* The [http://www.nmr-relax.com/manual/noe_error.html noe.error user function] is now called [http://www.nmr-relax.com/manual/spectrum_baseplane_rmsd.html spectrum.baseplane_rmsd].
* The new [http://www.nmr-relax.com/manual/spectrum_integration_points.html spectrum.integration_points user function] is used to specify the number of points used in a volume integration.
* The R1 R<sub>1</sub> and R2 R<sub>2</sub> relaxation time period is now specified using [http://www.nmr-relax.com/manual/relax_fit_relax_time.html relax_fit.relax_time].
* [http://www.nmr-relax.com/manual/grace_write.html grace.write] will now show a warning when an empty file is being created.
* Replicated spectra are now specified explicitly via [http://www.nmr-relax.com/manual/spectrum_replicated.html spectrum.replicated].
* The RDC and PCS data is now checked before being loaded into relax.
* The N-state model grid search now handles alignment tensor parameters.
* For better optimisation, the grid search lower bound for alignment tensor elements has changed from 0 to -1e<sup>-3</sup>.
* Improvement to the algorithm for determining attached atoms in the internal PDB reader - a 2 rather than 1 Angstrom radius sphere is now being searched.
* The [http://www.nmr-relax.com/manual/molecule_name.html molecule.name user function] can now name unnamed molecules.
* Bug fix for the [http://www.nmr-relax.com/manual/spin_copy.html spin.copy user function], non-empty spin containers are no longer overwritten if the name and num are set to None.
* Fix for the latex_mf_table.py sample script ([https://gna.org/bugs/?13163 bug #13163]).
* Rex values in XML results file not in s<sup>-1 </sup> ([https://gna.org/bugs/?13162 bug #13162]).* Fix for the [http://www.nmr-relax.com/manual/structure_create_diff_tensor_pdb.html structure.create_diff_tensor_pdb user function] which was creating weird shaped ellipsoid diffusion tensor representations when '&alpha' ; and '&beta' ; were unequal ([https://gna.org/bugs/?13032 bug #13032]).
* Sparky assignments such as '004N-H' are now handled.
* Fixed a bad apostrophe character causing the 'full_analysis.py' script to fail.