# ASPECT Newsletter #120

**URL:** <https://community.geodynamics.org/t/aspect-newsletter-120/1686>\
**Category:** ASPECT\
**Created:** [February 11, 2021, 5:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-120/1686 "2021-02-11T17:00:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**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 11, 2021, 5:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-120/1686/1 "2021-02-11T17:00:13Z")

</div>

Hello everyone!

This is ASPECT newsletter #120.  
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:

[#3968](https://github.com/geodynamics/aspect/pull/3968): Add assert and maximum to viscosity computation (implemented by [gassmoeller](https://github.com/gassmoeller))  
[#3967](https://github.com/geodynamics/aspect/pull/3967): Use MappingQCache for curved cells if possible to speed up particle sort (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [jdannberg](https://github.com/jdannberg))  
[#3966](https://github.com/geodynamics/aspect/pull/3966): Better describe the years vs seconds issue. (implemented by [bangerth](https://github.com/bangerth); reviewed by [bobmyhill](https://github.com/bobmyhill))  
[#3965](https://github.com/geodynamics/aspect/pull/3965): Small clean-ups in the VoF postprocessor. (implemented by [bangerth](https://github.com/bangerth); reviewed by [bobmyhill](https://github.com/bobmyhill))  
[#3964](https://github.com/geodynamics/aspect/pull/3964): Add benchmark tests for experimental “melt visco plastic” material model (implemented by [jperryhouts](https://github.com/jperryhouts))  
[#3963](https://github.com/geodynamics/aspect/pull/3963): remove trailing whitespace, ensure single newline from source files (implemented by [bobmyhill](https://github.com/bobmyhill); reviewed by [bangerth](https://github.com/bangerth))  
[#3760](https://github.com/geodynamics/aspect/pull/3760): Reorder particle advection for use with mesh deformation (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:

[#3970](https://github.com/geodynamics/aspect/issues/3970) Adiabatic boundary get\_data\_component() function assert gives an error (opened)  
[#3969](https://github.com/geodynamics/aspect/issues/3969) Chunk geometry model gives different results when not centered around zero meridian (opened)  
[#3952](https://github.com/geodynamics/aspect/issues/3952) A self-adaptive boundary velocity plugin ? (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/).