<section begin=description/>
This is mainly a bugfix release. A large number of bugs have been eliminated including [https://gna.org/bugs/?5977 bug #5977], [https://gna.org/bugs/?6288 bug #6288], [https://gna.org/bugs/?6383 bug #6383], [https://gna.org/bugs/?5806 bug #5806], [https://gna.org/bugs/?6384 bug #6384], [https://gna.org/bugs/?6388 bug #6388], [https://gna.org/bugs/?6389 bug #6389], and [https://gna.org/bugs/?5746 bug #5746]. These are described in more detail below. To fix a few of these bugs large disruptive changes were required. This included the change of the local tm τ<sub>m</sub> parameter name from 'tm' to 'local_tm' and the simplification of the model-free model_statistics() function and modification of the model-free calculate() function. Therefore regressions and new bugs may appear in this release, most likely when the local tm τ<sub>m</sub> parameter is encountered or during model selection.
<section end=description/>
* The Sparky and XEasy peak intensity reading functions have been split to allow the easy addition of new peak intensity file types.
* Test of AIC model selection between diffusion tensors added to the test suite. (To catch [https://gna.org/bugs/?5746 bug #5746])
* Changing of the local tm τ<sub>m</sub> parameter name of 'tm' to 'local_tm' to distinguish it from the global tumbling time 'tm'. (Preparation for fixing [https://gna.org/bugs/?6384 bug #6384])
<section end=changes/>