# ASPECT Newsletter #168 **URL:** \ **Category:** ASPECT\ **Created:** [February 2, 2023, 5:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-168/2791 "2023-02-02T17:00:22Z")\ **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:** [February 2, 2023, 5:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-168/2791/1 "2023-02-02T17:00:22Z")
Hello everyone! This is ASPECT newsletter #168. 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: [#5049](https://github.com/geodynamics/aspect/pull/5049): improve bib file check (implemented by [tjhei](https://github.com/tjhei)) [#5048](https://github.com/geodynamics/aspect/pull/5048): update parameters (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#5047](https://github.com/geodynamics/aspect/pull/5047): Adds missed publications and new ones for January 2023 (implemented by [ljhwang](https://github.com/ljhwang)) [#5045](https://github.com/geodynamics/aspect/pull/5045): switch website to html doc (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#5044](https://github.com/geodynamics/aspect/pull/5044): Avoid unneccessary copy. (implemented by [marcfehling](https://github.com/marcfehling); reviewed by [tjhei](https://github.com/tjhei)) [#5043](https://github.com/geodynamics/aspect/pull/5043): [WIP] initialize current linearization point when we refine the mesh (implemented by [jdannberg](https://github.com/jdannberg)) [#5041](https://github.com/geodynamics/aspect/pull/5041): Fix ascii data initial for two merged chunks (implemented by [gassmoeller](https://github.com/gassmoeller)) [#5040](https://github.com/geodynamics/aspect/pull/5040): remove deprecation warnings (implemented by [bobmyhill](https://github.com/bobmyhill); reviewed by [tjhei](https://github.com/tjhei)) [#5039](https://github.com/geodynamics/aspect/pull/5039): Field types for multicomponent incompressible and derived modules (implemented by [bobmyhill](https://github.com/bobmyhill)) [#5038](https://github.com/geodynamics/aspect/pull/5038): move CompositionalFieldDescription outside Parameters class (implemented by [tjhei](https://github.com/tjhei); reviewed by [bobmyhill](https://github.com/bobmyhill)) [#5037](https://github.com/geodynamics/aspect/pull/5037): fix changelog entry (implemented by [tjhei](https://github.com/tjhei); reviewed by [bobmyhill](https://github.com/bobmyhill)) [#5035](https://github.com/geodynamics/aspect/pull/5035): Clarified phase / phase transition arguments and docstrings (implemented by [bobmyhill](https://github.com/bobmyhill); reviewed by [tjhei](https://github.com/tjhei)) [#5034](https://github.com/geodynamics/aspect/pull/5034): added n\_phase functions to PhaseFunction (implemented by [bobmyhill](https://github.com/bobmyhill); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#5033](https://github.com/geodynamics/aspect/pull/5033): [WIP] Allow phase transitions to affect viscoplastic thermal diffusivity (implemented by [bobmyhill](https://github.com/bobmyhill)) [#5032](https://github.com/geodynamics/aspect/pull/5032): Increase use of parse\_map in material models (implemented by [bobmyhill](https://github.com/bobmyhill); reviewed by [MFraters](https://github.com/MFraters)) [#5031](https://github.com/geodynamics/aspect/pull/5031): automate citations/bibfile check (implemented by [tjhei](https://github.com/tjhei); reviewed by [bobmyhill](https://github.com/bobmyhill)) [#5030](https://github.com/geodynamics/aspect/pull/5030): Docs: last batch of cookbooks (implemented by [cmills1095](https://github.com/cmills1095); reviewed by [tjhei](https://github.com/tjhei)) [#5029](https://github.com/geodynamics/aspect/pull/5029): Added field type functions (implemented by [bobmyhill](https://github.com/bobmyhill); reviewed by [tjhei](https://github.com/tjhei)) [#5028](https://github.com/geodynamics/aspect/pull/5028): Remove unnecessary lines of code (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [MFraters](https://github.com/MFraters)) [#5027](https://github.com/geodynamics/aspect/pull/5027): Fix compiler warnings gcc11 (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [MFraters](https://github.com/MFraters)) [#5025](https://github.com/geodynamics/aspect/pull/5025): Slab2 model (implemented by [alarshi](https://github.com/alarshi)) [#5024](https://github.com/geodynamics/aspect/pull/5024): add a new mesh refinement plugin for the nonadiabatic temperature (implemented by [jdannberg](https://github.com/jdannberg); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#5023](https://github.com/geodynamics/aspect/pull/5023): [WIP] Field types for viscoelasticity and corresponding rheology and EoS modules (implemented by [bobmyhill](https://github.com/bobmyhill)) [#5019](https://github.com/geodynamics/aspect/pull/5019): Some optimizations for the grain size material model (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [gassmoeller](https://github.com/gassmoeller)) [#4843](https://github.com/geodynamics/aspect/pull/4843): Ascii data velocity boundary conditions for the chunk\_with\_lithosphere\_boundary\_indicators geometry model (implemented by [LexVerbrugh](https://github.com/LexVerbrugh); reviewed by [gassmoeller](https://github.com/gassmoeller)) And this is a list of recently opened or closed discussions: [#5046](https://github.com/geodynamics/aspect/issues/5046) Issue on page /user/cookbooks/cookbooks/composition\_passive\_particles/doc/composition\_passive\_particles.html (opened) [#5042](https://github.com/geodynamics/aspect/issues/5042) “Allow fixed temperature on outflow boundaries = false” option does not work in time steps where mesh is refined (opened) [#5036](https://github.com/geodynamics/aspect/issues/5036) Impossible to run aspect on M1 Pro with MacOs Ventura (opened) [#5026](https://github.com/geodynamics/aspect/issues/5026) Remove deprecated code blocks, fix breaking changes, document before ASPECT 3.0 release (opened) [#4991](https://github.com/geodynamics/aspect/issues/4991) Install Trilions on Macbook pro with ARM m1 (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/).