# ASPECT Newsletter #111

**URL:** <https://community.geodynamics.org/t/aspect-newsletter-111/1494>\
**Category:** ASPECT\
**Created:** [October 6, 2020, 4:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-111/1494 "2020-10-06T16:00:16Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**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 6, 2020, 4:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-111/1494/1 "2020-10-06T16:00:16Z")

</div>

Hello everyone!

This is ASPECT newsletter #111.  
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:

[#3862](https://github.com/geodynamics/aspect/pull/3862): Fix typo and update ref (implemented by [anne-glerum](https://github.com/anne-glerum))  
[#3861](https://github.com/geodynamics/aspect/pull/3861): minor code cleanup in boundary velocity residual (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3860](https://github.com/geodynamics/aspect/pull/3860): TimeStepping: implement a minimum time step size (implemented by [tjhei](https://github.com/tjhei))  
[#3859](https://github.com/geodynamics/aspect/pull/3859): Improve placement of parentheses. (implemented by [bangerth](https://github.com/bangerth))  
[#3858](https://github.com/geodynamics/aspect/pull/3858): aspect.tag: use https url (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3857](https://github.com/geodynamics/aspect/pull/3857): manual: fix bib entry (implemented by [tjhei](https://github.com/tjhei); reviewed by [anne-glerum](https://github.com/anne-glerum))  
[#3856](https://github.com/geodynamics/aspect/pull/3856): update parameters (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3855](https://github.com/geodynamics/aspect/pull/3855): print dt to screen output (implemented by [tjhei](https://github.com/tjhei); reviewed by [MFraters](https://github.com/MFraters))  
[#3853](https://github.com/geodynamics/aspect/pull/3853): tests: reduce absolute tolerance for diffs (implemented by [tjhei](https://github.com/tjhei))  
[#3852](https://github.com/geodynamics/aspect/pull/3852): Modified documentation for a typo. (implemented by [alarshi](https://github.com/alarshi); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3851](https://github.com/geodynamics/aspect/pull/3851): Boundary velocity residual (implemented by [alarshi](https://github.com/alarshi); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3829](https://github.com/geodynamics/aspect/pull/3829): Depth dependent viscosity input from an ascii data file. (implemented by [alarshi](https://github.com/alarshi); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3765](https://github.com/geodynamics/aspect/pull/3765): Incorporating strain healing in strain dependent rheology (implemented by [erinheilman](https://github.com/erinheilman); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#3751](https://github.com/geodynamics/aspect/pull/3751): Extend initial mesh deformation interface (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [gassmoeller](https://github.com/gassmoeller))

And this is a list of recently opened or closed discussions:

[#3854](https://github.com/geodynamics/aspect/issues/3854) Add option to remove surface net rotation (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/).