GRASS Developer Wiki

• Getting source code and build hints for various systems
• ​GRASS Programmer's Manual - detailed source code documentation (API manual)
• ​wxGUI Programming Howto
• GRASS Project Steering Committee
  • Motions of the GRASS Project Steering Committee
• Request For Comment (RFC) List
• Python 3 support in GRASS GIS
• See ​the development section of the GRASS user's wiki (to be moved here)

Submitting Rules

• Submitting rules

Release Planning

• List of releases
• GRASS 8 feature and release planning
• GRASS 7 release planning
• GRASS 6 release planning (end of life)

GRASS 7 Notes

• New features in GRASS 7.0 (already implemented)
  • See here removed modules, renamed modules, and here for renamed options
• New features in GRASS 7.2 (already implemented)
• New features in GRASS 7.4 (already implemented)
• New features in GRASS 7.6 (already implemented)
• New features in GRASS 7.8 (already implemented)
• Display architecture in GRASS 7
• Raster library in GRASS 7
  • For raster function name changes from GRASS 6 to GRASS 7, see Grass7/RasterLib/ListOfFunctions
• Vector library in GRASS 7
  • GRASS-OGR data provider
  • GRASS-PostGIS data provider
• Imagery library and modules in GRASS 7
• OpenGL library in GRASS 7
• Metadata support in GRASS 7

Various

• Message standardization
• wxGUI development
• AddOns Management
• Toolboxes proposals and development
• Web Services Support Development
• New GRASS GIS Sample Datasets
• Migrating GRASS code repository from SVN to git

HowTos

• How-To Release - Notes on preparing a GRASS source release
• How-To Contribute - How to contribute to the GRASS development (and how to gain GRASS core and addons git write access)
• How-To write GRASS code - Start writing your own modules!
• How-To use GRASS-git and Trac
• How-To Backport changes to a release branch
• How-To Maintain GRASS Workflow Using Git
• Compilation on MS-Windows
• How-To update source code for a new GDAL version in OSgeo4W
• How-To test GRASS 6 (test protocol, use also to showcase GRASS functionality)

Misc

• Google Summer of Code Projects - List of GRASS-related GSoC Projects
• ​GRASS GIS Project statistics and developer activity (Openhub)
• ​GRASS GIS Addons statistics and developer activity (Openhub)
• Web pages management (kept for historical reason, we use CMS now)

Outdated Content about GRASS Trac

This Trac instance is used for ​GRASS GIS, for bug, enhancement & task tracking, a developer wiki, and a view into the subversion code repository. To edit the wiki pages and bug/enhancement/task tickets you'll need to login with an ​OSGeo Userid. Read the TracGuide for details about how the site works.

The source code is managed on GitHub. The GitHub repositories are:

• GRASS GIS core (7x - 8.x): ​https://github.com/OSGeo/grass
• GRASS GIS legacy (3.x-6.x): ​https://github.com/OSGeo/grass-legacy
• GRASS GIS Add-ons: ​https://github.com/OSGeo/grass-addons
• GRASS GIS promotional material: ​https://github.com/OSGeo/grass-promo
• GRASS GIS Website: ​https://github.com/OSGeo/grass-website

Bug Tracking

• ​Submit a new bug report, a wish, or pull request (on GitHub since January 2020)
• Before January 2020, issues/tickets were managed here on this Trac instance.
  • New issues are to be created on GitHub, but old issues can be still discussed and edited here on Trac (comment, close, ...).
  • List Open Bugs here on Trac
  • For editing, you need to ​login with an ​OSGeo Userid; read some help for using Trac.
  • Bugs on Trac specific to: MS Windows, wxGUI, GRASS 6, GRASS 7
  • List Open Enhancement Requests here on Trac
  • How to use ticket keywords here on Trac
  • Note: All ticket communications from Trac are directly sent to the ​grass-dev mailing list in order to notify the developers.

Releases

• List of releases
• List of ​milestones
• Older releases starting in 1984 (!), see https://grass.osgeo.org/home/history/releases/
• Annual Reports

User Wiki

• Visit at GRASS User Wiki
• GRASS User's Manual
• Mailing lists and ​IRC

Migrating from GRASS GIS 6 to version 7.x?

• see here for changes in parameter names and changed flags
• see here for removed modules and renamed modules
• see here for renamed options

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For a complete list of local wiki pages, see TitleIndex.