- Announcements - lists.mantidproject.org

by Sam Tygier - STFC UKRI

Dear all, We are proud to announce version 6.16.1 of Mantid. This is a patch release that corrects some significant issues since version 6.16.0. The changes are: * Fix empty Instrument View in Windows standalone * Fix crash in TextureUtils for RaggedWorkspaces For a full list of recent changes see the release notes for 6.16.0<https://docs.mantidproject.org/v6.16.0/release/v6.16.0/index.html> and 6.16.1<https://docs.mantidproject.org/v6.16.1/release/v6.16.1/index.html> Installation packages can be found on the download page<https://www.mantidproject.org/installation/index> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.16.1>. The development team has put a great effort into making all of these improvements within Mantid, and we would like to thank all of our beta testers for their time and effort helping us to make this another reliable version of Mantid. Throughout the Mantid project we put a lot of effort into ensuring Mantid is a robust and reliable product. Thank you to everyone that has reported any issues to us. Please keep on reporting any problems you have, or crashes that occur on our discussion board<https://github.com/mantidproject/mantid/discussions> or mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind regards The Mantid Team

2 months, 1 week

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Release of Mantid 6.16

by Sarah Foxley - STFC UKRI

We are proud to announce version 6.16.0 of Mantid. Key features of this release include: * Upgraded to Python 3.12. See the changes made to Python here<https://docs.python.org/3/whatsnew/3.12.html>. * A large number of new features added to the new Instrument Viewer, as detailed in the Mantid Workbench<https://docs.mantidproject.org/v6.16.0/release/v6.16.0/mantidworkbench.html> release notes. * The Help documentation now opens in the system's default web browser instead of an embedded viewer. * Further improvements for texture analysis including Ikeda Carpenter peak shapes and support for IMAT. Further details are in the Diffraction<https://docs.mantidproject.org/nightly/release/v6.15.0/diffraction.html> release notes. * For ORNL instruments which use the ADARA system, it is now possible to record and playback an ADARA-packet stream. See #40748<https://github.com/mantidproject/mantid/pull/40748> for more details. These are just some of the many improvements in this release, so please take a look at the release notes<https://docs.mantidproject.org/nightly/release/v6.16.0/index.html>, which are filled with details of the important changes and improvements in many areas. Please note: We are aware of an issue affecting the instrument view 3d view with the Windows stand alone installer. Affected users can install with Conda/Mamba<https://www.mantidproject.org/installation/index#installing-using-mambaforge> or disable OpenGL in the settings and use the 2d projections. We plan to have a fix for this soon. The development team has put a great effort into making all of these improvements within Mantid, and we would like to thank all of our beta testers for their time and effort helping us to make this another reliable version of Mantid. Throughout the Mantid project we put a lot of effort into ensuring Mantid is a robust and reliable product. Thank you to everyone that has reported any issues to us. Please keep on reporting any problems you have, or crashes that occur on our discussion board<https://github.com/mantidproject/mantid/discussions> or mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind regards The Mantid Team Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone – 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [cid:8b5c30c1-3bd0-4547-a9fb-0e6d1354f9d7]

2 months, 2 weeks

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Release of Mantid v6.15.0

by Peterson, Peter

We are proud to announce version 6.15.0 of Mantid. Installation packages can be found on our download page<https://download.mantidproject.org/> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.15.0>. Key features of this release include: * The new Instrument View has had several updates; read about them in the mantid workbench release notes<https://docs.mantidproject.org/v6.15.0/release/v6.15.0/mantidworkbench.html> . This feature is still being developed and new features will be coming to the nightly. * The engineering diffraction interface<https://docs.mantidproject.org/v6.15.0/interfaces/diffraction/Engineering%2…> has two new tabs, Absorption Correction and Texture. Read more about the work on texture in the difraction release notes<https://docs.mantidproject.org/v6.15.0/release/v6.15.0/diffraction.html>. * Several updates have been made to the AlignAndFocusPowderSlim<https://docs.mantidproject.org/v6.15.0/algorithms/AlignAndFocusPowderSlim-v…>; see the difraction<https://docs.mantidproject.org/v6.15.0/release/v6.15.0/diffraction.html> and framework<https://docs.mantidproject.org/v6.15.0/release/v6.15.0/framework.html> release notes for details. * The Bayes fitting interface<https://docs.mantidproject.org/v6.15.0/interfaces/inelastic/Inelastic%20Bay…> has a new combo box to swap between using the quasielasticbayes (old Fortran library) backend and the quickbayes (new python library) backend. * The ISIS SANS<https://docs.mantidproject.org/v6.15.0/interfaces/isis_sans/ISIS%20SANS.html> Interface has a new option for selecting a range of phi values in the masking tab to generate multiple phi slices from a single 1D reduction - as well as a new checkbox to enable wide-angle corrections. These are just some of the many improvements in this release, so please take a look at the release notes, which are filled with details of the important changes and improvements in many areas. The development team has put a great effort into making all of these improvements within Mantid, and we would like to thank all of our beta testers for their time and effort helping us to make this another reliable version of Mantid. Throughout the Mantid project we put a lot of effort into ensuring Mantid is a robust and reliable product. Thank you to everyone that has reported any issues to us. Please keep on reporting any problems you have, or crashes that occur on our forum<https://forum.mantidproject.org>.

6 months, 2 weeks

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Release of Mantid v6.14

by Sarah Foxley - STFC UKRI

Dear all, We are proud to announce version 6.14.0 of Mantid. Installation packages can be found on our download page<https://download.mantidproject.org/> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.14.0>. These are the highlights for this release: * This is the final release of Mantid to include a package built for Intel Macs. There will continue to be packages built for Apple Silicon (M series processors). * The mslice package is now an optional dependency of mantidworkbench. To install it alongside mantidworkbench run mamba install -c mantidworkbench mslice . Full/standalone installers and IDAaaS remain unchanged; mslice will be automatically provided there. * An experimental version of the new Instrument View has been made available. To access this, right-click on a workspace in the ADS in Workbench, then click (Experimental) Show Instrument . This feature is still at an early stage of development with further functionality being added over the v6.15 development period. * The final pieces of work to support the polarised SANS technique at ISIS have been included in this release. See the SANS release notes<https://docs.mantidproject.org/nightly/release/v6.14.0/sans.html> for more details. * In the SliceViewer<https://docs.mantidproject.org/nightly/workbench/sliceviewer.html>, a masking feature for Matrix Workspaces with a non-numeric y-axis has been added. * Texture Analysis can now be performed using the logic included in Engineering.texture.TextureUtils and a collection of scripts that can be found in diffraction/ENGINX/Texture within the mantid script repository<https://docs.mantidproject.org/nightly/workbench/scriptrepository.html#work…> . * A collection of improvements to AlignAndFocusPowderSlim. See the Diffraction release notes<https://docs.mantidproject.org/nightly/release/v6.14.0/diffraction.html> for more details. These are just some of the many improvements in this release. Please take a look at the release notes, which are filled with details of the important changes and improvements in many 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 forum<https://forum.mantidproject.org/> or by email on mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind Regards, The Mantid Team Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone – 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [cid:44d60d1d-091e-40eb-a7c3-b9e74416d96d]

10 months, 2 weeks

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Mantid User Meeting - Thursday 6th November

by Sarah Foxley - STFC UKRI

Dear all, Places are still open for the Mantid User Workshop, which is being held on Thursday 6th November as a hybrid event. The day will include talks and discussion around the current project, the future of the Science Working Group for Mantid and updates on applications of Mantid from facility scientists. A timetable for the day is available at https://indico.stfc.ac.uk/event/1425/timetable/#20251106.detailed. Please use https://indico.stfc.ac.uk/event/1425/ to register your interest in attending. For those wanting to attend in-person, final registration is Friday 17th October. For those interested in the Developer meeting (3rd-5th November) please note that in-person places are now full. You are more than welcome to attend the afternoon sessions on 4th and 5th November remotely. See https://indico.stfc.ac.uk/event/1425/timetable/#20251104.detailed and https://indico.stfc.ac.uk/event/1425/timetable/#20251105.detailed for talks. Please circulate this to your networks. Many thanks Sarah Foxley (on behalf of the event organisers) Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone – 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [cid:3c3daa46-9a3e-42ed-8e49-193951f4985a]

11 months, 2 weeks

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Release of patch version 6.13.1 of Mantid

by Sarah Foxley - STFC UKRI

Dear all, We are able to announce the availability of the patch version 6.13.1 of Mantid. Installation packages can be found on our download page<https://download.mantidproject.org/> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.13.1> . This patch release corrects some significant issues since version 6.13.0 was released earlier this month. Specifically this patch release: * MantidWorkbench full installers will now work correctly on all Linux distributions. * Muon Analysis and Frequency Domain Analysis interfaces will now open on all Linux distributions. * SaveNXSPE<https://mantidproject.github.io/docs-versioned/v6.13.1/algorithms/SaveNXSPE…> will no longer throw an exception when creating nested groups with the same name. Please take a look at the release notes<https://mantidproject.github.io/docs-versioned/v6.13.1/release/v6.13.1/inde…>, which are filled with details of all the changes and improvements. The development team has put a great effort into making all of these improvements . Thank you to everyone that has reported any issues to us and please keep on reporting any problems you have on our forum<https://forum.mantidproject.org/> or by email on mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind regards, The Mantid Team Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone – 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [cid:4877ab03-4328-40b1-8e35-3857da48595f]

1 year, 1 month

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Release of Mantid v6.13

by Sarah Foxley - STFC UKRI

Hello, We are proud to announce version 6.13.0 of Mantid. Installation packages can be found on our download page<https://download.mantidproject.org/> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.13.0>. These are the highlights for this release: * Availability of a native Apple Silicon package for macOS users. With Rosetta no longer being required, users of this new package should notice a significant performance improvement on Apple Silicon based machines. * A complete overhaul of the NeXus API for loading HDF5-based files. * A set of brand new algorithms for producing and saving multiple polarized SANS files into a single output file. * Significant improvements to the PEARLTransFit algorithm * An upgrade to Python 3.11 Please take a look at the release notes<https://mantidproject.github.io/docs-versioned/v6.13.0/release/v6.13.0/inde…>, 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 forum<https://forum.mantidproject.org/> or by email on mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind regards, The Mantid Team Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone – 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [cid:080777ef-bab3-4ca0-8577-d7bfaaced401]

1 year, 2 months

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Release of Mantid v6.12.0

by Sarah Foxley - STFC UKRI

Hello, We are proud to announce version 6.12.0 of Mantid. Installation packages can be found on our download page<https://download.mantidproject.org/> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.12.0>. These are the highlights for this release: * Drop support for NumPy version 1. We now build against NumPy v2.0 and support up to v2.1. Read about the changes<https://numpy.org/news/#numpy-200-released>. Users should note that NumPy 2 introduces some breaking API changes. See the NumPy 2 Migration Guide<https://numpy.org/doc/stable/numpy_2_0_migration_guide.html> for more details. * Updated Matplotlib from version 3.7 to version 3.9. See release notes for version 3.8<https://matplotlib.org/stable/users/prev_whats_new/whats_new_3.8.0.html> and version 3.9<https://matplotlib.org/stable/users/prev_whats_new/whats_new_3.9.0.html> . * IntegratePeaks1DProfile<https://docs.mantidproject.org/nightly/algorithms/IntegratePeaks1DProfile-v…> now uses MultiDomainFunction<https://docs.mantidproject.org/nightly/fitting/fitfunctions/MultiDomainFunc…> to tie peak profile parameters across pixels. * `PEARL powder` has a new ``trans_custom`` focus mode. This allows the user to specify modules to include in the transverse bank focusing using the parameter ``trans_mod_nums``. The module numbers in the range 1-9 can be specified using the same string syntax as run-numbers - e.g. ``trans_mod_nums="1-3,5"`` corresponds to focusing modules 1,2,3 and 5. * New algorithm ReflectometryISISCreateTransmission<https://docs.mantidproject.org/nightly/algorithms/ReflectometryISISCreateTr…> for creating transmission workspaces that are suitable for passing to PolarizationEfficienciesWildes<https://docs.mantidproject.org/nightly/algorithms/PolarizationEfficienciesW…> . * New algorithm CreateMonteCarloWorkspace<https://docs.mantidproject.org/nightly/algorithms/CreateMonteCarloWorkspace…> that creates a randomly distributed workspace by sampling from the probability distribution of the input workspace * ``setPlotType()`` can now be called on Matrix Workspaces to specify the `plot type`. * The algorithm profiler is now available to Linux users. To enable profiling, the Algorithm Profiling Settings<https://docs.mantidproject.org/nightly/concepts/PropertiesFile.html#algorit…> * MSlice<https://docs.mantidproject.org/nightly/interfaces/direct/MSlice.html> has a new observer for workspaces in the Analysis Data Service in Mantid. Consequently, modifications to workspaces in Mantid are now synchronised with MSlice for shared workspaces. For example, this change now ensures that a deleted workspace in Mantid is also deleted in MSlice, which mitigates a common past error of `RuntimeError: Variable invalidated, data has been deleted`. The behaviour of the MSlice interface is thereby made consistent with that of other interfaces. Please take a look at the release notes<https://docs.mantidproject.org/nightly/release/v6.12.0/index.html>, 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 forum<https://forum.mantidproject.org/> or by email on mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind regards, The Mantid Team Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone - 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [stfc_logo]

1 year, 6 months

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Mantid Developer Meeting and User Workshop 2025 - Registration open

by Sarah Foxley - STFC UKRI

Dear all, We are excited to announce that this year's Mantid Developer Meeting and Mantid User Workshop will both be hosted at the Rutherford Appleton Laboratory, UK. Registration for these events is now open! The Mantid Developer Meeting will run from Monday 3rd November to Wednesday 5th November. It will give developers a chance to meet and discuss the latest issues connected with the development of Mantid. The meeting will include the popular 'What has always bugged me about Mantid is ...' activity. It will also include presentations as part of the afternoon sessions. The developer meeting will be open to new and experienced developers contributing to Mantid. It is unlikely be of interest to the wider user community. The Mantid User Workshop will run on Thursday 6th and Friday 7th November. All Users and Developers are welcome to attend this meeting, which will include a mixture of scientific and technical talks, updates about the Mantid project and discussion about upcoming features. The meeting will be designed to foster dialog between user groups and the development teams, while providing the opportunity for users based at the different facilities to discuss common requirements. Part of both meetings will be hybrid. A timetable will be made available later in the year. Please use https://indico.stfc.ac.uk/event/1425/ to register your interest in attending. Register before Friday 25th July to be considered for site accommodation. Final registration is Friday 17th October but register early as numbers may be limited. Many thanks Sarah Foxley (on behalf of the event organisers) Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone - 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [stfc_logo]

1 year, 6 months

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Release of Mantid v6.11.0

by Sarah Foxley - STFC UKRI

Hello, We are proud to announce version 6.11.0 of Mantid. Installation packages can be found on our download page<https://download.mantidproject.org/> along with updated instructions for installing the latest release via Conda. You can also access the source code on the GitHub release page<https://github.com/mantidproject/mantid/releases/tag/v6.11.0>. 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: * There is a new Deprecation Policy<https://docs.mantidproject.org/nightly/deprecation.html> for Mantid. One of the main changes is that we will deprecate algorithms that have not been used for 3 years or more. * For single crystal diffraction, we added a new algorithm FindMultipleUMatrices to find multiple UB matrices when given lattice parameters for sample with multiple domains or spurious peaks. * Also for single crystal diffraction, IntegratePeaksSkew 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 IntegratePeaksSkew including too many pixels due to small diffuse scattering (seen in the figure above). * For powder diffraction, the algorithms AlignAndFocusPowder, AlignAndFocusPowderFromFiles, SNSPowderReduction and LoadEventAndCompress were updated to use logarithmic compression, which uses less memory. * For reflectometry, we added a new algorithm PolarizationEfficienciesWildes 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 doi: 10.1080/10448630600668738<https://doi.org/10.1080/10448630600668738>. * For SANS, we added new algorithm PolarizerEfficiency for calculating the efficiency of a polariser. * For Inelastic, renamed tabs of QENS Fitting from MSD Fit, I(Q,t) Fit, ConvFit and F(Q) to MSD, I(Q,t), Convolution and Function(Q) respectively. * For Inelastic, the Elwin Tab of Data Processor Interface now includes access to the Slice Viewer or 3D Plot from the output plot widget of the output workspaces containing more than 1 histogram. * Again for Inelastic, QENS Fitting Interface now allows loading a _Result workspace from the I(Q, t) fitting tab into the Function (Q) fitting tab if one of the fit parameters is A0. * Finally, for developers, the Mantid developer environments are now created using a new mantid-developer 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. Please take a look at the release notes<https://docs.mantidproject.org/nightly/release/v6.11.0/index.html>, 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 forum<https://forum.mantidproject.org/> or by email on mantid-help(a)mantidproject.org<mailto:mantid-help@mantidproject.org>. Kind regards, The Mantid Team Sarah Foxley Mantid Team Lead and Engineering Manager Science and Technology Facilities Council Phone - 01235 446938 sarah.foxley(a)stfc.ukri.org<mailto:sarah.foxley@stfc.ukri.org> She/Her/Hers [stfc_logo]

1 year, 10 months

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Announcements