<section begin=description/>
This is a bugfix release. Two bugs affecting specific calculations of the [http://www.nmr-relax.com/api/1.0/maths_fns.jw_mf-module.html spectral density gradient and Hessian] have been removed. One occurs in the Hessian when optimising the spherical diffusion parameters simultaneously with the parameters ''S<sub>f</sub><sup>2</sup>''{{:S2f}}, ''τ<sub>f</sub>''{{:tau_f}}, ''S<sup>2</sup>''{{:S2}}, and ''τ<sub>s</sub>''{{:tau_s}}. The other affects the gradient when optimising the parameters ''S<sub>f</sub><sup>2</sup>''{{:S2f}}, ''S<sub>s</sub><sup>2</sup>''{{:S2s}}, and ''τ<sub>s</sub>''{{:tau_s}}.
<section end=description/>