From 989ce66d9c2226cc4b0e9de888e8f917216aa873 Mon Sep 17 00:00:00 2001
From: Bishwas Jha <bishwasjha@Bishwass-MacBook-Pro.local>
Date: Sun, 19 Apr 2026 07:45:06 +0200
Subject: [PATCH 01/18] ci(publish): add PyPI publish pipeline via Trusted
 Publishing (OIDC)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Adds a two-stage publish workflow that ships python_maithili to
PyPI without storing long-lived API tokens in GitHub. Three
triggers, three behaviours:

  - release.published (non-prerelease) -> publishes to production
    PyPI (environment: pypi, with optional manual-approval gate)
  - release.published (prerelease) OR workflow_dispatch target=testpypi
    -> publishes to TestPyPI (environment: testpypi, staging/verification)
  - workflow_dispatch target=build-only -> builds + twine-checks, no
    network publish (credential-free dry run)

Every path runs the same build job first: python -m build, twine
check --strict, install the wheel in a clean venv, run the full
pytest suite against the installed wheel. Only if the wheel itself
passes the test suite does anything get uploaded. The production
job additionally verifies that the GitHub Release tag (v0.X.Y)
matches __version__ in the package and refuses to publish on
mismatch — preventing accidental version drift.

Trusted Publishing was chosen over API tokens because:

  - No secrets to rotate or leak.
  - Scoped per environment: the pypi environment can be gated with
    required reviewers and tag-only deployment branches.
  - PyPI binds the trust to (owner, repo, workflow filename,
    environment), so a fork or a different workflow cannot publish
    on your behalf even if it runs on this repo.

The one-time setup (register Trusted Publisher on PyPI and pending
publisher on TestPyPI, create pypi + testpypi GitHub Environments)
is documented in the new docs/RELEASE.md, along with the routine
release checklist, version-bump convention, and recovery procedure
for bad releases.

build + twine added to requirements-dev.txt so contributors can
reproduce the build locally before opening a release PR.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 .github/workflows/publish.yml | 192 ++++++++++++++++++++++++++++++++++
 CHANGELOG.md                  |  14 ++-
 CONTRIBUTING.md               |   8 ++
 docs/RELEASE.md               | 163 +++++++++++++++++++++++++++++
 requirements-dev.txt          |   4 +
 5 files changed, 380 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/publish.yml
 create mode 100644 docs/RELEASE.md

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..0c12493
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,192 @@
+name: Publish to PyPI
+
+# Trusted Publishing (OIDC) — no long-lived API tokens stored.
+#
+# Triggers:
+#   - release.published on a non-prerelease GitHub Release
+#       → publishes to PyPI (environment: pypi)
+#   - release.published on a pre-release GitHub Release
+#       → publishes to TestPyPI (environment: testpypi)
+#   - workflow_dispatch with target=testpypi
+#       → publishes to TestPyPI (staging verification)
+#   - workflow_dispatch with target=build-only
+#       → builds + twine-checks, no network publish (dry run)
+#
+# One-time setup required before the publish jobs succeed:
+#   See docs/RELEASE.md for Trusted Publisher configuration on
+#   pypi.org and test.pypi.org.
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      target:
+        description: "Publish target"
+        required: true
+        default: "build-only"
+        type: choice
+        options:
+          - build-only
+          - testpypi
+
+concurrency:
+  group: publish-${{ github.event_name }}-${{ github.ref }}
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+
+jobs:
+  # ------------------------------------------------------------------
+  # Build sdist + wheel, run twine check, run the full test suite
+  # against the built wheel so we never ship a wheel that fails tests.
+  # ------------------------------------------------------------------
+  build:
+    name: Build distributions
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    outputs:
+      version: ${{ steps.version.outputs.value }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+          cache-dependency-path: requirements-dev.txt
+
+      - name: Install build tooling
+        run: |
+          python -m pip install --upgrade pip
+          pip install build twine
+
+      - name: Extract version from package
+        id: version
+        run: |
+          v=$(python -c "import re, pathlib; print(re.search(r'^__version__\s*=\s*[\"\']([^\"\']+)', pathlib.Path('maithili_dsl/__init__.py').read_text(), re.M).group(1))")
+          echo "value=$v" >> "$GITHUB_OUTPUT"
+          echo "Package version: $v"
+
+      - name: Build sdist + wheel
+        run: python -m build
+
+      - name: twine check
+        run: twine check --strict dist/*
+
+      - name: Install built wheel in clean venv
+        run: |
+          python -m venv /tmp/smoketest
+          /tmp/smoketest/bin/pip install dist/*.whl
+          /tmp/smoketest/bin/python -m maithili_dsl --version
+          /tmp/smoketest/bin/python_maithili examples/hello.dmai
+
+      - name: Run tests against the installed wheel
+        run: |
+          /tmp/smoketest/bin/pip install -r requirements-dev.txt
+          /tmp/smoketest/bin/pytest -q --no-cov
+
+      - name: Upload distributions artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+          if-no-files-found: error
+          retention-days: 7
+
+  # ------------------------------------------------------------------
+  # TestPyPI — fires on workflow_dispatch (target=testpypi) or on
+  # a pre-release GitHub Release. Safe to re-run with a different
+  # version number.
+  # ------------------------------------------------------------------
+  publish-testpypi:
+    name: Publish to TestPyPI
+    needs: [build]
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    if: |
+      (github.event_name == 'workflow_dispatch' && inputs.target == 'testpypi') ||
+      (github.event_name == 'release' && github.event.release.prerelease == true)
+    environment:
+      name: testpypi
+      url: https://test.pypi.org/p/python-maithili
+    permissions:
+      id-token: write  # OIDC token for Trusted Publishing
+    steps:
+      - name: Download distributions
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+      - name: Publish to TestPyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
+          skip-existing: false
+          verbose: true
+
+      - name: Summary
+        run: |
+          echo "### Published to TestPyPI :rocket:" >> "$GITHUB_STEP_SUMMARY"
+          echo "" >> "$GITHUB_STEP_SUMMARY"
+          echo "Version: **${{ needs.build.outputs.version }}**" >> "$GITHUB_STEP_SUMMARY"
+          echo "" >> "$GITHUB_STEP_SUMMARY"
+          echo "\`\`\`bash" >> "$GITHUB_STEP_SUMMARY"
+          echo "pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/ python-maithili==${{ needs.build.outputs.version }}" >> "$GITHUB_STEP_SUMMARY"
+          echo "\`\`\`" >> "$GITHUB_STEP_SUMMARY"
+
+  # ------------------------------------------------------------------
+  # Production PyPI — fires only on a non-prerelease GitHub Release.
+  # This is the single authoritative way to publish a real version.
+  # ------------------------------------------------------------------
+  publish-pypi:
+    name: Publish to PyPI
+    needs: [build]
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    if: |
+      github.event_name == 'release' && github.event.release.prerelease == false
+    environment:
+      name: pypi
+      url: https://pypi.org/p/python-maithili
+    permissions:
+      id-token: write  # OIDC token for Trusted Publishing
+    steps:
+      - name: Download distributions
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+      - name: Verify release tag matches package version
+        env:
+          TAG: ${{ github.event.release.tag_name }}
+          VERSION: ${{ needs.build.outputs.version }}
+        run: |
+          expected="v${VERSION}"
+          if [ "$TAG" != "$expected" ]; then
+            echo "::error::Release tag '$TAG' does not match package version '$expected'. Refusing to publish."
+            exit 1
+          fi
+          echo "Tag $TAG matches package version $VERSION — proceeding."
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          skip-existing: false
+          verbose: true
+
+      - name: Summary
+        run: |
+          echo "### Published to PyPI :tada:" >> "$GITHUB_STEP_SUMMARY"
+          echo "" >> "$GITHUB_STEP_SUMMARY"
+          echo "Version: **${{ needs.build.outputs.version }}**" >> "$GITHUB_STEP_SUMMARY"
+          echo "" >> "$GITHUB_STEP_SUMMARY"
+          echo "\`\`\`bash" >> "$GITHUB_STEP_SUMMARY"
+          echo "pip install python-maithili==${{ needs.build.outputs.version }}" >> "$GITHUB_STEP_SUMMARY"
+          echo "\`\`\`" >> "$GITHUB_STEP_SUMMARY"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3c4cc3..222e0b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-_Nothing yet. Open a PR to add your change here._
+### Added
+- **PyPI publish pipeline** (`.github/workflows/publish.yml`) using
+  Trusted Publishing (OIDC). Triggers: GitHub Release for production
+  PyPI, pre-release or `workflow_dispatch` for TestPyPI, `build-only`
+  dispatch for a credential-free dry run. The workflow builds sdist +
+  wheel, runs `twine check --strict`, installs the wheel in a clean
+  venv, runs the full pytest suite against the installed wheel, and
+  verifies the release tag matches `__version__` before publishing.
+- **`docs/RELEASE.md`** — step-by-step release process including
+  one-time Trusted Publisher setup on PyPI + TestPyPI, routine
+  release flow, version-bump convention, and recovery procedure for
+  bad releases.
+- **`build` and `twine`** added to `requirements-dev.txt`.
 
 ## [0.3.0] — 2026-04-17
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8a9c50a..ea79560 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -87,4 +87,12 @@ import whitelist (`MAITHILI_MODULES`), or the safe-builtins list
 4. Open a Pull Request targeting `development`. The PR template will
    prompt you for test evidence and any security considerations.
 
+## 📦 Releasing
+
+Releases are cut by a project maintainer following the checklist in
+[`docs/RELEASE.md`](docs/RELEASE.md). The short version:
+publishing is triggered by creating a **GitHub Release** and uses
+**Trusted Publishing (OIDC)** — no long-lived PyPI tokens are stored
+in the repo.
+
 Thanks for your interest! ❤️
diff --git a/docs/RELEASE.md b/docs/RELEASE.md
new file mode 100644
index 0000000..3c15485
--- /dev/null
+++ b/docs/RELEASE.md
@@ -0,0 +1,163 @@
+# Release Process
+
+This document describes how to cut a new release of `python_maithili`
+to PyPI. The workflow is **`.github/workflows/publish.yml`** and uses
+**Trusted Publishing (OIDC)** — no API tokens are stored in GitHub.
+
+---
+
+## One-time setup (required before the first publish succeeds)
+
+### 1. Create GitHub Environments
+
+In the repo, go to **Settings → Environments** and create two
+environments — they give us a place to pin the OIDC trust and (for
+production) an optional manual-approval gate.
+
+#### `testpypi`
+- No required reviewers.
+- Deployment branches: all branches (we publish to TestPyPI from
+  feature branches too).
+
+#### `pypi`
+- **Required reviewers**: add yourself. Every production publish will
+  wait for explicit approval. This is the final safety gate.
+- Deployment branches: protected tags matching `v*` only
+  (`v[0-9]+.[0-9]+.[0-9]+` and `v[0-9]+.[0-9]+.[0-9]+-*`).
+
+### 2. Register the Trusted Publisher on PyPI
+
+Go to <https://pypi.org/manage/project/python-maithili/settings/publishing/>
+(owner only) and add a new "Trusted publisher":
+
+| Field               | Value                          |
+|---------------------|--------------------------------|
+| Owner               | `alphacrack`                   |
+| Repository          | `python-maithili-dsl`          |
+| Workflow filename   | `publish.yml`                  |
+| Environment name    | `pypi`                         |
+
+### 3. Register the Trusted Publisher on TestPyPI
+
+TestPyPI doesn't have the project yet, so use a **pending publisher**.
+Go to <https://test.pypi.org/manage/account/publishing/> and under
+"Pending trusted publishers" add:
+
+| Field               | Value                          |
+|---------------------|--------------------------------|
+| PyPI Project Name   | `python-maithili`              |
+| Owner               | `alphacrack`                   |
+| Repository          | `python-maithili-dsl`          |
+| Workflow filename   | `publish.yml`                  |
+| Environment name    | `testpypi`                     |
+
+The pending publisher converts to a real one the first time a workflow
+run successfully creates the project on TestPyPI.
+
+---
+
+## Routine release workflow
+
+### A. Dry-run build (no publish)
+
+Push a PR or run **Actions → Publish to PyPI → Run workflow → `build-only`**.
+This executes the full pipeline except the publish step:
+
+- Build sdist + wheel.
+- `twine check --strict` metadata validation.
+- Install the wheel in a clean venv.
+- Run the full pytest suite against the installed wheel.
+- Upload the `dist/` artifact for inspection.
+
+No credentials are required and nothing touches the network package
+indexes. Use this whenever you want to confirm the package will build.
+
+### B. Publish to TestPyPI (staging verification)
+
+Two ways to trigger:
+
+1. **Manual**: Actions → Publish to PyPI → Run workflow → `testpypi`.
+2. **Automatic**: create a GitHub **pre-release** (check "This is a
+   pre-release" when making the Release). Tag format: `v0.X.Y-rc1`,
+   `v0.X.Y-dev1`, etc.
+
+Version numbers you publish to TestPyPI are **separate** from
+production PyPI — TestPyPI has its own index. Verify the install:
+
+```bash
+pip install \
+  --index-url https://test.pypi.org/simple/ \
+  --extra-index-url https://pypi.org/simple/ \
+  python-maithili==0.X.Y
+python_maithili --version
+```
+
+Any version on TestPyPI cannot be re-used. If you need to iterate,
+bump the version (`0.3.0.dev0`, `0.3.0.dev1`, ...) in
+`maithili_dsl/__init__.py` before re-triggering.
+
+### C. Publish to production PyPI
+
+**Pre-flight checklist:**
+
+- [ ] `CHANGELOG.md` has a section for the new version with date filled in.
+- [ ] `maithili_dsl/__init__.py` has `__version__` set to the new version.
+- [ ] `pyproject.toml` has matching `version = "..."`.
+- [ ] `pytest` runs green on `main` CI.
+- [ ] The same version was successfully published to TestPyPI and installed
+      cleanly (step B).
+
+**Cut the release:**
+
+1. Ensure `main` has the final release commit on it (all three version
+   strings updated, CHANGELOG finalized).
+2. Create a new **GitHub Release** (not a pre-release):
+   - Tag: `v0.X.Y` (must match `__version__` exactly; the workflow
+     enforces this and refuses to publish on mismatch).
+   - Target: `main`.
+   - Title: `v0.X.Y`.
+   - Body: the corresponding CHANGELOG section.
+   - Leave "This is a pre-release" **unchecked**.
+3. Click **Publish release**. The workflow fires.
+4. If the `pypi` environment has required reviewers, approve the
+   deployment in the Actions run.
+5. After the run finishes, verify:
+
+   ```bash
+   pip install python-maithili==0.X.Y
+   python_maithili --version
+   ```
+
+---
+
+## Version bump convention
+
+This project uses [Semantic Versioning](https://semver.org/):
+
+| Change                                         | Bump  |
+|------------------------------------------------|-------|
+| Breaking API change (exit code semantics, etc) | MAJOR |
+| New keyword / module / feature                 | MINOR |
+| Bugfix, doc change, internal refactor          | PATCH |
+
+Version is tracked in three places that must stay in sync:
+
+1. `maithili_dsl/__init__.py` — `__version__` (single source of truth).
+2. `pyproject.toml` — `version`.
+3. `CHANGELOG.md` — section header and date.
+
+The publish workflow's "Verify release tag matches package version"
+step will fail the production publish if these drift.
+
+---
+
+## Recovery: what if a bad version reaches PyPI?
+
+PyPI does not allow re-uploading the same filename. If you published
+a broken release:
+
+1. **Yank** (do not delete) the broken version on PyPI:
+   <https://pypi.org/manage/project/python-maithili/releases/> →
+   pick the version → "Yank release". This hides it from `pip install`
+   without breaking already-pinned consumers.
+2. Bump PATCH and release the fix via the normal flow above.
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3a4df92..d3b271c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,3 +3,7 @@
 pytest>=7.4,<9
 pytest-cov>=4.1,<6
 pytest-timeout>=2.2,<3
+
+# Build + release tooling (used by docs/RELEASE.md workflow).
+build>=1.0,<2
+twine>=4.0,<6

From a9752e5d2a3407430d9707fe688dae5837c98e13 Mon Sep 17 00:00:00 2001
From: alphacrack <18480504+alphacrack@users.noreply.github.com>
Date: Sun, 19 Jul 2026 16:54:24 +0200
Subject: [PATCH 02/18] chore: add OSS community health files

- Issue templates (bug report, feature request, Maithili keyword proposal)
- CODE_OF_CONDUCT.md (Contributor Covenant 2.1)
- SUPPORT.md and issue template contact links (security reporting routed privately)
- CODEOWNERS for security-sensitive paths
- Label guide in CONTRIBUTING.md; CoC links in README/CONTRIBUTING
- Mark BACKLOG.md as historical (tracking moved to GitHub Issues)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 .github/CODEOWNERS                          |   8 ++
 .github/ISSUE_TEMPLATE/bug_report.yml       |  69 ++++++++++
 .github/ISSUE_TEMPLATE/config.yml           |   8 ++
 .github/ISSUE_TEMPLATE/feature_request.yml  |  36 ++++++
 .github/ISSUE_TEMPLATE/keyword_proposal.yml |  57 +++++++++
 BACKLOG.md                                  |   6 +-
 CODE_OF_CONDUCT.md                          | 132 ++++++++++++++++++++
 CONTRIBUTING.md                             |  24 ++++
 README.md                                   |   3 +
 SUPPORT.md                                  |  27 ++++
 10 files changed, 368 insertions(+), 2 deletions(-)
 create mode 100644 .github/CODEOWNERS
 create mode 100644 .github/ISSUE_TEMPLATE/bug_report.yml
 create mode 100644 .github/ISSUE_TEMPLATE/config.yml
 create mode 100644 .github/ISSUE_TEMPLATE/feature_request.yml
 create mode 100644 .github/ISSUE_TEMPLATE/keyword_proposal.yml
 create mode 100644 CODE_OF_CONDUCT.md
 create mode 100644 SUPPORT.md

diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..e18e147
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,8 @@
+# Default owner for everything in the repo.
+* @alphacrack
+
+# Security-sensitive paths: sandbox, transpiler string handling, CI/publish.
+/maithili_dsl/cli.py            @alphacrack
+/maithili_dsl/transpiler/       @alphacrack
+/.github/workflows/             @alphacrack
+/SECURITY.md                    @alphacrack
diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
new file mode 100644
index 0000000..30474fc
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -0,0 +1,69 @@
+name: 🐛 Bug report
+description: Something in the transpiler, linter, sandbox, or CLI doesn't work as documented.
+title: "[BUG] "
+labels: ["bug", "needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug! धन्यवाद 🙏
+
+        ⚠️ **Security issues** (sandbox escapes, exec bypasses) must NOT be reported here.
+        Use [private vulnerability reporting](https://github.com/alphacrack/python-maithili-dsl/security/advisories/new)
+        or the process in [SECURITY.md](https://github.com/alphacrack/python-maithili-dsl/blob/main/SECURITY.md).
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      description: A clear description of the bug.
+    validations:
+      required: true
+  - type: textarea
+    id: repro
+    attributes:
+      label: Minimal .dmai reproduction
+      description: The smallest Maithili snippet that triggers the bug.
+      placeholder: |
+        छपाउ("यह में है")
+      render: text
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What you expected to happen (e.g. the transpiled Python, or output).
+    validations:
+      required: true
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual behavior
+      description: What actually happened. Paste the full output / traceback.
+      render: shell
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: python_maithili version
+      description: Output of `python_maithili --version`
+      placeholder: "0.3.0"
+    validations:
+      required: true
+  - type: input
+    id: environment
+    attributes:
+      label: Python version and OS
+      placeholder: "Python 3.12, macOS 15"
+    validations:
+      required: true
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: Checks
+      options:
+        - label: I searched existing issues and this is not a duplicate.
+          required: true
+        - label: This is not a security vulnerability (those go through SECURITY.md).
+          required: true
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
new file mode 100644
index 0000000..408d7d2
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1,8 @@
+blank_issues_enabled: true
+contact_links:
+  - name: 🔐 Report a security vulnerability
+    url: https://github.com/alphacrack/python-maithili-dsl/security/advisories/new
+    about: Sandbox escapes and exec bypasses must be reported privately — never as a public issue. See SECURITY.md.
+  - name: 💬 Questions & general discussion
+    url: https://github.com/alphacrack/python-maithili-dsl/blob/main/README.md
+    about: Check the README and docs first; for usage questions, open a blank issue with the "question" label.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml
new file mode 100644
index 0000000..32d94be
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -0,0 +1,36 @@
+name: ✨ Feature request
+description: Propose a new capability for the DSL, CLI, or tooling.
+title: "[FEATURE] "
+labels: ["enhancement", "needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        For a **new Maithili keyword or module mapping**, please use the
+        dedicated "🔤 Keyword / mapping proposal" template instead.
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem
+      description: What problem does this solve? Who benefits?
+    validations:
+      required: true
+  - type: textarea
+    id: proposal
+    attributes:
+      label: Proposed solution
+      description: What you'd like to see, ideally with an example `.dmai` snippet.
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Other approaches you thought about, and why they're worse.
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: Checks
+      options:
+        - label: I searched existing issues and BACKLOG.md and this is not already tracked.
+          required: true
diff --git a/.github/ISSUE_TEMPLATE/keyword_proposal.yml b/.github/ISSUE_TEMPLATE/keyword_proposal.yml
new file mode 100644
index 0000000..87cc6bb
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/keyword_proposal.yml
@@ -0,0 +1,57 @@
+name: 🔤 Keyword / mapping proposal
+description: Propose a new Maithili keyword, builtin, or module-name mapping.
+title: "[KEYWORD] "
+labels: ["enhancement", "keyword-mapping", "needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Keyword choices shape the language for every Maithili speaker, so
+        native-speaker input on word choice is especially valuable here.
+  - type: input
+    id: maithili
+    attributes:
+      label: Proposed Maithili word (Devanagari)
+      placeholder: "जबतक"
+    validations:
+      required: true
+  - type: input
+    id: python
+    attributes:
+      label: Python equivalent
+      placeholder: "while"
+    validations:
+      required: true
+  - type: textarea
+    id: rationale
+    attributes:
+      label: Why this word?
+      description: |
+        Is this the natural Maithili term? Are there regional variants or
+        alternative spellings a reader might expect? Could it collide with
+        an existing keyword or with common identifier names?
+    validations:
+      required: true
+  - type: textarea
+    id: example
+    attributes:
+      label: Example usage
+      description: A short `.dmai` snippet showing the keyword in use, with the expected transpiled Python.
+      render: text
+      placeholder: |
+        गिनती = ०
+        जबतक गिनती < ५:
+            छपाउ(गिनती)
+            गिनती = गिनती + १
+    validations:
+      required: true
+  - type: dropdown
+    id: speaker
+    attributes:
+      label: Are you a Maithili speaker?
+      options:
+        - "Yes — native"
+        - "Yes — non-native / learner"
+        - "No — proposing on technical grounds only"
+    validations:
+      required: true
diff --git a/BACKLOG.md b/BACKLOG.md
index 19de5e7..3b1e420 100644
--- a/BACKLOG.md
+++ b/BACKLOG.md
@@ -1,7 +1,9 @@
 # Maithili DSL — Project Backlog
 
-> Generated: 2026-04-11 | Status: Active
-> Tracking: GitHub Issues (use `scripts/create_issues.sh` to push)
+> Generated: 2026-04-11 | Status: **Historical snapshot**
+> Live tracking has moved to [GitHub Issues](https://github.com/alphacrack/python-maithili-dsl/issues).
+> All P0 and P1 items below (plus items 11, 13–15, 19) have been resolved as of v0.3.0;
+> the remaining open items are tracked as individual issues.
 
 ---
 
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..25ef0ac
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,132 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, caste, color, religion, or sexual
+identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the overall
+  community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or advances
+  of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email address,
+  without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+**jha.bishwas@gmail.com**.
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series of
+actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or permanent
+ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within the
+community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.1, available at
+[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
+
+Community Impact Guidelines were inspired by
+[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
+
+For answers to common questions about this code of conduct, see the FAQ at
+[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
+[https://www.contributor-covenant.org/translations][translations].
+
+[homepage]: https://www.contributor-covenant.org
+[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
+[Mozilla CoC]: https://github.com/mozilla/diversity
+[FAQ]: https://www.contributor-covenant.org/faq
+[translations]: https://www.contributor-covenant.org/translations
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ea79560..612a80a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,6 +4,9 @@ Welcome! Your contributions help make the Maithili DSL stronger and more
 accessible. This guide covers local setup, the test workflow, and how to
 submit a change for review.
 
+This project follows the [Contributor Covenant Code of Conduct](CODE_OF_CONDUCT.md).
+By participating, you are expected to uphold it.
+
 ---
 
 ## 🛠 Development setup
@@ -74,6 +77,27 @@ import whitelist (`MAITHILI_MODULES`), or the safe-builtins list
 - ✍️ Translate documentation into Maithili
 - 🔐 Report a security vulnerability via the process in `SECURITY.md`
 
+### Finding something to work on
+
+Issues labeled [`good first issue`](https://github.com/alphacrack/python-maithili-dsl/labels/good%20first%20issue)
+are scoped for newcomers; [`help wanted`](https://github.com/alphacrack/python-maithili-dsl/labels/help%20wanted)
+issues are open to anyone. Labels follow a simple scheme:
+
+| Label group | Meaning |
+|-------------|---------|
+| `P0`–`P3` | Priority, from critical to nice-to-have |
+| `bug`, `enhancement`, `documentation`, `question` | Issue type |
+| `security`, `testing`, `infra`, `packaging`, `quality`, `compliance` | Category |
+| `area:transpiler`, `area:linter`, `area:cli` | Part of the codebase affected |
+| `keyword-mapping` | Proposals for new Maithili keywords or module mappings |
+| `translation` | Translating docs or messages into Maithili |
+| `needs-triage` | New issue awaiting a maintainer's look |
+
+Comment on an issue before starting significant work so it can be assigned
+to you and effort isn't duplicated. New keyword ideas should go through the
+**🔤 Keyword / mapping proposal** issue template — native-speaker input on
+word choice is especially welcome.
+
 ---
 
 ## 📬 Submitting changes
diff --git a/README.md b/README.md
index f6e1b84..16d69c3 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,9 @@ workflow.
 
 ## 🤝 Contributing
 See [`CONTRIBUTING.md`](CONTRIBUTING.md) to learn how you can help build and improve this DSL.
+Good entry points are issues labeled
+[`good first issue`](https://github.com/alphacrack/python-maithili-dsl/labels/good%20first%20issue).
+This project follows the [Contributor Covenant Code of Conduct](CODE_OF_CONDUCT.md).
 
 ---
 
diff --git a/SUPPORT.md b/SUPPORT.md
new file mode 100644
index 0000000..a790e6d
--- /dev/null
+++ b/SUPPORT.md
@@ -0,0 +1,27 @@
+# Getting Help
+
+## 📚 Documentation
+
+- [README](README.md) — installation, keyword table, module mappings, examples
+- [CONTRIBUTING](CONTRIBUTING.md) — development setup and PR workflow
+- [`examples/`](examples/) — runnable `.dmai` programs
+
+## 🐛 Found a bug?
+
+Open a [bug report](https://github.com/alphacrack/python-maithili-dsl/issues/new?template=bug_report.yml)
+with a minimal `.dmai` reproduction.
+
+## ✨ Want a feature or a new keyword?
+
+- New Maithili keyword or module mapping → [keyword proposal](https://github.com/alphacrack/python-maithili-dsl/issues/new?template=keyword_proposal.yml)
+- Anything else → [feature request](https://github.com/alphacrack/python-maithili-dsl/issues/new?template=feature_request.yml)
+
+## ❓ Usage questions
+
+Open a blank issue and add the `question` label. Please include your
+`python_maithili --version` output and a code snippet.
+
+## 🔐 Security issues
+
+**Never open a public issue.** Follow [SECURITY.md](SECURITY.md) —
+email or use [private vulnerability reporting](https://github.com/alphacrack/python-maithili-dsl/security/advisories/new).

From 6704662cdc7c0067416dc203a684e33c2827bf27 Mon Sep 17 00:00:00 2001
From: alphacrack <18480504+alphacrack@users.noreply.github.com>
Date: Sun, 19 Jul 2026 17:04:39 +0200
Subject: [PATCH 03/18] ci: add ci-ok aggregate gate job + Dependabot config

- ci-ok: single required-status-check target that fails if any test
  matrix leg fails, so branch protection survives matrix changes
- dependabot.yml: weekly github-actions + pip updates targeting
  development, labeled infra/needs-triage

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 .github/dependabot.yml   | 18 ++++++++++++++++++
 .github/workflows/ci.yml | 16 ++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 .github/dependabot.yml

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..b3d7aae
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,18 @@
+version: 2
+updates:
+  # Keep GitHub Actions pinned versions current (checkout, setup-python, etc.)
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: "development"
+    labels: ["infra", "needs-triage"]
+
+  # Dev dependencies (pytest, coverage tooling). The package itself has
+  # zero runtime deps, so this mostly tracks requirements-dev.txt.
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: "development"
+    labels: ["infra", "needs-triage"]
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 41e9f9c..e9fed0d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -75,3 +75,19 @@ jobs:
           name: coverage-xml
           path: coverage.xml
           if-no-files-found: warn
+
+  # Aggregate gate: branch protection requires this single check instead of
+  # every matrix leg, so the matrix can change without touching repo settings.
+  ci-ok:
+    name: ci-ok
+    if: always()
+    needs: [test]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fail if any test job failed
+        run: |
+          if [ "${{ needs.test.result }}" != "success" ]; then
+            echo "test matrix result: ${{ needs.test.result }}"
+            exit 1
+          fi
+          echo "all test jobs green"

From 21e8df9a6c43052b0e4a2af7f2b3624f468eebd2 Mon Sep 17 00:00:00 2001
From: Sanjay Santhanam <51058514+Sanjays2402@users.noreply.github.com>
Date: Sun, 19 Jul 2026 08:44:08 -0700
Subject: [PATCH 04/18] fix(linter): accept augmented assignments

Strip augmented-assignment operators before validating the target name. Add regression coverage for every reported arithmetic operator.
---
 CHANGELOG.md                      | 3 +++
 maithili_dsl/transpiler/linter.py | 3 +++
 tests/test_linter.py              | 7 +++++++
 3 files changed, 13 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 222e0b0..2a6d508 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+- Augmented assignments no longer produce invalid-variable-name linter errors.
+
 ### Added
 - **PyPI publish pipeline** (`.github/workflows/publish.yml`) using
   Trusted Publishing (OIDC). Triggers: GitHub Release for production
diff --git a/maithili_dsl/transpiler/linter.py b/maithili_dsl/transpiler/linter.py
index 0459e93..03ce3fa 100644
--- a/maithili_dsl/transpiler/linter.py
+++ b/maithili_dsl/transpiler/linter.py
@@ -66,6 +66,9 @@ def lint_maithili_code(code, config=LINT_CONFIG):
                 pass  # == comparison
             else:
                 left_side = stripped.split("=")[0].strip()
+                left_side = re.sub(
+                    r"(?:\*\*|//|[+\-*/%])$", "", left_side
+                ).rstrip()
                 # Skip print statements, function calls, and attribute assignments (e.g., स्वयं.नाम)
                 if not (stripped.startswith("छपाउ(") or "(" in left_side
                         or left_side.startswith("छपाउ") or "." in left_side):
diff --git a/tests/test_linter.py b/tests/test_linter.py
index e13bf93..ab44ac8 100644
--- a/tests/test_linter.py
+++ b/tests/test_linter.py
@@ -78,6 +78,13 @@ def test_gte_operator(self):
         assert not any("चर नाम" in e for e in errors)
 
 
+@pytest.mark.parametrize("operator", ["+=", "-=", "*=", "/=", "//=", "%=", "**="])
+def test_augmented_assignment_not_flagged_as_invalid_name(operator):
+    code = f"क = ०\nक {operator} १\n"
+    errors = lint_maithili_code(code)
+    assert not any("चर नाम" in error for error in errors)
+
+
 # ---------------------------------------------------------------------------
 # Structural errors still fire
 # ---------------------------------------------------------------------------

From 4e068ed190e069ae53927bc6a29103b84e8823c3 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:26:00 +0200
Subject: [PATCH 05/18] chore(deps): bump actions/upload-artifact from 4 to 7
 (#14)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/ci.yml      | 2 +-
 .github/workflows/publish.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e9fed0d..7951c62 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -70,7 +70,7 @@ jobs:
 
       - name: Upload coverage artifact
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage-xml
           path: coverage.xml
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 0c12493..05c3315 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -91,7 +91,7 @@ jobs:
           /tmp/smoketest/bin/pytest -q --no-cov
 
       - name: Upload distributions artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist
           path: dist/

From cb282bc659a7eb961d65c370d05efceefced94aa Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:26:11 +0200
Subject: [PATCH 06/18] chore(deps): bump actions/setup-python from 5 to 6
 (#15)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/ci.yml      | 2 +-
 .github/workflows/publish.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7951c62..2a083d3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
           cache: pip
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 05c3315..f8ab951 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -54,7 +54,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.12"
           cache: pip

From beab8aa8c1a9f5c983052801e8a38698fb8a7ee6 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:26:16 +0200
Subject: [PATCH 07/18] chore(deps): bump actions/checkout from 4 to 7 (#16)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/ci.yml      | 2 +-
 .github/workflows/publish.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2a083d3..00dfdb9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index f8ab951..3bd447e 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -51,7 +51,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v6

From 3b91ee466e49e22b6e75f9048ff27c6bc636e416 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:26:21 +0200
Subject: [PATCH 08/18] chore(deps): bump actions/download-artifact from 4 to 8
 (#17)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v4...v8)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/publish.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3bd447e..fb6f9d7 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -118,7 +118,7 @@ jobs:
       id-token: write  # OIDC token for Trusted Publishing
     steps:
       - name: Download distributions
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: dist
           path: dist/
@@ -158,7 +158,7 @@ jobs:
       id-token: write  # OIDC token for Trusted Publishing
     steps:
       - name: Download distributions
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: dist
           path: dist/

From b18b1aa4e967e7ade0a1b237b5bf809689a058f5 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:26:32 +0200
Subject: [PATCH 09/18] chore(deps-dev): update twine requirement from <6,>=4.0
 to >=6.2.0,<7 (#18)

Updates the requirements on [twine](https://github.com/pypa/twine) to permit the latest version.
- [Release notes](https://github.com/pypa/twine/releases)
- [Changelog](https://github.com/pypa/twine/blob/main/docs/changelog.rst)
- [Commits](https://github.com/pypa/twine/compare/4.0.0...6.2.0)

---
updated-dependencies:
- dependency-name: twine
  dependency-version: 6.2.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements-dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index d3b271c..782798b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -6,4 +6,4 @@ pytest-timeout>=2.2,<3
 
 # Build + release tooling (used by docs/RELEASE.md workflow).
 build>=1.0,<2
-twine>=4.0,<6
+twine>=6.2.0,<7

From 9dd6738b8a9ffa8d3556a79844f15cd6d8502eb2 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:26:36 +0200
Subject: [PATCH 10/18] chore(deps-dev): update pytest-cov requirement (#20)

Updates the requirements on [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-cov/compare/v4.1.0...v7.1.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 7.1.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements-dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index 782798b..95bbfb0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 # Development dependencies for python_maithili.
 # Runtime has zero dependencies — everything here is for tests and tooling.
 pytest>=7.4,<9
-pytest-cov>=4.1,<6
+pytest-cov>=7.1.0,<8
 pytest-timeout>=2.2,<3
 
 # Build + release tooling (used by docs/RELEASE.md workflow).

From c13389618d3d6e8954e8ade929b4658d2783e0c1 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 20 Jul 2026 21:29:20 +0200
Subject: [PATCH 11/18] chore(deps-dev): update pytest-timeout requirement
 (#21)

Updates the requirements on [pytest-timeout](https://github.com/pytest-dev/pytest-timeout) to permit the latest version.
- [Commits](https://github.com/pytest-dev/pytest-timeout/compare/2.2.0...2.4.0)

---
updated-dependencies:
- dependency-name: pytest-timeout
  dependency-version: 2.4.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements-dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index 95bbfb0..077daf8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,7 +2,7 @@
 # Runtime has zero dependencies — everything here is for tests and tooling.
 pytest>=7.4,<9
 pytest-cov>=7.1.0,<8
-pytest-timeout>=2.2,<3
+pytest-timeout>=2.4.0,<3
 
 # Build + release tooling (used by docs/RELEASE.md workflow).
 build>=1.0,<2

From 0bfd5d086edd23a356e3bc5daad50810cabfe6ab Mon Sep 17 00:00:00 2001
From: Bishwas Jha <18480504+alphacrack@users.noreply.github.com>
Date: Thu, 23 Jul 2026 20:22:25 +0200
Subject: [PATCH 12/18] chore: drop Python 3.9 support (EOL Oct 2025) (#52)

Removes 3.9 from the CI matrix, bumps requires-python to >=3.10, drops
the 3.9 classifier from pyproject.toml and setup.py, and updates the
README support line. Unblocks Dependabot PRs #19 (pytest 9) and #22
(build 1.5) which dropped 3.9 support.

Closes #44

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
---
 .github/workflows/ci.yml | 2 +-
 CHANGELOG.md             | 5 +++++
 README.md                | 2 +-
 pyproject.toml           | 3 +--
 setup.py                 | 3 +--
 5 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 00dfdb9..d0c97ec 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
       - name: Checkout
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a6d508..db4a746 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Removed
+- **Dropped support for Python 3.9** (end-of-life since October 2025).
+  Minimum supported version is now Python 3.10. This unblocks dev-tool
+  upgrades (pytest 9, build 1.5+) that no longer support 3.9. Closes #44.
+
 ### Fixed
 - Augmented assignments no longer produce invalid-variable-name linter errors.
 
diff --git a/README.md b/README.md
index 16d69c3..7c9e827 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ python_maithili examples/hello.dmai
 # or, without installing the console script:
 python -m maithili_dsl examples/hello.dmai
 ```
-✅ Works on Mac, Windows, and Linux, on Python 3.9 – 3.12.
+✅ Works on Mac, Windows, and Linux, on Python 3.10 – 3.12.
 
 ---
 
diff --git a/pyproject.toml b/pyproject.toml
index 77745a3..7639468 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,10 +11,9 @@ license = { file = "LICENSE" }
 authors = [
     { name = "Bishwas Jha", email = "jha.bishwas@gmail.com" },
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 classifiers = [
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
diff --git a/setup.py b/setup.py
index f6ea8c9..077aea9 100644
--- a/setup.py
+++ b/setup.py
@@ -35,12 +35,11 @@ def _read_version() -> str:
     },
     classifiers=[
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
     ],
-    python_requires='>=3.9',
+    python_requires='>=3.10',
 )

From e9554c64e32755b6d4eaf09131e14b3726cde6ee Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 23 Jul 2026 20:24:47 +0200
Subject: [PATCH 13/18] chore(deps-dev): update pytest requirement from
 <9,>=7.4 to >=9.1.1,<10 (#19)

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/7.4.0...9.1.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.1.1
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements-dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index 077daf8..771b4f8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 # Development dependencies for python_maithili.
 # Runtime has zero dependencies — everything here is for tests and tooling.
-pytest>=7.4,<9
+pytest>=9.1.1,<10
 pytest-cov>=7.1.0,<8
 pytest-timeout>=2.4.0,<3
 

From 9ca12acf1bab263e57aa9a0570846604f519c9fe Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 23 Jul 2026 20:24:52 +0200
Subject: [PATCH 14/18] chore(deps-dev): update build requirement from <2,>=1.0
 to >=1.5.0,<2 (#22)

Updates the requirements on [build](https://github.com/pypa/build) to permit the latest version.
- [Release notes](https://github.com/pypa/build/releases)
- [Changelog](https://github.com/pypa/build/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pypa/build/compare/1.0.0...1.5.0)

---
updated-dependencies:
- dependency-name: build
  dependency-version: 1.5.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements-dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index 771b4f8..7065e76 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,5 +5,5 @@ pytest-cov>=7.1.0,<8
 pytest-timeout>=2.4.0,<3
 
 # Build + release tooling (used by docs/RELEASE.md workflow).
-build>=1.0,<2
+build>=1.5.0,<2
 twine>=6.2.0,<7

From 090f90f09d975275e59d953db94fcd905b86f52e Mon Sep 17 00:00:00 2001
From: Sanjay Santhanam <51058514+Sanjays2402@users.noreply.github.com>
Date: Thu, 23 Jul 2026 11:33:09 -0700
Subject: [PATCH 15/18] fix(linter): detect real function call sites (#48)

* fix(linter): detect real function call sites

Match declared functions at Devanagari-aware identifier boundaries and ignore string/comment contents when checking usage. Add regressions for longer identifiers and string literals.

* docs(changelog): note function-as-value trade-off for unused check
---
 CHANGELOG.md                      |  9 +++++++++
 maithili_dsl/transpiler/linter.py | 11 ++++++++++-
 tests/test_linter.py              | 26 ++++++++++++++++++++++++++
 3 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index db4a746..76bb85e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   bad releases.
 - **`build` and `twine`** added to `requirements-dev.txt`.
 
+### Fixed
+- **Unused-function checks accepted identifier substrings as calls.** Function
+  names now require a real Devanagari-aware call site outside strings and
+  comments. Closes #31.
+  - Known trade-off: because a call now requires `name(`, passing a function as
+    a value (`x = जोड़`, `map(जोड़, …)`) counts as *unused* and warns. This is a
+    deliberate choice favoring clarity for learner-oriented code over
+    higher-order usage.
+
 ## [0.3.0] — 2026-04-17
 
 This is a hardening and correctness release. Every P0 finding in
diff --git a/maithili_dsl/transpiler/linter.py b/maithili_dsl/transpiler/linter.py
index 03ce3fa..75510cc 100644
--- a/maithili_dsl/transpiler/linter.py
+++ b/maithili_dsl/transpiler/linter.py
@@ -2,6 +2,8 @@
 
 import re
 
+from .transpile import _make_keyword_pattern, _tokenize_preserving_strings
+
 LINT_CONFIG = {
     "enforce_snake_case": False,
     "max_line_length": 80,
@@ -103,7 +105,14 @@ def lint_maithili_code(code, config=LINT_CONFIG):
     for f in declared_functions:
         if f == "नव":
             continue  # constructor is called implicitly
-        used = any(f in line for line in lines if not line.strip().startswith("कार्य"))
+        call_pattern = re.compile(_make_keyword_pattern(f).pattern + r"\s*\(")
+        used = any(
+            call_pattern.search(text)
+            for line in lines
+            if not line.strip().startswith("कार्य")
+            for is_string, text in _tokenize_preserving_strings(line)
+            if not is_string
+        )
         if not used:
             errors.append(f"चेतावनी: कार्य '{f}' केहनो ठाम प्रयोग नहि कएल गेल अछि")
 
diff --git a/tests/test_linter.py b/tests/test_linter.py
index ab44ac8..e15f557 100644
--- a/tests/test_linter.py
+++ b/tests/test_linter.py
@@ -32,6 +32,32 @@ def test_simple_function_with_usage_passes():
     assert lint_maithili_code(code) == []
 
 
+def test_function_name_inside_longer_identifier_is_unused():
+    code = (
+        "कार्य जोड़():\n"
+        "    फेर करू १\n"
+        "\n"
+        "जोड़ल = ५\n"
+    )
+
+    errors = lint_maithili_code(code)
+
+    assert "चेतावनी: कार्य 'जोड़' केहनो ठाम प्रयोग नहि कएल गेल अछि" in errors
+
+
+def test_function_name_inside_string_is_unused():
+    code = (
+        "कार्य जोड़():\n"
+        "    फेर करू १\n"
+        "\n"
+        "छपाउ(\"जोड़()\")\n"
+    )
+
+    errors = lint_maithili_code(code)
+
+    assert "चेतावनी: कार्य 'जोड़' केहनो ठाम प्रयोग नहि कएल गेल अछि" in errors
+
+
 def test_class_with_constructor_passes():
     code = (
         "वर्ग व्यक्ति:\n"

From dcbac681a8777f89af1872f3e8371695f4f42411 Mon Sep 17 00:00:00 2001
From: MOHAMMED HANAN M T P <91409429+hanu-14@users.noreply.github.com>
Date: Fri, 24 Jul 2026 00:04:50 +0530
Subject: [PATCH 16/18] docs: add examples/README.md describing each example
 program (fixes #41) (#47)

Co-authored-by: MOHAMMED HANAN M T P <hanu@example.com>
Co-authored-by: Bishwas Jha <18480504+alphacrack@users.noreply.github.com>
---
 README.md          |  2 ++
 examples/README.md | 85 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 87 insertions(+)
 create mode 100644 examples/README.md

diff --git a/README.md b/README.md
index 7c9e827..6ac346d 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,8 @@ python -m maithili_dsl examples/hello.dmai
 ```
 ✅ Works on Mac, Windows, and Linux, on Python 3.10 – 3.12.
 
+See [`examples/README.md`](examples/README.md) for a description of every bundled example program.
+
 ---
 
 ## 📄 Example: `examples/person.dmai`
diff --git a/examples/README.md b/examples/README.md
new file mode 100644
index 0000000..880248c
--- /dev/null
+++ b/examples/README.md
@@ -0,0 +1,85 @@
+# Examples
+
+This directory contains runnable Maithili DSL (`.dmai`) programs that demonstrate
+the language. Run any of them with either entry point:
+
+```bash
+python_maithili examples/hello.dmai
+# or, without installing the console script:
+python -m maithili_dsl examples/hello.dmai
+```
+
+> **Note:** `error.dmai` is intentionally broken — it is used by CI to verify
+> that the linter/transpiler correctly rejects invalid programs. It is expected
+> to exit with a non-zero status and should not be run as a normal example.
+
+## `hello.dmai`
+
+Prints a greeting in Maithili.
+
+- **Keywords/modules shown:** `कार्य` (function definition), `छपाउ` (print),
+  top-level call.
+- **Expected output:**
+
+  ```
+  हम मैथिली में कोड कऽ रहल छी।
+  ```
+
+## `person.dmai`
+
+Defines a `व्यक्ति` (person) class, instantiates it, and calls a method.
+
+- **Keywords/modules shown:** `वर्ग` (class), `नव` (constructor), `स्वयं` (self),
+  method definition and invocation.
+- **Expected output:**
+
+  ```
+  हमर नाम सुमन अछि।
+  ```
+
+## `calculator.dmai`
+
+Implements basic arithmetic (`जोड़`/`घटाउ`/`गुणा`/`भाग`) and prints a
+multiplication table.
+
+- **Keywords/modules shown:** functions returning values, `str()`, `range()`,
+  string concatenation, loops (`प्रत्येक`).
+- **Expected output (abridged):**
+
+  ```
+  === मैथिली कैलकुलेटर ===
+  जोड़ का परिणाम: 15
+  घटाउ का परिणाम: 5
+  गुणा का परिणाम: 50
+  भाग का परिणाम: 2.0
+  ```
+
+## `shopping_list.dmai`
+
+Builds a list, appends/removes items, iterates, and computes a sum and average.
+
+- **Keywords/modules shown:** lists (`[]`), `append`/`remove`, `len()`,
+  `यदि` (if), `प्रत्येक` (for), arithmetic and averages.
+- **Expected output (abridged):**
+
+  ```
+  === खरीदारी सूची ===
+  - दूध
+  - रोटी
+  - अंडा
+  - चावल
+  कुल वस्तु: 4
+  दूध सूची में अछि!
+  अंडा हटाएल गेल। नई सूची:
+  - दूध
+  - रोटी
+  - चावल
+  ```
+
+## `error.dmai`
+
+Intentionally invalid program (uses non-Maithili tokens and broken syntax) used
+to confirm the linter rejects bad input.
+
+- **Keywords/modules shown:** n/a (negative test case).
+- **Expected output:** none — the run exits with a non-zero status.

From f54563be326945a6a0a6a2cf37ff3c6a085a3199 Mon Sep 17 00:00:00 2001
From: MOHAMMED HANAN M T P <91409429+hanu-14@users.noreply.github.com>
Date: Fri, 24 Jul 2026 00:06:20 +0530
Subject: [PATCH 17/18] ci: enforce coverage gate with fail_under = 85 (fixes
 #42) (#46)

Co-authored-by: MOHAMMED HANAN M T P <hanu@example.com>
Co-authored-by: Bishwas Jha <18480504+alphacrack@users.noreply.github.com>
---
 pyproject.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyproject.toml b/pyproject.toml
index 7639468..b5874f4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,6 +55,7 @@ omit = [
 ]
 
 [tool.coverage.report]
+fail_under = 85
 exclude_lines = [
     "pragma: no cover",
     "if __name__ == .__main__.:",

From ea68b13d32239a553ac76c4d78a9383661fe7cc8 Mon Sep 17 00:00:00 2001
From: Bishwas Jha <18480504+alphacrack@users.noreply.github.com>
Date: Thu, 23 Jul 2026 20:44:37 +0200
Subject: [PATCH 18/18] release: v0.4.0 (#53)

Bump version to 0.4.0 across __init__.py, pyproject.toml (setup.py reads
from __init__). Finalize CHANGELOG: promote [Unreleased] to [0.4.0] dated
2026-07-23, consolidate the fixed entries, and add the coverage-gate (#42)
and examples README (#41) entries that were merged without changelog lines.

First PyPI publish since 0.2.0 (0.3.0 was never pushed to the index).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
---
 CHANGELOG.md             | 36 +++++++++++++++++++++++-------------
 maithili_dsl/__init__.py |  2 +-
 pyproject.toml           |  2 +-
 3 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76bb85e..f310d88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,13 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-### Removed
-- **Dropped support for Python 3.9** (end-of-life since October 2025).
-  Minimum supported version is now Python 3.10. This unblocks dev-tool
-  upgrades (pytest 9, build 1.5+) that no longer support 3.9. Closes #44.
+## [0.4.0] — 2026-07-23
 
-### Fixed
-- Augmented assignments no longer produce invalid-variable-name linter errors.
+First release published to PyPI since 0.2.0 (0.3.0 was an internal
+release that was never pushed to the index). This release bundles the
+0.3.0 hardening work plus the fixes and tooling below.
 
 ### Added
 - **PyPI publish pipeline** (`.github/workflows/publish.yml`) using
@@ -28,15 +26,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   release flow, version-bump convention, and recovery procedure for
   bad releases.
 - **`build` and `twine`** added to `requirements-dev.txt`.
+- **`examples/README.md`** documenting every bundled example program,
+  the keywords each demonstrates, and expected output. Closes #41.
+- **Enforced coverage gate.** `fail_under = 85` in `pyproject.toml`'s
+  `[tool.coverage.report]` so a coverage regression fails CI. Closes #42.
 
 ### Fixed
-- **Unused-function checks accepted identifier substrings as calls.** Function
-  names now require a real Devanagari-aware call site outside strings and
-  comments. Closes #31.
-  - Known trade-off: because a call now requires `name(`, passing a function as
-    a value (`x = जोड़`, `map(जोड़, …)`) counts as *unused* and warns. This is a
-    deliberate choice favoring clarity for learner-oriented code over
-    higher-order usage.
+- **Augmented assignments flagged as invalid variable names.** `+=`,
+  `-=`, `*=`, `/=`, `//=`, `%=`, `**=` no longer produce a spurious
+  "invalid variable name" linter error. Closes #29.
+- **Unused-function checks accepted identifier substrings as calls.**
+  Function names now require a real Devanagari-aware call site outside
+  strings and comments. Closes #31.
+  - Known trade-off: because a call now requires `name(`, passing a
+    function as a value (`x = जोड़`, `map(जोड़, …)`) counts as *unused*
+    and warns. This is a deliberate choice favoring clarity for
+    learner-oriented code over higher-order usage.
+
+### Removed
+- **Dropped support for Python 3.9** (end-of-life since October 2025).
+  Minimum supported version is now Python 3.10. This unblocks dev-tool
+  upgrades (pytest 9, build 1.5+) that no longer support 3.9. Closes #44.
 
 ## [0.3.0] — 2026-04-17
 
diff --git a/maithili_dsl/__init__.py b/maithili_dsl/__init__.py
index a564c5e..64837b5 100644
--- a/maithili_dsl/__init__.py
+++ b/maithili_dsl/__init__.py
@@ -3,7 +3,7 @@
 from maithili_dsl.transpiler.linter import lint_maithili_code, translate_exception_to_maithili
 from maithili_dsl.transpiler.numeral import convert_devanagari_numerals
 
-__version__ = "0.3.0"
+__version__ = "0.4.0"
 
 __all__ = [
     "__version__",
diff --git a/pyproject.toml b/pyproject.toml
index b5874f4..08b6158 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python_maithili"
-version = "0.3.0"
+version = "0.4.0"
 description = "Run Python code written in Maithili using Devanagari script"
 readme = "README.md"
 license = { file = "LICENSE" }