# OpenGeoSys 6.2.1 released!

**URL:** <https://discourse.opengeosys.org/t/opengeosys-6-2-1-released/391>\
**Category:** Announcements\
**Created:** [August 13, 2019, 1:09pm UTC](https://discourse.opengeosys.org/t/opengeosys-6-2-1-released/391 "2019-08-13T13:09:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![bilke](https://discourse.opengeosys.org/user_avatar/discourse.opengeosys.org/bilke/32/868_2.png) [@bilke](https://discourse.opengeosys.org/u/bilke)\
**Post date:** [August 13, 2019, 1:09pm UTC](https://discourse.opengeosys.org/t/opengeosys-6-2-1-released/391/1 "2019-08-13T13:09:34Z")

</div>

# 🍻 OpenGeoSys 6.2.1 released! 🍻

[![DOI](https://zenodo.org/badge/1701384.svg)](https://zenodo.org/badge/latestdoi/1701384)

# Links

- [Release page on www.opengeosys.org](https://www.opengeosys.org/releases/6.2.1/)
- [GitHub Release](https://github.com/ufz/ogs/releases/tag/6.2.1)
- [Zenodo Release](https://zenodo.org/record/3367100#.XVK1NC1XZTY)
- [Jenkins build](https://jenkins.opengeosys.org/job/ufz/job/ogs/job/master/1176/)

# Changelog

## Features

### New processes

- A thermo-hydro-mechanical (THM) process, monolithic implementation for Newton non-linear solver. [#2446](https://github.com/ufz/ogs/pull/2446)

### Other process’ changes

- Non-equilibrium initial state in the small deformation, HM, and TM processes. [#2501](https://github.com/ufz/ogs/pull/2501), [#2561](https://github.com/ufz/ogs/pull/2561), and [#2544](https://github.com/ufz/ogs/pull/2544)

- A reactive transport process, integrated IPhreeqc Module 3.5.0 for reactive transport modeling. [#2494](https://github.com/ufz/ogs/pull/2494), [#2512](https://github.com/ufz/ogs/pull/2512)

- Fix velocity output in HM. [#2507](https://github.com/ufz/ogs/pull/2507)

- Store process’ names in the Process class instead of an outside map. [#2534](https://github.com/ufz/ogs/pull/2534)

- Generalize permeability models for the fracture flow in LIE/HM:

- CubicLaw (just generalization). [#2542](https://github.com/ufz/ogs/pull/2542)

- ConstantPermeability. [#2543](https://github.com/ufz/ogs/pull/2543)

- Add simple mass lumping to the RichardsMechanics. [#2590](https://github.com/ufz/ogs/pull/2590)

#### Numerics

#### Parameter

- new TimeDependentHeterogeneousParameter. [#2588](https://github.com/ufz/ogs/pull/2588)

Feature can be used for time dependent heterogeneous boundary condition or source term specification.

#### Boundary condition

#### Source term

#### Input and output

- HT process: Use MaterialPropertyLibrary for solid phase properties, too. This makes it necessary to changed the project files. [#2487](https://github.com/ufz/ogs/pull/2487)

- Reactive transport process: Output time-series amounts of kinetic reactants and equilibrium phases defined under the subtree of chemical system. [#2564](https://github.com/ufz/ogs/pull/2564)

### Material models

- Orthotropic elasticity model. [#2428](https://github.com/ufz/ogs/pull/2428)

- Dupuit permeability relation. [#2330](https://github.com/ufz/ogs/pull/2330)

### File I/O

- Gocad TSurface reader has been added [#2547](https://github.com/ufz/ogs/pull/2547)

- Gocad PLine reader has been added [#2586](https://github.com/ufz/ogs/pull/2586)

### Testing and documentation

### New tools

- GocadTSurfaceReader command line utility [#2547](https://github.com/ufz/ogs/pull/2547)/[#2586](https://github.com/ufz/ogs/pull/2586)

### New tools and CLI usage

- Add switch multiple-nodes-allowed to tool constructMeshesFromGeometry, [#2459](https://github.com/ufz/ogs/pull/2459)

- Add option to vtkdiff tool to compare meshes using absolute tolerances and connectivity, [#2485](https://github.com/ufz/ogs/pull/2485)

- Scalar arrays are copied when using the ExtractSurface-tool, [#2492](https://github.com/ufz/ogs/pull/2492)

### Data Explorer

- Mesh to shape export is now writing all cell-based scalar arrays to the DBF-file, [#2436](https://github.com/ufz/ogs/pull/2436)

- Added support of world files to georeference arbitrary raster files, [#2460](https://github.com/ufz/ogs/pull/2460)

- Scalar arrays are copied when extracting mesh surfaces, [#2492](https://github.com/ufz/ogs/pull/2492)

- Gocad TSurfaces can be imported into Data Explorer [#2547](https://github.com/ufz/ogs/pull/2547)

- Gocad PLines can be imported into Data Explorer [#2586](https://github.com/ufz/ogs/pull/2586)

### Other notable code changes

- Conversion to linear mesh is now independent of node numbering. [#2519](https://github.com/ufz/ogs/pull/2519)

## Development workflows

- Added git hooks via [pre-commit](https://pre-commit.com/). See [docs/devguide/getting-started/get-the-source-code/](https://www.opengeosys.org/docs/devguide/getting-started/get-the-source-code/) for installation instructions, [#2599](https://github.com/ufz/ogs/pull/2599)

## Infrastructure

### Jenkins

- Added web link checker, [#2572](https://github.com/ufz/ogs/pull/2572)

- Reordered Jenkins pipeline for better concurrency, [#2560](https://github.com/ufz/ogs/pull/2560)

- Updated Docker base images to Ubuntu 18.04, [#2493](https://github.com/ufz/ogs/pull/2493)

- Migrated from envinf1 to frontend2, [#2440](https://github.com/ufz/ogs/pull/2440)

- Conan: Use lower-case package names for qt, vtk and shapelib, [#2450](https://github.com/ufz/ogs/pull/2450), [#2573](https://github.com/ufz/ogs/pull/2573)

### CMake options changes

- Bumbed miniumum CMake version to 3.12, [#2597](https://github.com/ufz/ogs/pull/2597)

- Added option `OGS_CONAN_BUILD_TYPE` to overwrite Conan build type, [#2577](https://github.com/ufz/ogs/pull/2577)

### Web / Docs

- Added embedded screen recordings with [https://asciinema.org](https://asciinema.org), [#2510](https://github.com/ufz/ogs/pull/2510)

### Version info

- CMake minimum 3.12

- VTK minimum 8.2