = ["html_reports"] }
@@ -46,7 +40,5 @@ lto = true
 codegen-units = 1

 [features]
-# SIMD runtime dispatch ON by default → published wheels ship the adaptive
-# fast path with no extra flags. `--no-default-features` yields pure scalar.
-default = ["simd"]
+default = []
 simd = ["ferro_ta_core/simd"]
@@ -8,36 +8,21 @@
 #
 # Environment variables (override at runtime):
 #   MAX_SERIES_LENGTH=100000   # maximum data-point count per request
-#
-# CPU portability
-# ---------------
-# This image installs the PRE-BUILT ferro-ta wheel from PyPI — we do NOT
-# recompile from sdist with `RUSTFLAGS=-C target-cpu=...`. The wheel is built
-# at the manylinux baseline (x86-64-v1) and selects AVX2/AVX-512/NEON kernels
-# at RUNTIME via CPU dispatch. One image therefore runs on any node — old or
-# new CPU, x86_64 or arm64 — with no illegal-instruction (SIGILL) crashes.
-# Pinning a target-cpu would be faster on a uniform fleet but would crash on
-# any older/heterogeneous node, which is the opposite of broad coverage.
-#
-# Build this image for whichever arch your nodes use:
-#   docker build --platform linux/amd64 -t ferro-ta-api .
-#   docker build --platform linux/arm64 -t ferro-ta-api .   # Graviton/Ampere
-# Both resolve a matching manylinux wheel — no Rust toolchain needed here.

 FROM python:3.11-slim

 WORKDIR /app

-# Copy and install dependencies first (cache layer). No compiler is needed:
-# ferro-ta, numpy, and pydantic-core all ship prebuilt wheels for linux
-# x86_64 and aarch64.
+# Install system dependencies required to build ferro_ta (Rust is pre-compiled
+# into the wheel, so only pip + wheel tooling is needed at runtime).
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy and install dependencies first (cache layer)
 COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt

-# Fail the build immediately if the wheel did not resolve for this arch
-# (e.g. an exotic platform that fell back to an sdist build without Rust).
-RUN python -c "import ferro_ta, numpy as np; ferro_ta.SMA(np.arange(10.0), 3); print('ferro_ta', ferro_ta.__version__, 'import OK')"
-
 # Copy API source
 COPY main.py ./

@@ -1,6 +1,6 @@
 # Runtime dependencies for ferro-ta API
-ferro_ta>=1.1.4
+ferro_ta>=1.0.0
 fastapi>=0.110.0
-uvicorn[standard]>=0.49.0
-pydantic>=2.13.4
+uvicorn[standard]>=0.27.0
+pydantic>=2.0.0
 numpy>=1.20
@@ -55,11 +55,8 @@ def run_simd_benchmark(
    iv_bars: int = 50_000,
    window: int = 252,
 ) -> dict[str, Any]:
-    # `simd` is a default feature, so a pure-scalar baseline must explicitly
-    # opt out via --no-default-features; otherwise both builds would be
-    # identical and every reported speedup would collapse to 1.0.
    variants = [
-        ("portable_release", ["--no-default-features"]),
+        ("portable_release", []),
        ("simd_release", ["--features", "simd"]),
    ]
    reports = {
@@ -1,5 +1,5 @@
 {% set name = "ferro-ta" %}
-{% set version = "1.2.0" %}
+{% set version = "1.1.3" %}

 package:
  name: {{ name|lower }}
@@ -1,6 +1,6 @@
 [package]
 name = "ferro_ta_core"
-version = "1.2.0"
+version = "1.1.3"
 edition = "2021"
 description = "Pure Rust core indicator library — no PyO3, no numpy dependency"
 license = "MIT"
@@ -16,7 +16,7 @@ name = "ferro_ta_core"
 crate-type = ["lib"]

 [dependencies]
-multiversion = { version = "0.8", optional = true }
+wide = { version = "1.1.1", optional = true }
 serde = { version = "1.0", features = ["derive"], optional = true }
 serde_json = { version = "1.0", optional = true }

@@ -28,12 +28,6 @@ name = "indicators"
 harness = false

 [features]
-# Runtime CPU-feature dispatch (multiversion). Default ON so `cargo add
-# ferro_ta_core` and the published wheels get SIMD-accelerated reductions
-# that adapt to the running CPU (baseline .. AVX-512 / NEON) WITHOUT pinning
-# a target-cpu — one binary runs on any CPU of the target arch, with no
-# illegal-instruction crashes on older chips. Disable with
-# `--no-default-features` for a pure-scalar build.
-default = ["simd"]
-simd = ["dep:multiversion"]
+wide = ["dep:wide"]
+simd = ["wide"]
 serde = ["dep:serde", "dep:serde_json"]
@@ -13,7 +13,7 @@ PyO3, NumPy, or Python runtime dependency, which makes it a good fit for:

 ```toml
 [dependencies]
-ferro_ta_core = "1.2.0"
+ferro_ta_core = "1.1.3"
 ```

 ## Design
@@ -1,5 +1,3 @@
-#![forbid(unsafe_code)]
-
 /*!
 ferro_ta_core — Pure Rust indicator library.

@@ -51,8 +49,6 @@ pub mod price_transform;
 pub mod regime;
 pub mod resampling;
 pub mod signals;
-/// Runtime-dispatched SIMD reduction primitives (internal).
-pub(crate) mod simd;
 pub mod statistic;
 pub mod streaming;
 pub mod volatility;
@@ -38,10 +38,27 @@ pub fn sma_into(src: &[f64], timeperiod: usize, dest: &mut [f64], dest_offset: u
        return;
    }

-    // Seed the rolling window with a runtime-dispatched reduction. The O(n)
-    // streaming recurrence below is inherently sequential, so SIMD only ever
-    // applies to this initial window sum.
-    let mut window_sum = crate::simd::sum(&src[..timeperiod]);
+    #[cfg(feature = "simd")]
+    let window_sum_init = {
+        use wide::f64x4;
+        let p_data = &src[..timeperiod];
+        let mut sum = f64x4::splat(0.0);
+        let mut chunks = p_data.chunks_exact(4);
+        for chunk in &mut chunks {
+            sum += f64x4::new([chunk[0], chunk[1], chunk[2], chunk[3]]);
+        }
+        let arr = sum.to_array();
+        let mut total = arr[0] + arr[1] + arr[2] + arr[3];
+        for &v in chunks.remainder() {
+            total += v;
+        }
+        total
+    };
+
+    #[cfg(not(feature = "simd"))]
+    let window_sum_init: f64 = src[..timeperiod].iter().sum();
+
+    let mut window_sum = window_sum_init;
    let tp_f64 = timeperiod as f64;
    dest[dest_offset + timeperiod - 1] = window_sum / tp_f64;

@@ -107,9 +124,46 @@ pub fn wma(close: &[f64], timeperiod: usize) -> Vec<f64> {
    let denom: f64 = (timeperiod * (timeperiod + 1) / 2) as f64;
    let p = timeperiod as f64;

-    // Seed: compute T and S for the first window via a runtime-dispatched
-    // reduction (the streaming recurrence below is sequential).
-    let (mut t, mut s) = crate::simd::wma_seed(&close[..timeperiod]);
+    // Seed: compute T and S for the first window.
+    #[cfg(feature = "simd")]
+    let (mut t, mut s) = {
+        use wide::f64x4;
+        let p_data = &close[..timeperiod];
+        let mut t_simd = f64x4::splat(0.0);
+        let mut s_simd = f64x4::splat(0.0);
+        let mut chunks = p_data.chunks_exact(4);
+        let mut idx = 1.0;
+        let step = f64x4::new([0.0, 1.0, 2.0, 3.0]);
+
+        for chunk in &mut chunks {
+            let vals = f64x4::new([chunk[0], chunk[1], chunk[2], chunk[3]]);
+            let mults = f64x4::splat(idx) + step;
+            t_simd += vals * mults;
+            s_simd += vals;
+            idx += 4.0;
+        }
+        let t_arr = t_simd.to_array();
+        let s_arr = s_simd.to_array();
+        let mut t = t_arr[0] + t_arr[1] + t_arr[2] + t_arr[3];
+        let mut s = s_arr[0] + s_arr[1] + s_arr[2] + s_arr[3];
+        for &v in chunks.remainder() {
+            t += v * idx;
+            s += v;
+            idx += 1.0;
+        }
+        (t, s)
+    };
+
+    #[cfg(not(feature = "simd"))]
+    let (mut t, mut s) = {
+        let t_val: f64 = close[..timeperiod]
+            .iter()
+            .enumerate()
+            .map(|(k, &v)| v * (k + 1) as f64)
+            .sum();
+        let s_val: f64 = close[..timeperiod].iter().sum();
+        (t_val, s_val)
+    };

    result[timeperiod - 1] = t / denom;

@@ -1,161 +0,0 @@
-//! Runtime-dispatched SIMD primitives.
-//!
-//! Each public reduction here is compiled into several CPU-feature-specific
-//! variants (baseline, SSE, AVX2/FMA, AVX-512 on x86_64; NEON on aarch64; …)
-//! by [`multiversion`]. The fastest variant the *current* CPU supports is
-//! chosen at runtime via CPUID. This gives one binary that:
-//!
-//! * runs on **any** CPU of the target architecture — no illegal-instruction
-//!   (SIGILL) crashes on pre-AVX2 chips, unlike a static `-C target-cpu=…`;
-//! * still uses wide vector units where the hardware has them.
-//!
-//! The hot loops accumulate into **independent lanes** before a final
-//! horizontal combine. That is what lets the optimizer auto-vectorize them:
-//! a plain sequential `iter().sum()` is a dependency chain LLVM may not
-//! reorder (doing so would change floating-point rounding). As a consequence
-//! these results differ from a strict left-to-right sum by a few ULPs — well
-//! inside every indicator's documented tolerance.
-
-/// Number of independent accumulator lanes. Eight `f64` lanes cover the
-/// widest target we dispatch to (AVX-512 = 8×f64); narrower targets (AVX2,
-/// NEON) simply use a subset.
-#[cfg(feature = "simd")]
-const LANES: usize = 8;
-
-/// Sum of a slice of `f64`, runtime-dispatched.
-#[cfg(feature = "simd")]
-#[multiversion::multiversion(targets = "simd")]
-pub(crate) fn sum(data: &[f64]) -> f64 {
-    let mut acc = [0.0f64; LANES];
-    let mut chunks = data.chunks_exact(LANES);
-    for chunk in &mut chunks {
-        for (a, &v) in acc.iter_mut().zip(chunk) {
-            *a += v;
-        }
-    }
-    let remainder: f64 = chunks.remainder().iter().sum();
-    remainder + acc.iter().sum::<f64>()
-}
-
-/// Pure-scalar fallback when the `simd` feature is disabled.
-#[cfg(not(feature = "simd"))]
-pub(crate) fn sum(data: &[f64]) -> f64 {
-    data.iter().sum()
-}
-
-/// Weighted-moving-average seed for the first window.
-///
-/// Returns `(t, s)` where `t = Σ data[k] * (k + 1)` (1-based linear weights)
-/// and `s = Σ data[k]`. Used to seed the O(n) WMA recurrence.
-#[cfg(feature = "simd")]
-#[multiversion::multiversion(targets = "simd")]
-pub(crate) fn wma_seed(data: &[f64]) -> (f64, f64) {
-    // Lane-local accumulation (same idea as `sum`) so each CPU-feature clone
-    // can vectorize: `t` weights each value by its 1-based global index.
-    let mut t_acc = [0.0f64; LANES];
-    let mut s_acc = [0.0f64; LANES];
-    let mut chunks = data.chunks_exact(LANES);
-    let mut base = 0.0f64; // global index of this chunk's first element
-    for chunk in &mut chunks {
-        for (lane, ((t, s), &v)) in t_acc
-            .iter_mut()
-            .zip(s_acc.iter_mut())
-            .zip(chunk)
-            .enumerate()
-        {
-            *t += v * (base + lane as f64 + 1.0);
-            *s += v;
-        }
-        base += LANES as f64;
-    }
-    let mut t = 0.0;
-    let mut s = 0.0;
-    for (i, &v) in chunks.remainder().iter().enumerate() {
-        t += v * (base + i as f64 + 1.0);
-        s += v;
-    }
-    (t + t_acc.iter().sum::<f64>(), s + s_acc.iter().sum::<f64>())
-}
-
-/// Pure-scalar fallback when the `simd` feature is disabled.
-#[cfg(not(feature = "simd"))]
-pub(crate) fn wma_seed(data: &[f64]) -> (f64, f64) {
-    let mut t = 0.0;
-    let mut s = 0.0;
-    for (k, &v) in data.iter().enumerate() {
-        t += v * (k + 1) as f64;
-        s += v;
-    }
-    (t, s)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    /// Strict sequential reference — the ground truth we compare against.
-    fn naive_sum(data: &[f64]) -> f64 {
-        data.iter().sum()
-    }
-
-    fn naive_wma_seed(data: &[f64]) -> (f64, f64) {
-        let t = data
-            .iter()
-            .enumerate()
-            .map(|(k, &v)| v * (k + 1) as f64)
-            .sum();
-        let s = data.iter().sum();
-        (t, s)
-    }
-
-    /// Deterministic test vectors spanning the lane boundaries: empty, a
-    /// partial chunk (< LANES), an exact multiple, and an exact-multiple +
-    /// remainder. This exercises every branch of the chunked reduction.
-    fn cases() -> Vec<Vec<f64>> {
-        let big: Vec<f64> = (0..1000).map(|i| (i as f64) * 0.5 - 123.0).collect();
-        vec![
-            vec![],
-            vec![42.0],
-            vec![1.0, 2.0, 3.0],                  // < LANES
-            (1..=8).map(|i| i as f64).collect(),  // exactly LANES
-            (1..=17).map(|i| i as f64).collect(), // LANES*2 + 1
-            big,
-        ]
-    }
-
-    #[test]
-    fn sum_matches_sequential_within_tolerance() {
-        for data in cases() {
-            let got = sum(&data);
-            let want = naive_sum(&data);
-            assert!(
-                (got - want).abs() <= 1e-9 * want.abs().max(1.0),
-                "sum mismatch: got {got}, want {want}, len {}",
-                data.len()
-            );
-        }
-    }
-
-    #[test]
-    fn wma_seed_matches_sequential_within_tolerance() {
-        for data in cases() {
-            let (t, s) = wma_seed(&data);
-            let (wt, ws) = naive_wma_seed(&data);
-            assert!(
-                (t - wt).abs() <= 1e-9 * wt.abs().max(1.0),
-                "wma t mismatch: got {t}, want {wt}, len {}",
-                data.len()
-            );
-            assert!(
-                (s - ws).abs() <= 1e-9 * ws.abs().max(1.0),
-                "wma s mismatch: got {s}, want {ws}, len {}",
-                data.len()
-            );
-        }
-    }
-
-    #[test]
-    fn sum_empty_is_zero() {
-        assert_eq!(sum(&[]), 0.0);
-    }
-}
@@ -247,118 +247,6 @@ pub fn correl(real0: &[f64], real1: &[f64], timeperiod: usize) -> Vec<f64> {
    result
 }

-// ---------------------------------------------------------------------------
-// Dynamic Time Warping (DTW)
-// ---------------------------------------------------------------------------
-
-/// Internal helper: build the full DTW accumulated-cost matrix.
-///
-/// Local cost: `|s1[i] - s2[j]|` (Euclidean / L1 for 1-D series).
-/// This matches the convention used by `dtaidistance.dtw.distance()`.
-///
-/// Out-of-band cells (Sakoe-Chiba constraint) are set to `f64::INFINITY`.
-fn dtw_matrix(s1: &[f64], s2: &[f64], window: Option<usize>) -> Vec<Vec<f64>> {
-    let n = s1.len();
-    let m = s2.len();
-    let mut dp = vec![vec![f64::INFINITY; m]; n];
-    for i in 0..n {
-        // Window convention matches dtaidistance: window=w means |i-j| < w.
-        // None = unconstrained (full matrix).
-        let (j_lo, j_hi) = match window {
-            None => (0, m),
-            Some(w) => {
-                let lo = i.saturating_sub(w.saturating_sub(1));
-                let hi = i.saturating_add(w).min(m);
-                (lo, hi)
-            }
-        };
-        for j in j_lo..j_hi {
-            // Squared Euclidean local cost — matches dtaidistance convention.
-            // The final sqrt is applied only once at the top level (not per-step).
-            let cost = (s1[i] - s2[j]).powi(2);
-            let prev = if i == 0 && j == 0 {
-                0.0
-            } else if i == 0 {
-                dp[0][j - 1]
-            } else if j == 0 {
-                dp[i - 1][0]
-            } else {
-                dp[i - 1][j - 1].min(dp[i - 1][j]).min(dp[i][j - 1])
-            };
-            dp[i][j] = cost + prev;
-        }
-    }
-    dp
-}
-
-/// Compute the Dynamic Time Warping distance between two 1-D series.
-///
-/// Returns the accumulated Euclidean cost along the optimal warping path.
-/// Uses `|s1[i] - s2[j]|` as the local cost, matching `dtaidistance` convention.
-///
-/// # Arguments
-/// * `s1` - First time series.
-/// * `s2` - Second time series.
-/// * `window` - Optional Sakoe-Chiba band width. `None` = unconstrained.
-///
-/// Returns `f64::NAN` if either input is empty.
-pub fn dtw_distance(s1: &[f64], s2: &[f64], window: Option<usize>) -> f64 {
-    if s1.is_empty() || s2.is_empty() {
-        return f64::NAN;
-    }
-    let dp = dtw_matrix(s1, s2, window);
-    // sqrt applied once at the end — matches dtaidistance.dtw.distance() convention.
-    dp[s1.len() - 1][s2.len() - 1].sqrt()
-}
-
-/// Compute the DTW distance and the optimal warping path between two 1-D series.
-///
-/// The warping path is a `Vec<(usize, usize)>` of `(i, j)` index pairs,
-/// starting at `(0, 0)` and ending at `(n-1, m-1)`, monotonically non-decreasing.
-///
-/// # Arguments
-/// * `s1` - First time series.
-/// * `s2` - Second time series.
-/// * `window` - Optional Sakoe-Chiba band width. `None` = unconstrained.
-///
-/// Returns `(f64::NAN, vec![])` if either input is empty.
-pub fn dtw_path(s1: &[f64], s2: &[f64], window: Option<usize>) -> (f64, Vec<(usize, usize)>) {
-    if s1.is_empty() || s2.is_empty() {
-        return (f64::NAN, vec![]);
-    }
-    let dp = dtw_matrix(s1, s2, window);
-    let dist = dp[s1.len() - 1][s2.len() - 1].sqrt();
-
-    // Backtrace from (n-1, m-1) to (0, 0)
-    let mut path = Vec::new();
-    let (mut i, mut j) = (s1.len() - 1, s2.len() - 1);
-    path.push((i, j));
-    while i > 0 || j > 0 {
-        let (ni, nj) = match (i, j) {
-            (0, _) => (0, j - 1),
-            (_, 0) => (i - 1, 0),
-            _ => {
-                let diag = dp[i - 1][j - 1];
-                let up = dp[i - 1][j];
-                let left = dp[i][j - 1];
-                let best = diag.min(up).min(left);
-                if best == diag {
-                    (i - 1, j - 1)
-                } else if best == up {
-                    (i - 1, j)
-                } else {
-                    (i, j - 1)
-                }
-            }
-        };
-        i = ni;
-        j = nj;
-        path.push((i, j));
-    }
-    path.reverse();
-    (dist, path)
-}
-
 #[cfg(test)]
 mod tests {
    use super::*;
@@ -371,122 +259,4 @@ mod tests {
            assert!(v.abs() < 1e-10);
        }
    }
-
-    #[test]
-    fn dtw_identical_series_is_zero() {
-        let a = vec![1.0, 2.0, 3.0, 4.0, 5.0];
-        assert_eq!(dtw_distance(&a, &a, None), 0.0);
-    }
-
-    #[test]
-    fn dtw_known_shifted_series() {
-        // [0,1,2] vs [1,2,3]: DTW uses squared Euclidean local cost + final sqrt.
-        // Optimal path (0,0)→(1,0)→(2,1)→(2,2), accumulated cost = 1+0+0+1 = 2, sqrt(2).
-        // Matches dtaidistance.dtw.distance([0,1,2],[1,2,3]) = 1.4142...
-        let a = vec![0.0, 1.0, 2.0];
-        let b = vec![1.0, 2.0, 3.0];
-        let expected = 2.0_f64.sqrt();
-        let result = dtw_distance(&a, &b, None);
-        assert!(
-            (result - expected).abs() < 1e-12,
-            "got {result}, expected {expected}"
-        );
-    }
-
-    #[test]
-    fn dtw_known_even_shift() {
-        // [0,2,4] vs [1,3,5]: diagonal path, squared costs 1+1+1=3, sqrt(3).
-        // Matches dtaidistance.dtw.distance([0,2,4],[1,3,5]) = 1.7320...
-        let a = vec![0.0, 2.0, 4.0];
-        let b = vec![1.0, 3.0, 5.0];
-        let expected = 3.0_f64.sqrt();
-        let result = dtw_distance(&a, &b, None);
-        assert!(
-            (result - expected).abs() < 1e-12,
-            "got {result}, expected {expected}"
-        );
-    }
-
-    #[test]
-    fn dtw_single_element() {
-        let a = vec![3.0];
-        let b = vec![7.0];
-        assert_eq!(dtw_distance(&a, &b, None), 4.0);
-    }
-
-    #[test]
-    fn dtw_empty_returns_nan() {
-        assert!(dtw_distance(&[], &[1.0, 2.0], None).is_nan());
-        assert!(dtw_distance(&[1.0, 2.0], &[], None).is_nan());
-    }
-
-    #[test]
-    fn dtw_path_endpoints() {
-        let a = vec![1.0, 2.0, 3.0, 4.0];
-        let b = vec![1.5, 2.5, 3.5, 4.5];
-        let (_, path) = dtw_path(&a, &b, None);
-        assert_eq!(path.first(), Some(&(0, 0)));
-        assert_eq!(path.last(), Some(&(3, 3)));
-    }
-
-    #[test]
-    fn dtw_path_is_monotone() {
-        let a = vec![1.0, 3.0, 2.0, 5.0, 4.0];
-        let b = vec![2.0, 1.0, 4.0, 3.0, 6.0];
-        let (_, path) = dtw_path(&a, &b, None);
-        for k in 1..path.len() {
-            assert!(path[k].0 >= path[k - 1].0);
-            assert!(path[k].1 >= path[k - 1].1);
-        }
-    }
-
-    #[test]
-    fn dtw_path_distance_matches_distance_only() {
-        let a = vec![1.0, 4.0, 2.0, 8.0, 3.0];
-        let b = vec![2.0, 3.0, 7.0, 4.0, 5.0];
-        let d1 = dtw_distance(&a, &b, None);
-        let (d2, _) = dtw_path(&a, &b, None);
-        assert!((d1 - d2).abs() < 1e-12);
-    }
-
-    #[test]
-    fn dtw_nan_in_input_propagates() {
-        // NaN in either input must propagate to the distance (IEEE 754 semantics).
-        let a = vec![1.0, 2.0, f64::NAN, 4.0];
-        let b = vec![1.0, 2.0, 3.0, 4.0];
-        assert!(dtw_distance(&a, &b, None).is_nan());
-        assert!(dtw_distance(&b, &a, None).is_nan());
-    }
-
-    #[test]
-    fn dtw_is_symmetric() {
-        let a = vec![1.0, 4.0, 2.0, 8.0, 3.0, 6.0, 5.0];
-        let b = vec![2.0, 3.0, 7.0, 4.0, 5.0, 1.0, 9.0];
-        let d_ab = dtw_distance(&a, &b, None);
-        let d_ba = dtw_distance(&b, &a, None);
-        assert!((d_ab - d_ba).abs() < 1e-12);
-    }
-
-    #[test]
-    fn dtw_path_length_bounded() {
-        // A valid warp path has length between max(n, m) and n + m - 1.
-        let a: Vec<f64> = (0..7).map(|x| x as f64).collect();
-        let b: Vec<f64> = (0..10).map(|x| (x as f64).sin()).collect();
-        let (_, path) = dtw_path(&a, &b, None);
-        let n = a.len();
-        let m = b.len();
-        assert!(path.len() >= n.max(m));
-        assert!(path.len() <= n + m - 1);
-    }
-
-    #[test]
-    fn dtw_window_constrained_ge_unconstrained() {
-        // window convention matches dtaidistance: Some(w) means |i-j| < w.
-        // A narrow window restricts warping, so constrained distance >= unconstrained.
-        let a: Vec<f64> = (0..20).map(|x| x as f64).collect();
-        let b: Vec<f64> = (0..20).map(|x| x as f64 + 3.0).collect();
-        let d_full = dtw_distance(&a, &b, None);
-        let d_narrow = dtw_distance(&a, &b, Some(3));
-        assert!(d_narrow >= d_full - 1e-12);
-    }
 }
@@ -53,19 +53,7 @@ skip = []
 db-urls = ["https://github.com/rustsec/advisory-db"]
 # Deny known security vulnerabilities
 version = 2
-ignore = [
-    # pyo3 0.25 advisories — fix is pyo3 >=0.29, which is a large API
-    # migration (IntoPy/ToPyObject were removed in 0.26). Ignored here
-    # because ferro-ta does NOT use either affected code path:
-    #   * RUSTSEC-2026-0176 — OOB read in PyList/PyTuple nth/nth_back
-    #     iterators: the crate has zero PyList/PyTuple iterator usage.
-    #   * RUSTSEC-2026-0177 — missing Sync bound on
-    #     PyCFunction::new_closure: the crate uses #[pyfunction], never
-    #     new_closure.
-    # Tracked for removal once the pyo3 0.29 upgrade lands.
-    "RUSTSEC-2026-0176",
-    "RUSTSEC-2026-0177",
-]
+ignore = []

 # ---------------------------------------------------------------------------
 # Sources — only allow crates from crates.io and our own path deps
@@ -1,8 +1,8 @@
 {
  "surfaces": {
    "python": {
-      "indicator_count": 211,
-      "method_count": 467,
+      "indicator_count": 208,
+      "method_count": 464,
      "categories": [
        "aggregation",
        "alerts",
@@ -131,13 +131,6 @@
          "doc": "",
          "params": []
        },
-        {
-          "name": "BATCH_DTW",
-          "category": "statistic",
-          "module": "ferro_ta.indicators.statistic",
-          "doc": "",
-          "params": []
-        },
        {
          "name": "BBANDS",
          "category": "overlap",
@@ -663,20 +656,6 @@
          "doc": "",
          "params": []
        },
-        {
-          "name": "DTW",
-          "category": "statistic",
-          "module": "ferro_ta.indicators.statistic",
-          "doc": "",
-          "params": []
-        },
-        {
-          "name": "DTW_DISTANCE",
-          "category": "statistic",
-          "module": "ferro_ta.indicators.statistic",
-          "doc": "",
-          "params": []
-        },
        {
          "name": "DX",
          "category": "momentum",
@@ -3304,13 +3283,6 @@
          "doc": "",
          "params": []
        },
-        {
-          "name": "BATCH_DTW",
-          "category": "statistic",
-          "module": "ferro_ta.indicators.statistic",
-          "doc": "",
-          "params": []
-        },
        {
          "name": "BETA",
          "category": "statistic",
@@ -3325,20 +3297,6 @@
          "doc": "",
          "params": []
        },
-        {
-          "name": "DTW",
-          "category": "statistic",
-          "module": "ferro_ta.indicators.statistic",
-          "doc": "",
-          "params": []
-        },
-        {
-          "name": "DTW_DISTANCE",
-          "category": "statistic",
-          "module": "ferro_ta.indicators.statistic",
-          "doc": "",
-          "params": []
-        },
        {
          "name": "LINEARREG",
          "category": "statistic",
@@ -4777,7 +4735,7 @@
      ]
    },
    "rust_core": {
-      "public_function_count": 351,
+      "public_function_count": 349,
      "functions": [
        {
          "module": "aggregation",
@@ -6229,16 +6187,6 @@
          "function": "correl",
          "file": "statistic.rs"
        },
-        {
-          "module": "statistic",
-          "function": "dtw_distance",
-          "file": "statistic.rs"
-        },
-        {
-          "module": "statistic",
-          "function": "dtw_path",
-          "file": "statistic.rs"
-        },
        {
          "module": "statistic",
          "function": "linearreg",
@@ -6537,7 +6485,7 @@
      ]
    },
    "wasm_node": {
-      "export_count": 222,
+      "export_count": 221,
      "exports": [
        "ad",
        "adosc",
@@ -6598,7 +6546,6 @@
        "digital_price",
        "donchian",
        "drawdown_series",
-        "dtw_distance",
        "dx",
        "early_exercise_premium",
        "ema",
@@ -6765,9 +6712,9 @@
    }
  },
  "parity_summary": {
-    "python_indicator_count": 210,
-    "wasm_export_count": 222,
-    "common_python_wasm_count": 92,
+    "python_indicator_count": 207,
+    "wasm_export_count": 221,
+    "common_python_wasm_count": 91,
    "common_python_wasm": [
      "ad",
      "adosc",
@@ -6796,7 +6743,6 @@
      "dema",
      "detect_breaks_cusum",
      "donchian",
-      "dtw_distance",
      "dx",
      "ema",
      "ht_dcperiod",
@@ -6871,7 +6817,6 @@
      "asin",
      "atan",
      "batch_apply",
-      "batch_dtw",
      "beta",
      "cdl2crows",
      "cdl3blackcrows",
@@ -6941,7 +6886,6 @@
      "cosh",
      "div",
      "drawdown",
-      "dtw",
      "exp",
      "feature_matrix",
      "floor",
@@ -1,7 +1,7 @@
 Release Notes
 =============

-These docs track package version ``1.2.0``.
+These docs track package version ``1.1.3``.

 1.1.0-audit (2026-03-28)
 ------------------------
@@ -1,80 +0,0 @@
-# Dynamic Time Warping
-
-ferro-ta ships three DTW entry points. Pick the one that matches your
-workload — the distance-only path is measurably faster than the one that
-reconstructs the warping path, and `BATCH_DTW` parallelises over rows.
-
-## Quick reference
-
-| Function | Returns | When to use |
-|---|---|---|
-| `DTW_DISTANCE(a, b, window=None)` | `float` | You only need the distance. Fastest. |
-| `DTW(a, b, window=None)` | `(float, ndarray[N, 2])` | You need the alignment path for plotting or downstream analysis. |
-| `BATCH_DTW(matrix, reference, window=None)` | `ndarray[N]` | You have N candidate series and one reference; uses rayon. |
-
-## Distance convention
-
-ferro-ta's DTW uses squared-Euclidean local cost accumulated along the
-optimal path, with a single `sqrt()` applied at the end. This matches
-`dtaidistance.dtw.distance()` to within floating-point tolerance (parity
-tests assert numerical agreement, not bitwise identity). Example:
-
-```python
->>> import ferro_ta as fta
->>> fta.DTW_DISTANCE([0.0, 1.0, 2.0], [1.0, 2.0, 3.0])
-1.4142135623730951  # == sqrt(2), same as dtaidistance
-```
-
-If you are migrating from a library that uses absolute-difference local
-cost without the final sqrt (e.g. `fastdtw`'s default), your numbers will
-not line up. That is a choice ferro-ta made for parity with the
-scientific-Python ecosystem.
-
-## Window constraint (Sakoe-Chiba band)
-
-Passing `window=w` constrains the DP to cells where `|i - j| < w`. This
-turns the O(n·m) cost into O(n·w), which is typically a 5–20× speedup for
-realistic `w`. A narrower band can only *increase* the distance, so
-`window=` is safe to use whenever your series are roughly aligned.
-
-```python
-# Unconstrained
-fta.DTW_DISTANCE(a, b)
-
-# Constrained: warping may shift up to 5 positions
-fta.DTW_DISTANCE(a, b, window=5)
-```
-
-## Batch usage
-
-`BATCH_DTW` compares each row of a 2-D matrix against one reference
-series, in parallel:
-
-```python
-import numpy as np
-import ferro_ta as fta
-
-reference = np.random.random(500)
-candidates = np.random.random((1000, 500))
-
-distances = fta.BATCH_DTW(candidates, reference, window=20)
-nearest = int(np.argmin(distances))
-```
-
-Parallelism is via rayon; no thread-pool configuration is needed on the
-Python side. For the sequence lengths ferro-ta targets (thousands of
-bars, hundreds to low thousands of candidates), batch-parallel classic
-DTW beats FastDTW-style approximations.
-
-## Edge cases
-
- **Empty input:** raises `FerroTAInputError`.
- **NaN in input:** propagates to the output (matches IEEE 754). Call
-  `ferro_ta.core.exceptions.check_finite()` first if you want to fail
-  loudly instead.
- **Different-length series:** fully supported. The path array length
-  is bounded by `max(n, m) <= len(path) <= n + m - 1`.
-
-## See also
-
- `tests/unit/indicators/test_statistic.py` — parity tests against `dtaidistance`.
@@ -1,92 +0,0 @@
-# SIMD acceleration
-
-ferro-ta accelerates hot reductions with **runtime CPU-feature dispatch**
-via the [`multiversion`](https://crates.io/crates/multiversion) crate. Each
-dispatched function is compiled into several variants — baseline, SSE,
-AVX2/FMA, AVX-512 on x86_64; NEON on aarch64 — and the fastest one the
-**current** CPU supports is chosen at load time via CPUID.
-
-## Why dispatch instead of `-C target-cpu`
-
-A static `RUSTFLAGS=-C target-cpu=x86-64-v3` build *requires* AVX2 on the
-running CPU; on an older chip it crashes with an illegal instruction
-(SIGILL). Runtime dispatch instead ships every code path in one binary and
-picks at runtime, so a single artifact:
-
- runs on **any** CPU of the target architecture (no SIGILL on pre-AVX2
-  hardware), and
- still uses wide vector units where the hardware has them.
-
-That property is what lets the **same** wheel / Docker image / crate run
-across a heterogeneous fleet.
-
-## When it helps
-
-SIMD helps indicators whose inner loop is a reduction over contiguous
-`f64` data — e.g. the initial window sum that seeds SMA, the `(T, S)` seed
-for WMA, and similar fixed-window reductions. It does **not** help:
-
- The O(n) streaming recurrences (`window_sum += new - old`): each step
-  depends on the previous one, so they are inherently sequential.
- Branchy inner loops (SAR, candlestick patterns).
- Streaming classes (a single-bar update is one or two ops).
-
-The shared primitives live in `crates/ferro_ta_core/src/simd.rs`
-(`sum`, `wma_seed`). They accumulate into independent lanes before a final
-horizontal combine — that lane independence is what allows the optimizer to
-vectorize each CPU-feature variant. A consequence is that results differ
-from a strict left-to-right sum by a few ULPs, well inside every
-indicator's documented tolerance.
-
-## The `simd` feature
-
-Dispatch is gated behind the `simd` Cargo feature, which is **on by
-default**:
-
-```bash
-# default build — runtime dispatch enabled
-cargo build -p ferro_ta_core --release
-
-# pure-scalar build (debugging / baseline benchmarking)
-cargo build -p ferro_ta_core --release --no-default-features
-```
-
-For Python, wheels published to PyPI are built with the default features,
-so `pip install ferro-ta` ships the dispatched fast path with no action on
-your part. To build a pure-scalar extension from source:
-
-```bash
-maturin develop --release --no-default-features
-```
-
-## Measured speedups
-
-The nightly `benchmarks/bench_simd.py` job (see
-`.github/workflows/nightly-bench.yml`) builds the extension twice — once
-with `--no-default-features` (pure scalar) and once with `--features simd`
-(dispatch) — and reports the per-indicator delta. Numbers are regenerated
-on every run and vary with hardware; treat any table in a PR as a snapshot,
-not a contract. The dispatched kernels here target correctness-preserving
-reductions, so gains are modest on the sliding-window indicators and larger
-on full-array reductions.
-
-## Adding a SIMD-optimized indicator
-
-1. Write and test the **scalar** implementation first — it is the ground
-   truth.
-2. If the hot path is a contiguous `f64` reduction, route it through a
-   `crate::simd` primitive, or wrap a new helper in
-   `#[multiversion::multiversion(targets = "simd")]` with the loop body
-   accumulating into independent lanes.
-3. Add a parity test comparing the dispatched result against the strict
-   scalar reference within tolerance (see `simd.rs` tests for the pattern).
-4. Benchmark scalar vs dispatch via `bench_simd.py`. Only keep the SIMD
-   path if it wins — alignment and tail-handling overhead can make a naive
-   vectorization *lose* to scalar.
-
-## See also
-
- `crates/ferro_ta_core/src/simd.rs` — dispatched primitives and tests.
- `benches/indicators.rs` — criterion suite.
- `crates/ferro_ta_core/Cargo.toml` `[features] simd = ["dep:multiversion"]`
-  — the gate (default-on).
@@ -180,7 +180,7 @@ For source builds, packaging details, and platform notes, see
 Release status
 --------------

-These docs track package version ``1.2.0``.
+These docs track package version ``1.1.3``.

 - Release notes by version: :doc:`changelog`
 - Canonical project changelog: `CHANGELOG.md <https://github.com/pratikbhadane24/ferro-ta/blob/main/CHANGELOG.md>`_
@@ -4,7 +4,7 @@ build-backend = "maturin"

 [project]
 name = "ferro-ta"
-version = "1.2.0"
+version = "1.1.3"
 description = "Rust-powered Python technical analysis library with a TA-Lib-compatible API"
 readme = "README.md"
 license = { text = "MIT" }
@@ -84,7 +84,7 @@ omit = ["*/_ferro_ta*", "*/mcp/*"]

 [tool.coverage.report]
 show_missing = true
-fail_under = 80
+fail_under = 65
 exclude_lines = [
    "pragma: no cover",
    "if TYPE_CHECKING:",
@@ -110,14 +110,8 @@ __version__ = _detect_version()
 # ---------------------------------------------------------------------------
 from ferro_ta.core.exceptions import (  # noqa: F401
    FerroTAError,
-    FerroTaError,
    FerroTAInputError,
    FerroTAValueError,
-    InsufficientDataError,
-    InvalidInputError,
-    InvalidPeriodError,
-    LengthMismatchError,
-    NumericConvergenceError,
 )

 # ---------------------------------------------------------------------------
@@ -131,63 +131,6 @@ class FerroTAInputError(FerroTAError, ValueError):
    code = "FTERR002"


-# ---------------------------------------------------------------------------
-# Finer-grained exception subclasses (added in 1.2.0).
-#
-# These are drop-in compatible with the base classes: every subclass still
-# inherits from ``FerroTAError`` and ``ValueError``, so existing user code
-# like ``except FerroTAValueError:`` or ``except ValueError:`` keeps working.
-# The subclasses exist so users can catch *specific* failure modes without
-# string-matching on the error message.
-# ---------------------------------------------------------------------------
-
-
-class InvalidPeriodError(FerroTAValueError):
-    """Parameter like ``timeperiod``, ``fastperiod``, ``slowperiod`` is out of range.
-
-    Default error code: ``FTERR001``.
-    """
-
-
-class InsufficientDataError(FerroTAInputError):
-    """Input array is shorter than the minimum required for the indicator.
-
-    Default error code: ``FTERR003``.
-    """
-
-    code = "FTERR003"
-
-
-class LengthMismatchError(FerroTAInputError):
-    """Two or more input arrays (e.g. OHLC) have different lengths.
-
-    Default error code: ``FTERR004``.
-    """
-
-    code = "FTERR004"
-
-
-class NumericConvergenceError(FerroTAValueError):
-    """An iterative calculation failed to converge within tolerance.
-
-    Raised by iterative pricing models (implied volatility root-finding,
-    Newton-Raphson, etc.) when the maximum iteration count is exhausted.
-    """
-
-
-class InvalidInputError(FerroTAInputError):
-    """Input contains NaN/Inf in strict mode, wrong dtype, or wrong shape.
-
-    Default error code: ``FTERR005``.
-    """
-
-    code = "FTERR005"
-
-
-# Public aliases that match the names documented in the README and
-# CHANGELOG [Unreleased] section.
-FerroTaError = FerroTAError  # type: ignore[misc]
-
 # ---------------------------------------------------------------------------
 # Validation helpers (called by Python wrappers)
 # ---------------------------------------------------------------------------
@@ -211,7 +154,7 @@ def check_timeperiod(value: int, name: str = "timeperiod", minimum: int = 1) ->
        If ``value < minimum``.
    """
    if value < minimum:
-        raise InvalidPeriodError(
+        raise FerroTAValueError(
            f"{name} must be >= {minimum}, got {value}",
            suggestion=f"Set {name}={minimum} or higher.",
        )
@@ -250,7 +193,7 @@ def check_equal_length(**arrays: object) -> None:

    if len(set(lengths.values())) > 1:
        detail = ", ".join(f"{k}={v}" for k, v in lengths.items())
-        raise LengthMismatchError(
+        raise FerroTAInputError(
            f"All input arrays must have the same length. Got: {detail}",
            code=_CODE_LENGTH_MISMATCH,
            suggestion="Trim or align your arrays so that open, high, low, close, and volume all have the same number of rows.",
@@ -280,7 +223,7 @@ def check_finite(arr: object, name: str = "input") -> None:

    a = np.asarray(arr, dtype=np.float64)
    if not np.all(np.isfinite(a)):
-        raise InvalidInputError(
+        raise FerroTAInputError(
            f"{name} contains NaN or Inf values. "
            "ferro_ta propagates NaN by default; call check_finite() only "
            "when you require all-finite inputs.",
@@ -312,7 +255,7 @@ def check_min_length(arr: object, min_len: int, name: str = "input") -> None:
    elif hasattr(arr, "shape"):
        length = arr.shape[0]  # type: ignore[union-attr]
    if length < min_len:
-        raise InsufficientDataError(
+        raise FerroTAInputError(
            f"{name} must have at least {min_len} elements, got {length}",
            code=_CODE_TOO_SHORT,
            suggestion=f"Provide at least {min_len} data points. Current length: {length}.",
@@ -12,33 +12,19 @@ LINEARREG_ANGLE  — Linear Regression Angle (degrees)
 TSF              — Time Series Forecast
 BETA             — Beta
 CORREL           — Pearson's Correlation Coefficient (r)
-DTW              — Dynamic Time Warping (distance + warping path)
-DTW_DISTANCE     — Dynamic Time Warping distance only (faster)
-BATCH_DTW        — Batch DTW: N series vs 1 reference, in parallel
 """

 from __future__ import annotations

-from typing import Optional
-
 import numpy as np
 from numpy.typing import ArrayLike

-from ferro_ta._ferro_ta import (
-    batch_dtw as _batch_dtw,
-)
 from ferro_ta._ferro_ta import (
    beta as _beta,
 )
 from ferro_ta._ferro_ta import (
    correl as _correl,
 )
-from ferro_ta._ferro_ta import (
-    dtw as _dtw,
-)
-from ferro_ta._ferro_ta import (
-    dtw_distance as _dtw_distance,
-)
 from ferro_ta._ferro_ta import (
    linearreg as _linearreg,
 )
@@ -261,98 +247,6 @@ def CORREL(real0: ArrayLike, real1: ArrayLike, timeperiod: int = 30) -> np.ndarr
        _normalize_rust_error(e)


-def DTW(
-    series1: ArrayLike,
-    series2: ArrayLike,
-    window: Optional[int] = None,
-) -> tuple[float, np.ndarray]:
-    """Dynamic Time Warping — distance and optimal warping path.
-
-    Parameters
-    ----------
-    series1 : array-like
-        First time series.
-    series2 : array-like
-        Second time series (may differ in length from series1).
-    window : int, optional
-        Sakoe-Chiba band width. ``None`` (default) = unconstrained.
-
-    Returns
-    -------
-    distance : float
-        DTW distance (accumulated Euclidean cost along the optimal path).
-    path : numpy.ndarray, shape (N, 2)
-        Warping path as ``(i, j)`` index pairs from ``(0, 0)`` to
-        ``(len(series1)-1, len(series2)-1)``.
-    """
-    try:
-        return _dtw(_to_f64(series1), _to_f64(series2), window)
-    except ValueError as e:
-        _normalize_rust_error(e)
-
-
-def DTW_DISTANCE(
-    series1: ArrayLike,
-    series2: ArrayLike,
-    window: Optional[int] = None,
-) -> float:
-    """Dynamic Time Warping distance only (faster — no path reconstruction).
-
-    Parameters
-    ----------
-    series1 : array-like
-        First time series.
-    series2 : array-like
-        Second time series (may differ in length from series1).
-    window : int, optional
-        Sakoe-Chiba band width. ``None`` (default) = unconstrained.
-
-    Returns
-    -------
-    float
-        DTW distance (accumulated Euclidean cost along the optimal path).
-    """
-    try:
-        return _dtw_distance(_to_f64(series1), _to_f64(series2), window)
-    except ValueError as e:
-        _normalize_rust_error(e)
-
-
-def BATCH_DTW(
-    matrix: ArrayLike,
-    reference: ArrayLike,
-    window: Optional[int] = None,
-) -> np.ndarray:
-    """Batch Dynamic Time Warping — N series vs 1 reference, computed in parallel.
-
-    Parameters
-    ----------
-    matrix : array-like, shape (N, L)
-        N time series of length L. Each row is compared against ``reference``.
-    reference : array-like, shape (L,)
-        The reference series.
-    window : int, optional
-        Sakoe-Chiba band width. ``None`` (default) = unconstrained.
-
-    Returns
-    -------
-    numpy.ndarray, shape (N,)
-        DTW distance from each row of ``matrix`` to ``reference``.
-    """
-    try:
-        mat = np.ascontiguousarray(matrix, dtype=np.float64)
-        if mat.ndim != 2:
-            from ferro_ta.core.exceptions import FerroTAInputError
-
-            raise FerroTAInputError(
-                f"matrix must be a 2-D array, got {mat.ndim}-D.",
-                suggestion="Pass a 2-D NumPy array of shape (N, L).",
-            )
-        return _batch_dtw(mat, _to_f64(reference), window)
-    except ValueError as e:
-        _normalize_rust_error(e)
-
-
 __all__ = [
    "STDDEV",
    "VAR",
@@ -363,7 +257,4 @@ __all__ = [
    "TSF",
    "BETA",
    "CORREL",
-    "DTW",
-    "DTW_DISTANCE",
-    "BATCH_DTW",
 ]
@@ -1,40 +1,27 @@
 #!/usr/bin/env bash
-# Pre-push CI gate — runs checks in parallel to minimise wall-clock time.
-#
-# Usage:
-#   scripts/pre_push_checks.sh                    # all checks
-#   scripts/pre_push_checks.sh rust_clippy wasm   # selected checks
-#   scripts/pre_push_checks.sh --list
-#   FERRO_FAST=1 scripts/pre_push_checks.sh       # skip docs + wasm bench
 set -euo pipefail

 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 cd "$ROOT_DIR"

 AVAILABLE_CHECKS=(
-  version changelog manifest
-  rust_fmt rust_clippy rust_core rust_bench
-  python_lint python_typecheck python_test
-  docs wasm
+  version
+  changelog
+  rust_fmt
+  rust_clippy
+  rust_core
+  rust_bench
+  python_lint
+  python_typecheck
+  python_test
+  docs
+  wasm
+  manifest
 )
+
 DEFAULT_CHECKS=("${AVAILABLE_CHECKS[@]}")

-# ---------------------------------------------------------------------------
-# Helpers
-# ---------------------------------------------------------------------------
-
-need_cmd() {
-  if ! command -v "$1" >/dev/null 2>&1; then
-    echo "Missing required command: $1" >&2; exit 1
-  fi
-}
-
-run_cmd() {
-  printf '    +'
-  printf ' %q' "$@"
-  printf '\n'
-  "$@"
-}
+python_env_ready=0

 usage() {
  cat <<'EOF'
@@ -43,60 +30,93 @@ Usage:
  scripts/pre_push_checks.sh <check> [<check> ...]
  scripts/pre_push_checks.sh --list

-Environment:
-  FERRO_FAST=1   Skip docs and wasm (fastest local feedback loop)
+Runs the repo's basic local CI gate before push. By default it covers:
+  version changelog rust_fmt rust_clippy rust_core rust_bench
+  python_lint python_typecheck python_test docs wasm manifest
+
+Notes:
+  - This mirrors the required CI categories we can run locally.
+  - It intentionally skips the multi-Python test matrix, audit jobs, perf smoke,
+    and benchmark-regression jobs.
 EOF
 }

-# ---------------------------------------------------------------------------
-# Individual check functions
-# ---------------------------------------------------------------------------
+list_checks() {
+  printf '%s\n' "${AVAILABLE_CHECKS[@]}"
+}
+
+need_cmd() {
+  local command_name="$1"
+  if ! command -v "$command_name" >/dev/null 2>&1; then
+    echo "Missing required command: $command_name" >&2
+    exit 1
+  fi
+}
+
+run_cmd() {
+  printf '  +'
+  printf ' %q' "$@"
+  printf '\n'
+  "$@"
+}
+
+ensure_python_env() {
+  if [[ "$python_env_ready" -eq 1 ]]; then
+    return
+  fi
+
+  need_cmd uv
+  run_cmd uv sync --extra dev --extra docs --extra mcp
+  run_cmd uv run --extra dev --extra docs --extra mcp maturin develop --release
+  python_env_ready=1
+}
+
+run_version() {
+  need_cmd python3
+  run_cmd python3 scripts/bump_version.py --check
+}
+
+run_changelog() {
+  need_cmd python3
+  run_cmd python3 scripts/check_changelog.py
+}
+
+run_rust_fmt() {
+  need_cmd cargo
+  run_cmd cargo fmt --all -- --check
+}
+
+run_rust_clippy() {
+  need_cmd cargo
+  run_cmd cargo clippy --release -- -D warnings
+}
+
+run_rust_core() {
+  need_cmd cargo
+  run_cmd cargo build -p ferro_ta_core
+  run_cmd cargo test -p ferro_ta_core
+}
+
+run_rust_bench() {
+  need_cmd cargo
+  run_cmd cargo bench -p ferro_ta_core --no-run
+}

-run_version()     { need_cmd python3; run_cmd python3 scripts/bump_version.py --check; }
-run_changelog()   { need_cmd python3; run_cmd python3 scripts/check_changelog.py; }
-run_manifest()    { need_cmd python3; run_cmd python3 scripts/check_api_manifest.py; }
-run_rust_fmt()    { need_cmd cargo;   run_cmd cargo fmt --all -- --check; }
 run_python_lint() {
  need_cmd uv
  run_cmd uv run --with ruff ruff check python/ tests/
  run_cmd uv run --with ruff ruff format --check python/ tests/
 }

-run_rust_clippy()      { need_cmd cargo; run_cmd cargo clippy --release -- -D warnings; }
-run_rust_core()        { need_cmd cargo; run_cmd cargo build -p ferro_ta_core && run_cmd cargo test -p ferro_ta_core; }
-run_rust_bench()       { need_cmd cargo; run_cmd cargo bench -p ferro_ta_core --no-run; }
-
 run_python_typecheck() {
  need_cmd uv
-  run_cmd uv run --with mypy --with numpy python -m mypy python/ferro_ta \
-    --ignore-missing-imports --no-error-summary
+  run_cmd uv run --with mypy --with numpy python -m mypy python/ferro_ta --ignore-missing-imports --no-error-summary
  run_cmd uv run --with pyright python -m pyright python/ferro_ta
 }

-# python_test and docs both need a compiled extension.
-# Use a flag file so only the first concurrent caller runs maturin develop;
-# subsequent callers (in parallel background jobs) wait and reuse it.
-_MATURIN_LOCK="${TMPDIR:-/tmp}/ferro_ta_maturin_$$.lock"
-_MATURIN_FLAG="${TMPDIR:-/tmp}/ferro_ta_maturin_$$.done"
-
-ensure_python_env() {
-  [[ -f "$_MATURIN_FLAG" ]] && return
-  (
-    flock 9
-    if [[ ! -f "$_MATURIN_FLAG" ]]; then
-      need_cmd uv
-      run_cmd uv sync --extra dev --extra docs --extra mcp
-      run_cmd uv run --extra dev --extra docs --extra mcp maturin develop --release
-      touch "$_MATURIN_FLAG"
-    fi
-  ) 9>"$_MATURIN_LOCK"
-}
-
 run_python_test() {
  ensure_python_env
-  run_cmd uv run --extra dev --extra mcp --with pytest-cov \
-    pytest tests/unit/ tests/integration/ \
-    -v --cov=ferro_ta --cov-report=term-missing --cov-fail-under=65
+  run_cmd uv run --extra dev --extra mcp --with pytest-cov pytest tests/unit/ tests/integration/ -v --cov=ferro_ta --cov-report=term-missing --cov-fail-under=65
 }

 run_docs() {
@@ -105,161 +125,69 @@ run_docs() {
 }

 run_wasm() {
-  need_cmd node; need_cmd wasm-pack
+  need_cmd node
+  need_cmd wasm-pack
+  local benchmark_json="../.wasm_benchmark.prepush.json"
  (
    cd wasm
+    trap 'rm -f "$benchmark_json"' EXIT
    run_cmd wasm-pack test --node
    run_cmd npm run build
-    if [[ "${FERRO_FAST:-0}" != "1" ]]; then
-      local bj="../.wasm_benchmark.prepush.json"
-      run_cmd node bench.js --json "$bj"
-      rm -f "$bj"
-    fi
+    run_cmd node bench.js --json "$benchmark_json"
  )
 }

+run_manifest() {
+  need_cmd python3
+  run_cmd python3 scripts/check_api_manifest.py
+}
+
 run_check() {
-  case "$1" in
-    version)          run_version ;;
-    changelog)        run_changelog ;;
-    manifest)         run_manifest ;;
-    rust_fmt)         run_rust_fmt ;;
-    rust_clippy)      run_rust_clippy ;;
-    rust_core)        run_rust_core ;;
-    rust_bench)       run_rust_bench ;;
-    python_lint)      run_python_lint ;;
+  local check_name="$1"
+  case "$check_name" in
+    version) run_version ;;
+    changelog) run_changelog ;;
+    rust_fmt) run_rust_fmt ;;
+    rust_clippy) run_rust_clippy ;;
+    rust_core) run_rust_core ;;
+    rust_bench) run_rust_bench ;;
+    python_lint) run_python_lint ;;
    python_typecheck) run_python_typecheck ;;
-    python_test)      run_python_test ;;
-    docs)             run_docs ;;
-    wasm)             run_wasm ;;
-    *) echo "Unknown check: $1 — use --list" >&2; exit 1 ;;
+    python_test) run_python_test ;;
+    docs) run_docs ;;
+    wasm) run_wasm ;;
+    manifest) run_manifest ;;
+    *)
+      echo "Unknown check: $check_name" >&2
+      echo "Use --list to see supported checks." >&2
+      exit 1
+      ;;
  esac
 }

-# ---------------------------------------------------------------------------
-# Parallel runner — starts all checks concurrently, collects results
-# ---------------------------------------------------------------------------
+if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
+  usage
+  exit 0
+fi

-run_parallel() {
-  local -a checks=("$@")
-  [[ "${#checks[@]}" -eq 0 ]] && return 0
-
-  local -a pids logs names
-  local start
-  start=$(date +%s)
-
-  printf '\nStarting %d checks in parallel: %s\n' "${#checks[@]}" "${checks[*]}"
-
-  for check in "${checks[@]}"; do
-    local log
-    log=$(mktemp /tmp/ferro_prepush_XXXXXX)
-    logs+=("$log")
-    names+=("$check")
-    run_check "$check" >"$log" 2>&1 &
-    pids+=($!)
-  done
-
-  local failed=0
-  local -a failed_names
-  printf '\n'
-  for i in "${!pids[@]}"; do
-    if wait "${pids[$i]}" 2>/dev/null; then
-      printf '  ✓ %s\n' "${names[$i]}"
-    else
-      printf '  ✗ %s\n' "${names[$i]}"
-      failed_names+=("${names[$i]}")
-      failed=1
-    fi
-  done
-
-  # Print logs for failed checks only
-  if [[ "$failed" -eq 1 ]]; then
-    for i in "${!names[@]}"; do
-      local name="${names[$i]}"
-      if [[ " ${failed_names[*]:-} " == *" $name "* ]]; then
-        printf '\n'; printf '━%.0s' {1..60}; printf '\nFAILED: %s\n' "$name"; printf '━%.0s' {1..60}; printf '\n'
-        cat "${logs[$i]}"
-      fi
-    done
-  fi
-
-  for log in "${logs[@]}"; do rm -f "$log"; done
-  rm -f "$_MATURIN_LOCK" "$_MATURIN_FLAG"
-
-  printf '\nElapsed: %ds\n' "$(( $(date +%s) - start ))"
-  return "$failed"
-}
-
-# ---------------------------------------------------------------------------
-# Argument parsing
-# ---------------------------------------------------------------------------
-
-[[ "${1:-}" == "--help" || "${1:-}" == "-h" ]] && { usage; exit 0; }
-[[ "${1:-}" == "--list" ]] && { printf '%s\n' "${AVAILABLE_CHECKS[@]}"; exit 0; }
+if [[ "${1:-}" == "--list" ]]; then
+  list_checks
+  exit 0
+fi

 selected_checks=()
 if [[ "$#" -gt 0 ]]; then
  selected_checks=("$@")
 else
  selected_checks=("${DEFAULT_CHECKS[@]}")
-  if [[ "${FERRO_FAST:-0}" == "1" ]]; then
-    selected_checks=()
-    for c in "${DEFAULT_CHECKS[@]}"; do
-      [[ "$c" == "docs" || "$c" == "wasm" ]] && continue
-      selected_checks+=("$c")
-    done
-    printf 'FERRO_FAST=1: skipping docs + wasm\n'
-  fi
 fi

-# ---------------------------------------------------------------------------
-# Execution strategy:
-#   Phase 1 — instant gate (sequential, fail-fast):
-#              version, changelog, manifest, python_lint, rust_fmt
-#              These are trivial to run and catch the most common mistakes early.
-#              If any fail here we abort immediately without waiting for slow checks.
-#
-#   Phase 2 — everything else in parallel:
-#              rust_clippy, rust_core, rust_bench, python_typecheck,
-#              python_test, docs, wasm
-# ---------------------------------------------------------------------------
-
-FAST_CHECKS=(version changelog manifest python_lint rust_fmt)
-
-phase1=()
-phase2=()
-for c in "${selected_checks[@]}"; do
-  is_fast=0
-  for f in "${FAST_CHECKS[@]}"; do [[ "$c" == "$f" ]] && is_fast=1 && break; done
-  if [[ "$is_fast" -eq 1 ]]; then phase1+=("$c"); else phase2+=("$c"); fi
+total_checks="${#selected_checks[@]}"
+index=0
+for check_name in "${selected_checks[@]}"; do
+  index=$((index + 1))
+  printf '\n[%d/%d] %s\n' "$index" "$total_checks" "$check_name"
+  run_check "$check_name"
 done

-# Phase 1: fast gate
-if [[ "${#phase1[@]}" -gt 0 ]]; then
-  printf 'Phase 1 — fast gate (%d checks)\n' "${#phase1[@]}"
-  start1=$(date +%s)
-  for c in "${phase1[@]}"; do
-    printf '  [%s] ... ' "$c"
-    log=$(mktemp /tmp/ferro_prepush_XXXXXX)
-    if run_check "$c" >"$log" 2>&1; then
-      printf 'ok\n'
-    else
-      printf 'FAILED\n'
-      cat "$log"
-      rm -f "$log"
-      echo "" >&2
-      echo "Fast gate failed on '$c' — aborting before slow checks." >&2
-      exit 1
-    fi
-    rm -f "$log"
-  done
-  printf 'Phase 1 passed (%ds)\n' "$(( $(date +%s) - start1 ))"
-fi
-
-# Phase 2: parallel slow checks
-if [[ "${#phase2[@]}" -gt 0 ]]; then
-  printf '\nPhase 2 — parallel slow checks\n'
-  run_parallel "${phase2[@]}" || exit 1
-fi
-
-printf '\nAll pre-push checks passed.\n'
+printf '\nAll selected pre-push checks passed.\n'
@@ -1,98 +0,0 @@
-use ndarray::Array2;
-use numpy::{IntoPyArray, PyArray1, PyArray2, PyReadonlyArray1, PyReadonlyArray2};
-use pyo3::exceptions::PyValueError;
-use pyo3::prelude::*;
-use rayon::prelude::*;
-
-/// Dynamic Time Warping — distance and optimal warping path between two 1-D series.
-///
-/// Returns a tuple `(distance, path)` where `path` is a NumPy array of shape
-/// `(N, 2)` containing `(i, j)` index pairs from `(0, 0)` to `(n-1, m-1)`.
-///
-/// Local cost: `|series1[i] - series2[j]|` (Euclidean, matches `dtaidistance`).
-#[pyfunction]
-#[pyo3(signature = (series1, series2, window = None))]
-pub fn dtw<'py>(
-    py: Python<'py>,
-    series1: PyReadonlyArray1<'py, f64>,
-    series2: PyReadonlyArray1<'py, f64>,
-    window: Option<usize>,
-) -> PyResult<(f64, Bound<'py, PyArray2<usize>>)> {
-    let s1 = series1.as_slice()?;
-    let s2 = series2.as_slice()?;
-    if s1.is_empty() || s2.is_empty() {
-        return Err(PyValueError::new_err(
-            "series1 and series2 must not be empty",
-        ));
-    }
-    let (dist, path) = ferro_ta_core::statistic::dtw_path(s1, s2, window);
-    let n = path.len();
-    let flat: Vec<usize> = path.iter().flat_map(|&(i, j)| [i, j]).collect();
-    let arr =
-        Array2::from_shape_vec((n, 2), flat).map_err(|e| PyValueError::new_err(e.to_string()))?;
-    Ok((dist, arr.into_pyarray(py)))
-}
-
-/// Dynamic Time Warping — distance only (faster, no path reconstruction).
-///
-/// Returns the accumulated Euclidean cost along the optimal warping path.
-/// Use this when you only need the distance, not the alignment path.
-#[pyfunction]
-#[pyo3(signature = (series1, series2, window = None))]
-pub fn dtw_distance<'py>(
-    _py: Python<'py>,
-    series1: PyReadonlyArray1<'py, f64>,
-    series2: PyReadonlyArray1<'py, f64>,
-    window: Option<usize>,
-) -> PyResult<f64> {
-    let s1 = series1.as_slice()?;
-    let s2 = series2.as_slice()?;
-    if s1.is_empty() || s2.is_empty() {
-        return Err(PyValueError::new_err(
-            "series1 and series2 must not be empty",
-        ));
-    }
-    Ok(ferro_ta_core::statistic::dtw_distance(s1, s2, window))
-}
-
-/// Batch Dynamic Time Warping — compute DTW distance from each row of a 2-D matrix
-/// to a single reference series, in parallel.
-///
-/// Parameters
-/// ----------
-/// matrix : np.ndarray, shape (N, L)
-///     N time series of length L. Each row is compared against `reference`.
-/// reference : np.ndarray, shape (L,)
-///     The reference series.
-/// window : int, optional
-///     Sakoe-Chiba band width. `None` = unconstrained.
-///
-/// Returns
-/// -------
-/// np.ndarray, shape (N,)
-///     DTW distances, one per row.
-#[pyfunction]
-#[pyo3(signature = (matrix, reference, window = None))]
-pub fn batch_dtw<'py>(
-    py: Python<'py>,
-    matrix: PyReadonlyArray2<'py, f64>,
-    reference: PyReadonlyArray1<'py, f64>,
-    window: Option<usize>,
-) -> PyResult<Bound<'py, PyArray1<f64>>> {
-    let mat = matrix.as_array();
-    let ref_slice = reference.as_slice()?;
-
-    if ref_slice.is_empty() {
-        return Err(PyValueError::new_err("reference must not be empty"));
-    }
-
-    let (n_rows, _) = mat.dim();
-    let rows: Vec<Vec<f64>> = (0..n_rows).map(|i| mat.row(i).to_vec()).collect();
-
-    let result: Vec<f64> = rows
-        .par_iter()
-        .map(|series| ferro_ta_core::statistic::dtw_distance(series, ref_slice, window))
-        .collect();
-
-    Ok(result.into_pyarray(py))
-}
@@ -4,7 +4,6 @@
 mod beta;
 pub(crate) mod common;
 mod correl;
-mod dtw;
 mod linearreg;
 mod stddev;
 mod var;
@@ -24,8 +23,5 @@ pub fn register(m: &Bound<'_, PyModule>) -> PyResult<()> {
    m.add_function(pyo3::wrap_pyfunction!(self::linearreg::tsf, m)?)?;
    m.add_function(pyo3::wrap_pyfunction!(self::beta::beta, m)?)?;
    m.add_function(pyo3::wrap_pyfunction!(self::correl::correl, m)?)?;
-    m.add_function(pyo3::wrap_pyfunction!(self::dtw::dtw, m)?)?;
-    m.add_function(pyo3::wrap_pyfunction!(self::dtw::dtw_distance, m)?)?;
-    m.add_function(pyo3::wrap_pyfunction!(self::dtw::batch_dtw, m)?)?;
    Ok(())
 }
@@ -1,14 +1,10 @@
 """Unit tests for ferro_ta.indicators.statistic"""

 import numpy as np
-import pytest

 from ferro_ta.indicators.statistic import (
-    BATCH_DTW,
    BETA,
    CORREL,
-    DTW,
-    DTW_DISTANCE,
    LINEARREG,
    LINEARREG_ANGLE,
    LINEARREG_INTERCEPT,
@@ -312,177 +308,3 @@ class TestTSF:
        expected = _naive_linearreg(_A, timeperiod=14, x_value=14.0)
        result = TSF(_A, timeperiod=14)
        np.testing.assert_allclose(result, expected, equal_nan=True)
-
-
-# ---------------------------------------------------------------------------
-# DTW — Dynamic Time Warping
-# ---------------------------------------------------------------------------
-
-dtai = pytest.importorskip("dtaidistance", reason="dtaidistance not installed")
-
-_DTW_RNG = np.random.default_rng(42)
-
-
-class TestDTW:
-    # --- Validation against dtaidistance (SOTA reference) ---
-
-    def test_distance_matches_dtaidistance_random(self):
-        """Core correctness: our distance == dtaidistance on 20 random pairs."""
-        for _ in range(20):
-            n = int(_DTW_RNG.integers(5, 50))
-            a = _DTW_RNG.random(n)
-            b = _DTW_RNG.random(n)
-            expected = dtai.dtw.distance(a, b)
-            actual = DTW_DISTANCE(a, b)
-            np.testing.assert_allclose(
-                actual, expected, rtol=1e-9, err_msg=f"Mismatch on series length {n}"
-            )
-
-    def test_distance_matches_dtaidistance_unequal_length(self):
-        """Handles unequal-length series correctly."""
-        for _ in range(10):
-            a = _DTW_RNG.random(int(_DTW_RNG.integers(5, 30)))
-            b = _DTW_RNG.random(int(_DTW_RNG.integers(5, 30)))
-            expected = dtai.dtw.distance(a, b)
-            actual = DTW_DISTANCE(a, b)
-            np.testing.assert_allclose(actual, expected, rtol=1e-9)
-
-    def test_path_distance_matches_dtaidistance(self):
-        """DTW() path variant: returned distance matches dtaidistance."""
-        a = _DTW_RNG.random(20)
-        b = _DTW_RNG.random(25)
-        expected = dtai.dtw.distance(a, b)
-        dist, _ = DTW(a, b)
-        np.testing.assert_allclose(dist, expected, rtol=1e-9)
-
-    def test_path_matches_dtaidistance_warping_path(self):
-        """Warping path matches dtaidistance.dtw.warping_path() on same-length series."""
-        for _ in range(10):
-            n = int(_DTW_RNG.integers(5, 20))
-            a = _DTW_RNG.random(n)
-            b = _DTW_RNG.random(n)
-            expected_path = dtai.dtw.warping_path(a, b)
-            _, actual_path = DTW(a, b)
-            actual_pairs = [tuple(int(x) for x in row) for row in actual_path]
-            assert actual_pairs == expected_path, (
-                f"Path mismatch for n={n}:\n  ours={actual_pairs}\n  dtai={expected_path}"
-            )
-
-    def test_window_constrained_matches_dtaidistance(self):
-        """Sakoe-Chiba window matches dtaidistance window parameter."""
-        a = _DTW_RNG.random(30)
-        b = _DTW_RNG.random(30)
-        for w in [3, 8, 15]:
-            expected = dtai.dtw.distance(a, b, window=w)
-            actual = DTW_DISTANCE(a, b, window=w)
-            np.testing.assert_allclose(
-                actual, expected, rtol=1e-9, err_msg=f"Mismatch at window={w}"
-            )
-
-    def test_batch_matches_dtaidistance(self):
-        """BATCH_DTW matches calling dtaidistance per-row."""
-        ref = _DTW_RNG.random(20)
-        matrix = _DTW_RNG.random((8, 20))
-        batch_result = BATCH_DTW(matrix, ref)
-        for i in range(8):
-            expected = dtai.dtw.distance(matrix[i], ref)
-            np.testing.assert_allclose(
-                batch_result[i],
-                expected,
-                rtol=1e-9,
-                err_msg=f"Batch mismatch at row {i}",
-            )
-
-    # --- Mathematical properties ---
-
-    def test_identical_distance_is_zero(self):
-        a = np.array([1.0, 2.0, 3.0, 4.0, 5.0])
-        dist, _ = DTW(a, a)
-        assert dist == pytest.approx(0.0, abs=1e-10)
-
-    def test_symmetry(self):
-        a, b = _DTW_RNG.random(20), _DTW_RNG.random(20)
-        assert DTW_DISTANCE(a, b) == pytest.approx(DTW_DISTANCE(b, a), rel=1e-10)
-
-    def test_triangle_inequality(self):
-        a, b, c = _DTW_RNG.random(15), _DTW_RNG.random(15), _DTW_RNG.random(15)
-        assert DTW_DISTANCE(a, c) <= DTW_DISTANCE(a, b) + DTW_DISTANCE(b, c) + 1e-9
-
-    # --- Known hardcoded values ---
-
-    def test_known_shifted_series(self):
-        # [0,1,2] vs [1,2,3]: optimal path (0,0)→(1,0)→(2,1)→(2,2)
-        # Squared costs: 1+0+0+1=2, sqrt(2). Verified against dtaidistance.
-        a = np.array([0.0, 1.0, 2.0])
-        b = np.array([1.0, 2.0, 3.0])
-        np.testing.assert_allclose(DTW_DISTANCE(a, b), np.sqrt(2.0), rtol=1e-9)
-
-    def test_known_single_element(self):
-        # sqrt((3-7)^2) = sqrt(16) = 4.0
-        np.testing.assert_allclose(
-            DTW_DISTANCE(np.array([3.0]), np.array([7.0])), 4.0, rtol=1e-9
-        )
-
-    def test_known_constant_series(self):
-        assert DTW_DISTANCE(np.full(10, 5.0), np.full(10, 5.0)) == pytest.approx(
-            0.0, abs=1e-12
-        )
-
-    # --- Path structural guarantees ---
-
-    def test_path_starts_at_origin(self):
-        _, path = DTW(_DTW_RNG.random(10), _DTW_RNG.random(10))
-        assert tuple(int(x) for x in path[0]) == (0, 0)
-
-    def test_path_ends_at_corner(self):
-        _, path = DTW(_DTW_RNG.random(7), _DTW_RNG.random(9))
-        assert tuple(int(x) for x in path[-1]) == (6, 8)
-
-    def test_path_is_monotone(self):
-        _, path = DTW(_DTW_RNG.random(20), _DTW_RNG.random(20))
-        for k in range(1, len(path)):
-            assert path[k][0] >= path[k - 1][0]
-            assert path[k][1] >= path[k - 1][1]
-
-    def test_path_steps_unit_size(self):
-        _, path = DTW(_DTW_RNG.random(15), _DTW_RNG.random(12))
-        for k in range(1, len(path)):
-            di = int(path[k][0]) - int(path[k - 1][0])
-            dj = int(path[k][1]) - int(path[k - 1][1])
-            assert di in (0, 1) and dj in (0, 1)
-            assert not (di == 0 and dj == 0)
-
-    # --- DTW_DISTANCE == DTW distance ---
-
-    def test_distance_only_matches_full(self):
-        a, b = _DTW_RNG.random(25), _DTW_RNG.random(25)
-        d_full, _ = DTW(a, b)
-        np.testing.assert_allclose(DTW_DISTANCE(a, b), d_full, rtol=1e-10)
-
-    # --- Batch ---
-
-    def test_batch_single_row(self):
-        ref = np.array([1.0, 2.0, 3.0])
-        result = BATCH_DTW(np.array([[1.0, 2.0, 3.0]]), ref)
-        assert result[0] == pytest.approx(0.0, abs=1e-10)
-
-    def test_batch_matches_single_calls(self):
-        ref = _DTW_RNG.random(20)
-        matrix = _DTW_RNG.random((8, 20))
-        batch = BATCH_DTW(matrix, ref)
-        for i in range(8):
-            np.testing.assert_allclose(
-                batch[i], DTW_DISTANCE(matrix[i], ref), rtol=1e-10
-            )
-
-    # --- Edge cases ---
-
-    def test_empty_series_raises(self):
-        with pytest.raises((ValueError, Exception)):
-            DTW(np.array([]), np.array([1.0, 2.0]))
-
-    def test_window_constrained_ge_unconstrained(self):
-        a, b = _DTW_RNG.random(20), _DTW_RNG.random(20)
-        d_full = DTW_DISTANCE(a, b)
-        d_narrow = DTW_DISTANCE(a, b, window=2)
-        assert d_narrow >= d_full - 1e-9
@@ -950,7 +950,7 @@ wheels = [

 [[package]]
 name = "ferro-ta"
-version = "1.2.0"
+version = "1.1.3"
 source = { editable = "." }
 dependencies = [
    { name = "numpy" },
@@ -1272,11 +1272,11 @@ wheels = [

 [[package]]
 name = "idna"
-version = "3.18"
+version = "3.11"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/cd/63/9496c57188a2ee585e0f1db071d75089a11e98aa86eb99d9d7618fc1edce/idna-3.18.tar.gz", hash = "sha256:ffb385a7e039654cef1ab9ef32c6fafe283c0c0467bba1d9029738ce4a14a848", size = 196711, upload-time = "2026-06-02T14:34:07.794Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6f/6d/0703ccc57f3a7233505399edb88de3cbd678da106337b9fcde432b65ed60/idna-3.11.tar.gz", hash = "sha256:795dafcc9c04ed0c1fb032c2aa73654d8e8c5023a7df64a53f39190ada629902", size = 194582, upload-time = "2025-10-12T14:55:20.501Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/1e/5e/d4e9f1a599fb8e573b7b87160658329fbf28d19eac2718f51fc3def3aa5a/idna-3.18-py3-none-any.whl", hash = "sha256:7f952cbe720b688055e3f87de14f5c3e5fdaa8bc3928985c4077ca689de849a2", size = 65455, upload-time = "2026-06-02T14:34:06.319Z" },
+    { url = "https://files.pythonhosted.org/packages/0e/61/66938bbb5fc52dbdf84594873d5b51fb1f7c7794e9c0f5bd885f30bc507b/idna-3.11-py3-none-any.whl", hash = "sha256:771a87f49d9defaf64091e6e6fe9c18d4833f140bd19464795bc32d966ca37ea", size = 71008, upload-time = "2025-10-12T14:55:18.883Z" },
 ]

 [[package]]
@@ -2906,7 +2906,7 @@ wheels = [

 [[package]]
 name = "pytest"
-version = "9.1.1"
+version = "9.0.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
    { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -2917,9 +2917,9 @@ dependencies = [
    { name = "pygments" },
    { name = "tomli", marker = "python_full_version < '3.11'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e4/47/b9efed96c114afcfa3c9d3fe98a76a1d14c74a9e266d397cf6eb64be5e01/pytest-9.1.1.tar.gz", hash = "sha256:1088fbde8f2b49d95a549a195707afa7a76a3ce9bcadc26b6d71f0ffda5fe313", size = 1636369, upload-time = "2026-06-19T10:58:32.857Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/d1/db/7ef3487e0fb0049ddb5ce41d3a49c235bf9ad299b6a25d5780a89f19230f/pytest-9.0.2.tar.gz", hash = "sha256:75186651a92bd89611d1d9fc20f0b4345fd827c41ccd5c299a868a05d70edf11", size = 1568901, upload-time = "2025-12-06T21:30:51.014Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/24/25/1de2678b631f5a49215c6c96fff41ba892b0a34df68d6d80292b1b48aa7f/pytest-9.1.1-py3-none-any.whl", hash = "sha256:37a86b45efb9a47a61a36449063e8e18d0cab3161329fc099eb21783169c4f0c", size = 386536, upload-time = "2026-06-19T10:58:31.347Z" },
+    { url = "https://files.pythonhosted.org/packages/3b/ab/b3226f0bd7cdcf710fbede2b3548584366da3b19b5021e74f5bde2a8fa3f/pytest-9.0.2-py3-none-any.whl", hash = "sha256:711ffd45bf766d5264d487b917733b453d917afd2b0ad65223959f59089f875b", size = 374801, upload-time = "2025-12-06T21:30:49.154Z" },
 ]

 [[package]]
@@ -4261,11 +4261,11 @@ wheels = [

 [[package]]
 name = "urllib3"
-version = "2.7.0"
+version = "2.6.3"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/53/0c/06f8b233b8fd13b9e5ee11424ef85419ba0d8ba0b3138bf360be2ff56953/urllib3-2.7.0.tar.gz", hash = "sha256:231e0ec3b63ceb14667c67be60f2f2c40a518cb38b03af60abc813da26505f4c", size = 433602, upload-time = "2026-05-07T16:13:18.596Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/c7/24/5f1b3bdffd70275f6661c76461e25f024d5a38a46f04aaca912426a2b1d3/urllib3-2.6.3.tar.gz", hash = "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed", size = 435556, upload-time = "2026-01-07T16:24:43.925Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/7f/3e/5db95bcf282c52709639744ca2a8b149baccf648e39c8cc87553df9eae0c/urllib3-2.7.0-py3-none-any.whl", hash = "sha256:9fb4c81ebbb1ce9531cce37674bbc6f1360472bc18ca9a553ede278ef7276897", size = 131087, upload-time = "2026-05-07T16:13:17.151Z" },
+    { url = "https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl", hash = "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4", size = 131584, upload-time = "2026-01-07T16:24:42.685Z" },
 ]

 [[package]]
@@ -49,11 +49,11 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"

 [[package]]
 name = "ferro_ta_core"
-version = "1.2.0"
+version = "1.1.3"

 [[package]]
 name = "ferro_ta_wasm"
-version = "1.2.0"
+version = "1.1.3"
 dependencies = [
 "ferro_ta_core",
 "js-sys",
@@ -1,6 +1,6 @@
 [package]
 name = "ferro_ta_wasm"
-version = "1.2.0"
+version = "1.1.3"
 edition = "2021"
 description = "WebAssembly bindings for ferro-ta technical analysis indicators"
 license = "MIT"
@@ -1,6 +1,6 @@
 {
  "name": "ferro-ta-wasm",
-  "version": "1.2.0",
+  "version": "1.1.3",
  "description": "WebAssembly bindings for ferro-ta technical analysis indicators",
  "main": "node/ferro_ta_wasm.js",
  "module": "web/ferro_ta_wasm.js",
@@ -1653,18 +1653,6 @@ pub fn correl(real0: &Float64Array, real1: &Float64Array, timeperiod: usize) ->
    from_vec(ferro_ta_core::statistic::correl(&to_vec(real0), &to_vec(real1), timeperiod))
 }

-/// Dynamic Time Warping distance between two series.
-///
-/// Returns the accumulated Euclidean cost along the optimal warping path.
-/// Pass `window` as `0` for unconstrained (no Sakoe-Chiba band).
-#[wasm_bindgen]
-pub fn dtw_distance(series1: &Float64Array, series2: &Float64Array, window: usize) -> f64 {
-    let s1 = to_vec(series1);
-    let s2 = to_vec(series2);
-    let w = if window == 0 { None } else { Some(window) };
-    ferro_ta_core::statistic::dtw_distance(&s1, &s2, w)
-}
-
 // ===========================================================================
 // Streaming / Stateful API
 // ===========================================================================