<section begin=changes/>
* [http://www.nmr-relax.com/manual/Installation_on_MS_Windows.html MS Windows installation instructions have been added to the manual].
* The RelaxWarning system has been added to standardise warning messages.
* The [http://www.nmr-relax.com/manual/test_suite.html relax manual now describes the test suite]. ([https://gna.org/task/?#3781 task #3781])
* The <sup>15</sup>N CSA values in the sample scripts are now all -172 ppm.
* The ambiguity cased by supplying the option 'None' together with Newton optimisation has been resolved in the documentation. ([https://gna.org/task/?3630 task #3630])
* The reading of Modelfree4 mfout results files no longer fails when residue specific relaxation data is missing (corrupt input data). ([https://gna.org/bugs/?7277 bug #7277])
* If optimisation returns an infinite value or a NaN value, these are now caught and a RelaxError thrown. ([https://gna.org/bugs/?6503 bug #6503], [https://gna.org/task/?3621 task #3621])
* The [http://www.nmr-relax.com/manual/NOE_script_mode_NOE_calculation.html sigma(NOE) equations of Chapter 8 of the manual ] have been fixed. ([https://gna.org/bugs/?7402 bug #7402])
* Files containing relaxation data not consisting of exactly 4 columns will now be read. ([https://gna.org/bugs/?7583 bug #7583])
* Model-free results files from relax versions prior to [[relax 1.2.5|1.2.5]] are now properly read. ([https://gna.org/bugs/?7587 bug #7587])