PyFstat/PyFstat: v2.4.0

This is the v2.4.0 release of PyFstat, a python package for gravitational-wave data analysis with the F-statistic, dated 19/08/2026.

This release supports python 3.10 to 3.13 (python 3.9 support has been dropped since v2.3).

From the changelog:

• Dropped python 3.9 support.
• Full support for F3 and higher spin-downs through signal_parameters dictionaries in Writer and derived classes.
• Flexible parameters dictionary suppport also in search classes.
• Improved error checking on MCMC prior bounds.
• Fixed numerical overflow problems in plot_spectrogram().
• Fixed MCMCGlitchSearch cumulative 2F plot to include F1 glitch steps.
• Migrated past of the test suite to pytest fixtures.
• Updated documentation build and other github integrations.

For a list of known issues, or to report any problems, please see: https://github.com/PyFstat/PyFstat/issues