Changelog

Not Yet Released

Dropped support to Python <3.8
Multi-taper periodogram, including a Lomb-Scargle implementation for non-uniformly sampled data.
Upper limits on pulsations in periodograms and Z searches
New stingray.fourier module containing the basic timing products, usable on numpy arrays
Lots of performance improvements in the AveragedCrossspectrum and AveragedPowerspectrum classes
New methods in Crossspectrum and Powerspectrum to load data from specific inputs: from_events, from_lightcurve, from_time_array, from_lc_list
- from_time_array was also tested using memory-mapped event lists as inputs: useful in very large datasets
New and improved spectral timing methods: ComplexCovarianceSpectrum, CovarianceSpectrum, LagSpectrum, RmsSpectrum
Improved error bars on cross-spectral and spectral timing methods
Some deprecated features are now removed
PSDLogLikelihood now also works with a log-rebinned PDS
PDS/CrossSp initially store the unnormalized power, and convert it on the fly when requested, to any normalization
Lots of bug fixes

Lots of performance improvements
Faster simulations
Averaged Power spectra and Cross spectra now handle Gaussian light curves correctly
Fixes in rebin functions
New statistical functions for signal detection in power spectra and pulsar search periodograms
Much improved FTOOL-compatible mission support
New implementation of the FFTFIT method to calculate pulsar times of arrival
H-test for pulsar searches
Z^2_n search adapted to binned and normally distribute pulse profiles
Large data processing (e.g. from NICER) allowed
Rebinning function now accepts unevenly sampled data
New saving and loading from/to Astropy Tables and Timeseries
Improved I/O to ascii, hdf5 and other formats
Rehaul of documentation