add fragment & test

.github/workflows/test-release.yml

@@ -0,0 +1,45 @@
+### DO NOT MERGE
+### tests build of pdm with pdm-build-locked
+
+name: Release
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  release-pypi:
+    name: release-pypi
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: pip
+
+      - name: Check prerelease
+        id: check_version
+        run: |
+          if [[ "${{ github.ref }}" =~ ^refs/tags/[0-9.]+$ ]]; then
+            echo "PRERELEASE=false" >> $GITHUB_OUTPUT
+          else
+            echo "PRERELEASE=true" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Build artifacts
+        run: |
+          pip install .
+          pdm install --plugins
+          pdm build
+
+      - name: Test Build
+        run: |
+          python -m pip install dist/*.whl
+          pdm --help

news/3001.feature.md

@@ -0,0 +1,17 @@
+PDM is now published with optional pinned dependencies using the pdm plugin [pdm-build-locked](https://pdm-build-locked.readthedocs.io/).
+
+To install pdm with its dependencies pinned to the versions it was tested with, run:
+
+```bash
+
+    pipx install pdm[locked]
+```
+
+To install optional dependency group copier:
+
+```bash
+
+    pipx install pdm[locked,copier-locked]
+```
+
+This feature is entirely optional. Installing pdm without the extra will work the same way as before this change.