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<p class="xxxxmsonormal">Hello,<o:p></o:p></p>
<p class="xxxxmsonormal"> <o:p></o:p></p>
<p class="xxxxmsonormal">We are proud to announce version 6.11.0 of Mantid. Installation packages can be found on our
<a href="https://download.mantidproject.org/">download page</a> along with updated instructions for installing the latest release via Conda. You can also access the source code on the
<a href="https://github.com/mantidproject/mantid/releases/tag/v6.11.0">GitHub release page</a>.<o:p></o:p></p>
<p class="xxxxmsonormal"> <o:p></o:p></p>
<p class="xxxxmsonormal"> In this release we gave extra attention to fixing bugs and improving algorithms (for example by making them run faster or use less memory). We also added several new algorithms. These are the highlights for this release:<o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
There is a new <a href="https://docs.mantidproject.org/nightly/deprecation.html">
Deprecation Policy</a> for Mantid. One of the main changes is that we will deprecate algorithms that have not been used for 3 years or more.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
For single crystal diffraction, we added a new algorithm <code><span style="font-family:"Calibri",sans-serif">FindMultipleUMatrices</span></code> to find multiple UB matrices when given lattice parameters for sample with multiple domains or spurious peaks.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
Also for single crystal diffraction, <code><span style="font-family:"Calibri",sans-serif">IntegratePeaksSkew</span></code> is better at determining background bins by minimising third-moment (skew). This is achieved by forcing skew > 0 (minimum skew we would
 expect in background). This change stops peak mask of <code><span style="font-family:"Calibri",sans-serif">IntegratePeaksSkew</span></code> including too many pixels due to small diffuse scattering (seen in the figure above).<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
For powder diffraction, the algorithms <code><span style="font-family:"Calibri",sans-serif">AlignAndFocusPowder</span></code>,
<code><span style="font-family:"Calibri",sans-serif">AlignAndFocusPowderFromFiles</span></code>,
<code><span style="font-family:"Calibri",sans-serif">SNSPowderReduction</span></code> and
<code><span style="font-family:"Calibri",sans-serif">LoadEventAndCompress</span></code> were updated to use logarithmic compression, which uses less memory.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
For reflectometry, we added a new algorithm <code><span style="font-family:"Calibri",sans-serif">PolarizationEfficienciesWildes</span></code> for calculating the efficiencies of the polarizing components of an instrument with two flippers. This algorithm implements
 the approach from the A. R. Wildes 2006 paper <a href="https://doi.org/10.1080/10448630600668738">
doi: 10.1080/10448630600668738</a>.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
For SANS, we added new algorithm <code><span style="font-family:"Calibri",sans-serif">PolarizerEfficiency</span></code> for calculating the efficiency of a polariser.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
For Inelastic, renamed tabs of <code><span style="font-family:"Calibri",sans-serif">QENS Fitting</span></code> from
<code><span style="font-family:"Calibri",sans-serif">MSD Fit</span></code>, <code>
<span style="font-family:"Calibri",sans-serif">I(Q,t) Fit</span></code>, <code><span style="font-family:"Calibri",sans-serif">ConvFit</span></code> and
<code><span style="font-family:"Calibri",sans-serif">F(Q)</span></code> to <code>
<span style="font-family:"Calibri",sans-serif">MSD</span></code>, <code><span style="font-family:"Calibri",sans-serif">I(Q,t)</span></code>,
<code><span style="font-family:"Calibri",sans-serif">Convolution</span></code> and
<code><span style="font-family:"Calibri",sans-serif">Function(Q)</span></code> respectively.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
For Inelastic, the <code><span style="font-family:"Calibri",sans-serif">Elwin Tab</span></code> of
<code><span style="font-family:"Calibri",sans-serif">Data Processor Interface</span></code> now includes access to the Slice Viewer or 3D Plot from the output plot widget of the output workspaces containing more than 1 histogram.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
Again for Inelastic, <code><span style="font-family:"Calibri",sans-serif">QENS Fitting Interface</span></code> now allows loading a
<code><span style="font-family:"Calibri",sans-serif">_Result</span></code> workspace from the
<code><span style="font-family:"Calibri",sans-serif">I(Q, t)</span></code> fitting tab into the
<code><span style="font-family:"Calibri",sans-serif">Function (Q)</span></code> fitting tab if one of the fit parameters is
<code><span style="font-family:"Calibri",sans-serif">A0</span></code>.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
Finally, for developers, the Mantid developer environments are now created using a new
<code><span style="font-family:"Calibri",sans-serif">mantid-developer</span></code> Conda meta-package, hosted on our Conda channel. This change does not affect users but greatly simplifies our development process, as package dependencies are now automatically
 sorted on different operating systems. <o:p></o:p></li></ul>
<p class="xxxxmsonormal">Please take a look at the <a href="https://docs.mantidproject.org/nightly/release/v6.11.0/index.html">
release notes</a>, which are filled with details of all the changes and improvements in many other areas. The development team has put a great effort into making all of these improvements and we would like to thank all of our beta testers for their time and
 effort helping us to make this another reliable version. Thank you to everyone that has reported any issues to us and please keep on reporting any problems you have on our
<a href="https://forum.mantidproject.org/">forum</a> or by email on <a href="mailto:mantid-help@mantidproject.org">
mantid-help@mantidproject.org</a>.<o:p></o:p></p>
<p class="xxxxmsonormal"> <o:p></o:p></p>
<p class="xxxxmsonormal">Kind regards,<o:p></o:p></p>
<p class="xxxxmsonormal">The Mantid Team<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#2D2D62;mso-fareast-language:EN-GB">Sarah Foxley<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">Mantid Team Lead and Engineering Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">Science and Technology Facilities Council<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">Phone – 01235 446938<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB"><a href="mailto:sarah.foxley@stfc.ukri.org"><span style="color:#0563C1">sarah.foxley@stfc.ukri.org</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">She/Her/Hers<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#414141;mso-fareast-language:EN-GB"><img border="0" width="348" height="90" style="width:3.625in;height:.9416in" id="Picture_x0020_1" src="cid:image002.png@01DB2620.D3D40CA0" alt="stfc_logo"></span></b><span style="mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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