Release notes for sbmlutils 0.12.2

Python support

• Add Python 3.15 support for the core package and required CI tests on Linux, Windows, and Intel macOS (#482).
• Keep simulation coverage on Python 3.11 to 3.14. The optional examples extra requires libroadrunner, which does not yet provide Python 3.15 wheels; simulation tests skip in the Python 3.15 environment.

Development

• Add the py3.15 tox environment and document the expanded CI matrix.
• Skip simulation example tests when libroadrunner is unavailable, while continuing to test model creation and other core functionality.

Fixes

• Reject empty iterators in Model.merge_models with ValueError, matching the documented behavior for empty lists.