chore: 🚢 release v1.2.0 (#398)

This PR contains the generated changelog for the release v1.2.0.

⚠️ **Merging this PR will immediately trigger a new release**. ⚠️

To specify additional release notes, please edit this comment after the
following line.

---

This release brings several quality-of-life improvements to Tesseract
Core and many new examples and showcases in our
[docs](https://docs.pasteurlabs.ai/projects/tesseract-core/latest/).

**Breaking change:** Support for Python 3.9 is now removed (has been EOL
since October 2025). If you rely on Python 3.9 please pin to
`tesseract_core<1.2.0` and upgrade as soon as possible.

---------

Co-authored-by: Dion Häfner <dion.haefner@simulation.science>

Author: PasteurBot

.github/workflows/get_bump_type.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -e
+
+bump_type="auto"
+
+# Prevent bumping major versions, downgrade to minor in this case
+new_version=$(git-cliff --bumped-version --bump $bump_type)
+current_major=$(cut -d '.' -f 1 <<< "$current_version")
+new_major=$(cut -d '.' -f 1 <<< "$new_version")
+if [[ "$current_major" != "$new_major" ]]; then
+    bump_type="minor"
+fi
+
+echo $bump_type

.github/workflows/release.yml

@@ -51,8 +51,10 @@ jobs:
       - name: Generate changelog
         id: generate_changelog
         run: |
-          git-cliff --output CHANGELOG.md --bump
-          new_version=$(git-cliff --bumped-version)
+          bump_type=$(bash .github/workflows/get_bump_type.sh)
+          git-cliff --output CHANGELOG.md --bump $bump_type
+          new_version=$(git-cliff --bumped-version --bump $bump_type)
+
           echo "new_version=$new_version" >> $GITHUB_OUTPUT
 
       - name: Create Pull Request
@@ -100,8 +102,10 @@ jobs:
       - name: Generate changelog
         id: generate_changelog
         run: |
-          git-cliff --output CHANGELOG.md --bump
-          new_version=$(git-cliff --bumped-version)
+          bump_type=$(bash .github/workflows/get_bump_type.sh)
+          new_version=$(git-cliff --bumped-version --bump $bump_type)
+          git-cliff --output CHANGELOG.md --bump $bump_type
+
           echo "new_version=$new_version" >> $GITHUB_OUTPUT
 
       - name: Update PR with changelog
@@ -146,15 +150,16 @@ jobs:
           current_version=$(gh release view --json tagName --jq '.tagName' || echo "v0.0.0")
           echo "current_version=$current_version" >> $GITHUB_OUTPUT
 
-          new_version=$(git-cliff --bumped-version)
+          bump_type=$(bash .github/workflows/get_bump_type.sh)
+          new_version=$(git-cliff --bumped-version --bump $bump_type)
           echo "new_version=$new_version" >> $GITHUB_OUTPUT
 
       - name: Assemble release notes
         id: release_notes
         env:
           PR_BODY: ${{ github.event.pull_request.body }}
         run: |
-          changelog=$(git-cliff --unreleased --bump --latest --strip all)
+          changelog=$(git-cliff --unreleased --latest --strip all)
           # Strip off first line (which is the version number)
           changelog=$(printf "%s" "$changelog" | sed '1d')
 

CHANGELOG.md

@@ -2,6 +2,36 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.2.0] - 2025-12-04
+
+### Features
+
+- Add /tesseract to PYTHONPATH, similar to native execution (#372)
+- Add example for differentiable quadratic programming (QP) solver (#345)
+- Ensure modules next to tesseract_api.py can always be imported (#400)
+- Adding SpaceClaim/PyMAPDL Tesseract example and docs (#403)
+
+### Bug Fixes
+
+- Change docs to recommend mlflow-data volume mount as rw (#379)
+- Pin Python to <3.14 to resolve docs build failure (#390)
+- Switch MLflow tests from deprecated file backend to sqlite (#389)
+- Catch identical mounted volumes (#337)
+- Remove user creation logic, set `HOME` env var instead (#393)
+- Ensure log messages aren't lost when application exits (#392)
+
+### Refactor
+
+- [**breaking**] Replace python 3.9 with 3.10 as oldest supported version (#401)
+
+### Documentation
+
+- Ansys shapeopt showcase (#404)
+- Add Ansys Fluent QoI-based workflow example (#399)
+- Update showcase READMEs to reflect + link to forum posts (#405)
+- Add open-source alternative to Ansys-based shapeopt to showcase folder (#408)
+- Fix Tesseract names in open source shapeopt showcase (#409)
+
 ## [1.1.1] - 2025-10-15
 
 ### Bug Fixes