# ASPECT Newsletter #244 **URL:** \ **Category:** ASPECT\ **Created:** [September 10, 2026, 10:00am UTC](https://community.geodynamics.org/t/aspect-newsletter-244/4622 "2026-09-10T10:00:50Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![rgassmoeller](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/rgassmoeller/32/49_2.png) [@rgassmoeller](https://community.geodynamics.org/u/rgassmoeller)\ **Post date:** [September 10, 2026, 10:00am UTC](https://community.geodynamics.org/t/aspect-newsletter-244/4622/1 "2026-09-10T10:00:50Z")
Hello everyone! This is ASPECT newsletter #244. It automatically reports recently merged features and discussions about the ASPECT mantle convection code. Below you find a list of recently proposed or merged features: [#7351](https://github.com/geodynamics/aspect/pull/7351): add link to landlab documentation to README.md (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7350](https://github.com/geodynamics/aspect/pull/7350): Replace simulator pointer use in mesh deformation where possible (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei)) [#7349](https://github.com/geodynamics/aspect/pull/7349): abort on inverted cells in mesh deformation (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7348](https://github.com/geodynamics/aspect/pull/7348): Draft for release notes (implemented by [gassmoeller](https://github.com/gassmoeller)) [#7347](https://github.com/geodynamics/aspect/pull/7347): Add deal.II 9.8 tester (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei)) [#7346](https://github.com/geodynamics/aspect/pull/7346): interface for mesh deformation and to return GMG triangulations (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7345](https://github.com/geodynamics/aspect/pull/7345): fix a latex formula error (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7344](https://github.com/geodynamics/aspect/pull/7344): fastscape unit formatting (implemented by [tjhei](https://github.com/tjhei); reviewed by [alarshi](https://github.com/alarshi)) [#7343](https://github.com/geodynamics/aspect/pull/7343): Copyright years (implemented by [tjhei](https://github.com/tjhei); reviewed by [alarshi](https://github.com/alarshi)) [#7342](https://github.com/geodynamics/aspect/pull/7342): copyright script: ignore files not tracked (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7341](https://github.com/geodynamics/aspect/pull/7341): fix doxygen format/indentation (implemented by [tjhei](https://github.com/tjhei); reviewed by [alarshi](https://github.com/alarshi)) [#7340](https://github.com/geodynamics/aspect/pull/7340): release tasks: add checkboxes (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7339](https://github.com/geodynamics/aspect/pull/7339): clang-tidy fix (implemented by [tjhei](https://github.com/tjhei); reviewed by [alarshi](https://github.com/alarshi)) [#7336](https://github.com/geodynamics/aspect/pull/7336): Refactor matrix-free solve for mesh deformation (implemented by [tjhei](https://github.com/tjhei)) [#7335](https://github.com/geodynamics/aspect/pull/7335): Record basalt formation time on particles (implemented by [RanpengLi](https://github.com/RanpengLi)) [#7334](https://github.com/geodynamics/aspect/pull/7334): Remove simulator includes in benchmarks, cookbooks, tests (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei)) [#7333](https://github.com/geodynamics/aspect/pull/7333): Add External Tool Configuring Section to Manual (implemented by [danieldouglas92](https://github.com/danieldouglas92); reviewed by [tjhei](https://github.com/tjhei)) [#7332](https://github.com/geodynamics/aspect/pull/7332): Add constant reaction rate plugin (implemented by [lhy11009](https://github.com/lhy11009)) [#7331](https://github.com/geodynamics/aspect/pull/7331): Use reaction chain in visco plastic model (implemented by [lhy11009](https://github.com/lhy11009)) [#7330](https://github.com/geodynamics/aspect/pull/7330): Update code style clang format (implemented by [gassmoeller](https://github.com/gassmoeller)) [#7329](https://github.com/geodynamics/aspect/pull/7329): Landlab: enable FPEs after initialization (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7328](https://github.com/geodynamics/aspect/pull/7328): landlab: add missing include (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7327](https://github.com/geodynamics/aspect/pull/7327): fix latex formula in code comment (implemented by [tjhei](https://github.com/tjhei); reviewed by [danieldouglas92](https://github.com/danieldouglas92)) [#7326](https://github.com/geodynamics/aspect/pull/7326): Update astyle (implemented by [gassmoeller](https://github.com/gassmoeller)) [#7325](https://github.com/geodynamics/aspect/pull/7325): Add a Template Class for Running ASPECT/Landlab Models (implemented by [danieldouglas92](https://github.com/danieldouglas92)) [#7324](https://github.com/geodynamics/aspect/pull/7324): Update comment plastic dilation (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7323](https://github.com/geodynamics/aspect/pull/7323): Add Checkpoint/Restart to Landlab Mesh Deformation (implemented by [danieldouglas92](https://github.com/danieldouglas92)) [#7322](https://github.com/geodynamics/aspect/pull/7322): Reduce unnecessarily including simulator.h (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [danieldouglas92](https://github.com/danieldouglas92)) [#7321](https://github.com/geodynamics/aspect/pull/7321): Reduce usage of simulator pointer in solver classes (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7320](https://github.com/geodynamics/aspect/pull/7320): Move gravity point values output directory (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [danieldouglas92](https://github.com/danieldouglas92)) [#7319](https://github.com/geodynamics/aspect/pull/7319): Relax reaction progress tolerance by default (1e20) (implemented by [buchanankerswell](https://github.com/buchanankerswell)) [#7318](https://github.com/geodynamics/aspect/pull/7318): add particle generation time property and a test (implemented by [RanpengLi](https://github.com/RanpengLi); reviewed by [danieldouglas92](https://github.com/danieldouglas92)) [#7317](https://github.com/geodynamics/aspect/pull/7317): Move Mesh Deformation Tests to Subdirectory (implemented by [danieldouglas92](https://github.com/danieldouglas92)) [#7316](https://github.com/geodynamics/aspect/pull/7316): Move Volume of Fluid tests to subdirectory (implemented by [danieldouglas92](https://github.com/danieldouglas92); reviewed by [tjhei](https://github.com/tjhei)) [#7315](https://github.com/geodynamics/aspect/pull/7315): remove pre deal.II 9.6 code (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7312](https://github.com/geodynamics/aspect/pull/7312): Landlab: support sediment age boundary condition (implemented by [tjhei](https://github.com/tjhei)) [#7311](https://github.com/geodynamics/aspect/pull/7311): Use Stokes solver interface class (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei)) [#7310](https://github.com/geodynamics/aspect/pull/7310): Remove unused header includes (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei)) [#7309](https://github.com/geodynamics/aspect/pull/7309): HUGG fork PR (implemented by [LeeviT](https://github.com/LeeviT)) [#7307](https://github.com/geodynamics/aspect/pull/7307): Move matrix based Stokes solver to its own class (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7306](https://github.com/geodynamics/aspect/pull/7306): update manual images for convection-box-2d (implemented by [JarettBakerDunn](https://github.com/JarettBakerDunn)) [#7305](https://github.com/geodynamics/aspect/pull/7305): document --validate (implemented by [tjhei](https://github.com/tjhei); reviewed by [danieldouglas92](https://github.com/danieldouglas92)) [#7304](https://github.com/geodynamics/aspect/pull/7304): fix GMG-GC periodic constraint handling (implemented by [tjhei](https://github.com/tjhei); reviewed by [tjhei](https://github.com/tjhei)) [#7303](https://github.com/geodynamics/aspect/pull/7303): Periodic constraints fix (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7297](https://github.com/geodynamics/aspect/pull/7297): Fix handedness for bingham average (implemented by [Theo-Geo](https://github.com/Theo-Geo); reviewed by [danieldouglas92](https://github.com/danieldouglas92)) [#7294](https://github.com/geodynamics/aspect/pull/7294): Fix serializating the random number generator for the CPO particle property. (implemented by [bangerth](https://github.com/bangerth); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7289](https://github.com/geodynamics/aspect/pull/7289): Output bingham average as quaternions (implemented by [Theo-Geo](https://github.com/Theo-Geo); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7282](https://github.com/geodynamics/aspect/pull/7282): Move Benchmark Tests to Subdirectory (implemented by [danieldouglas92](https://github.com/danieldouglas92); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7281](https://github.com/geodynamics/aspect/pull/7281): Move Cookbook Tests to Subdirectory (implemented by [danieldouglas92](https://github.com/danieldouglas92); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#7244](https://github.com/geodynamics/aspect/pull/7244): test: random particle generator serialization (implemented by [tjhei](https://github.com/tjhei); reviewed by [tjhei](https://github.com/tjhei)) [#7213](https://github.com/geodynamics/aspect/pull/7213): Add Landlab Mesh Deformation Plugin (implemented by [danieldouglas92](https://github.com/danieldouglas92); reviewed by [tjhei](https://github.com/tjhei)) [#7209](https://github.com/geodynamics/aspect/pull/7209): Add FastScape documentation to manual and tester (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [gassmoeller](https://github.com/gassmoeller)) And this is a list of recently opened or closed discussions: [#7338](https://github.com/geodynamics/aspect/issues/7338) ASPECT release 3.1.0 (opened) [#7337](https://github.com/geodynamics/aspect/issues/7337) Bad Mapping for Initial Mesh Deformation with Very Steep Initial Topography (opened) [#7314](https://github.com/geodynamics/aspect/issues/7314) test deal.II 9.8 on Github Actions (opened and closed) [#7313](https://github.com/geodynamics/aspect/issues/7313) Discussion: disable unity builds by default? (opened) [#7308](https://github.com/geodynamics/aspect/issues/7308) Tracking Issue: Using python scripts & perceptually uniform colormaps for cookbook & benchmark documentation (opened) [#5988](https://github.com/geodynamics/aspect/issues/5988) deal.II-v9.5.2 missing bundled directory (closed) [#5923](https://github.com/geodynamics/aspect/issues/5923) Symlink for aspect-release (closed) A list of all major changes since the last release can be found at [this website](https://aspect.geodynamics.org/doc/doxygen/changes_current.html). Thanks for being part of the community! Let us know about questions, problems, bugs or just share your experience by visting our [forum](https://community.geodynamics.org/c/aspect), or by opening issues or pull requests on [Github](https://www.github.com/geodynamics/aspect). Additional information can be found at our [official website](https://aspect.geodynamics.org/), and CIG’s [ASPECT website](https://geodynamics.org/cig/software/aspect/).