v1.9.0

Added

• Add maximum cl and maximum altitude constraints in cruise, optimal_cruise, and altitude_change segments by @enricostragiotti in #666
• Start to use Ruff for linting by @enricostragiotti in #634
• Add linting rules in CI using Ruff by @enricostragiotti in #657
• Add new rules in Ruff (UP RET FBT FA PTH) by @enricostragiotti in #609
• Migrate to poetry 2.x by @enricostragiotti in #646
• Added plugin description, guidelines for contributors and ✨ by @florentLutz in #651
• Added compatibility with Python 3.13 (with poetry 2.x) by @enricostragiotti in #649
• Deprecate Python 3.9 by @enricostragiotti in #658
• Added compatibility with Python 3.14 by @enricostragiotti in #661

Modified

• Enhanced Variable Metadata Handling by @enricostragiotti in #622
• Simplify dependencies of the project: Pandas by @enricostragiotti in #660
• Update CI to use the organization variable POETRY_VERSION by @enricostragiotti in #662
• Update minimum OpenMDAO version to version 3.40 by @enricostragiotti in #659

Fixed

• Fix watchman test, preparing to update the OpenMDAO bounds in master branch by @enricostragiotti in #656

Full Changelog: v1.8.4...v1.9.0