# ASPECT Newsletter #225 **URL:** \ **Category:** ASPECT\ **Created:** [October 27, 2025, 11:00am UTC](https://community.geodynamics.org/t/aspect-newsletter-225/4334 "2025-10-27T11:00:19Z")\ **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:** [October 27, 2025, 11:00am UTC](https://community.geodynamics.org/t/aspect-newsletter-225/4334/1 "2025-10-27T11:00:19Z")
Hello everyone! This is ASPECT newsletter #225. 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: [#6731](https://github.com/geodynamics/aspect/pull/6731): GMG: support prescribed values in parts of domain (implemented by [tjhei](https://github.com/tjhei)) [#6730](https://github.com/geodynamics/aspect/pull/6730): Make copy of the timer object. (implemented by [bangerth](https://github.com/bangerth)) [#6729](https://github.com/geodynamics/aspect/pull/6729): Minor cleanups. (implemented by [bangerth](https://github.com/bangerth); reviewed by [tjhei](https://github.com/tjhei)) [#6728](https://github.com/geodynamics/aspect/pull/6728): Unify anisotropic viscosity Stokes assemblers / Fix anisotropic viscosity cookbook (implemented by [gassmoeller](https://github.com/gassmoeller)) [#6727](https://github.com/geodynamics/aspect/pull/6727): Parameter deprecation warning: only trigger on rank 0 (implemented by [tjhei](https://github.com/tjhei); reviewed by [bangerth](https://github.com/bangerth)) [#6725](https://github.com/geodynamics/aspect/pull/6725): Change vector types in solver class. (implemented by [quangx](https://github.com/quangx); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6724](https://github.com/geodynamics/aspect/pull/6724): Make an argument ‘const’. (implemented by [bangerth](https://github.com/bangerth); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6723](https://github.com/geodynamics/aspect/pull/6723): Minor clean-ups to the FastScape interfaces. (implemented by [bangerth](https://github.com/bangerth)) [#6722](https://github.com/geodynamics/aspect/pull/6722): Avoid the use of unicode characters in comments. (implemented by [bangerth](https://github.com/bangerth); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6721](https://github.com/geodynamics/aspect/pull/6721): Move con/destructors to the top of the class member list. (implemented by [bangerth](https://github.com/bangerth); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6719](https://github.com/geodynamics/aspect/pull/6719): Merge maintainers and principal developers. (implemented by [bangerth](https://github.com/bangerth); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6718](https://github.com/geodynamics/aspect/pull/6718): Move Jacky to the ‘principal developer emeriti’ category. (implemented by [bangerth](https://github.com/bangerth); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6717](https://github.com/geodynamics/aspect/pull/6717): cmake: allow installing GWB as a shared library (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6715](https://github.com/geodynamics/aspect/pull/6715): AUTHORS.md: fix Menno’s affiliation (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#6714](https://github.com/geodynamics/aspect/pull/6714): Consistently use vector types (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [bangerth](https://github.com/bangerth)) [#6713](https://github.com/geodynamics/aspect/pull/6713): Sphinx tag all cookbooks and benchmarks (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [bangerth](https://github.com/bangerth)) [#6712](https://github.com/geodynamics/aspect/pull/6712): Fix a regex. (implemented by [bangerth](https://github.com/bangerth); reviewed by [tjhei](https://github.com/tjhei)) [#6711](https://github.com/geodynamics/aspect/pull/6711): Move InverseVelocityBlock to a header file for block Stokes preconditioning and add template arguments for vector/matrix type. (implemented by [quangx](https://github.com/quangx); reviewed by [bangerth](https://github.com/bangerth)) [#6687](https://github.com/geodynamics/aspect/pull/6687): Do some error checking to avoid accessing invalid vector elements. (implemented by [bangerth](https://github.com/bangerth); reviewed by [jdannberg](https://github.com/jdannberg)) [#6681](https://github.com/geodynamics/aspect/pull/6681): Split radial gravity plugins into separate files (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [bangerth](https://github.com/bangerth)) And this is a list of recently opened or closed discussions: [#6732](https://github.com/geodynamics/aspect/issues/6732) Add ascii data class for heating model (opened) [#6726](https://github.com/geodynamics/aspect/issues/6726) prescribed velocity does not drive flow in surrounding regions (opened) [#6720](https://github.com/geodynamics/aspect/issues/6720) Buiter 2016 benchmark currently crashes mid-run (opened) [#6716](https://github.com/geodynamics/aspect/issues/6716) Help writing a CMakeLists (opened) 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/).