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Call for testing: GRASS GIS with Python 3

Please help us testing the Python3 support in the yet unreleased GRASS GIS trunk (i.e., version “grass77” which will be released as “grass78” in the near future).

1. Why Python 3?

Python 2 is end-of-life (EOL); the current Python 2.7 will retire in 11 months from today (see We want to follow the “Moving to require Python 3” and complete the change to Python 3. And we need a broader community testing.

2. Download and test!

Packages are available at time:

3. Instructions for testing

4. Problems found? Please report them to us

Problems and bugs can be reported in the GRASS GIS trac. Code changes are welcome!

Thanks for testing grass77!

The post Call for testing: GRASS GIS with Python 3 appeared first on GFOSS Blog | GRASS GIS and OSGeo News.

GRASS GIS 7.4.2 released

We are pleased to announce the GRASS GIS 7.4.2 release

What’s new in a nutshell

After a bit more than four months of development the new update release GRASS GIS 7.4.2 is available. It provides more than 50 stability fixes and improvements compared to the previous stable version 7.4.1. An overview of the new features in the 7.4 release series is available at New Features in GRASS GIS 7.4.

Efforts have concentrated on making the user experience even better, providing many small, but useful additional functionalities to modules and further improving the graphical user interface. Segmentation now support extremely large raster maps. Dockerfile and Windows support received updates. Also the manual was improved. For a detailed overview, see the list of new features. As a stable release series, 7.4.x enjoys long-term support.

Binaries/Installer download:

Source code download:

More details:

See also our detailed announcement:


The Geographic Resources Analysis Support System (, commonly referred to as GRASS GIS, is an Open Source Geographic Information System providing powerful raster, vector and geospatial processing capabilities in a single integrated software suite. GRASS GIS includes tools for spatial modeling, visualization of raster and vector data, management and analysis of geospatial data, and the processing of satellite and aerial imagery. It also provides the capability to produce sophisticated presentation graphics and hardcopy maps. GRASS GIS has been translated into about twenty languages and supports a huge array of data formats. It can be used either as a stand-alone application or as backend for other software packages such as QGIS and R geostatistics. It is distributed freely under the terms of the GNU General Public License (GPL). GRASS GIS is a founding member of the Open Source Geospatial Foundation (OSGeo).

The GRASS Development Team, October 2018

The post GRASS GIS 7.4.2 released appeared first on GFOSS Blog | GRASS GIS and OSGeo News.

GRASS GIS 6.4.3RC4 released

Fourth (and last) release candidate of GRASS GIS 6.4.3 with improvements and stability fixes
A fourth release candidate of GRASS GIS 6.4.3 is now available.

Source code download:

Binaries download:

To get the GRASS GIS 6.4.3RC4 source code directly from SVN:
 svn checkout

Key improvements of this release include some new functionality (assistance for topologically unclean vector data), fixes in the vector network modules, fixes for the wxPython based portable graphical interface (attribute table management, wxNVIZ, and Cartographic Composer), fixes in the location wizard for Datum transform selection and support for PROJ.4 version 4.8.0, improvements for selecting the Python version to be used, enhanced portability for MS-Windows (native support, fixes in case of missing system DLLs), and more translations (esp. Romanian).

See also our detailed announcement:

First time users should explore the first steps tutorial after installation.

Release candidate management at

Please join us in testing this release candidate for the final release.

Consider to donate pizza or beer for the upcoming GRASS GIS Community Sprint in Prague:
Thanks to all contributors!

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