[gdal-dev] GDAL Maintainers Meeting Minutes

[Howard Butler]

The December GDAL Maintainers Meeting was canceled due to landing on a holiday and reports have been compiled for this month's Minutes.

# Project News

* [GeoCzech](https://geoczech.org/) has renewed as a Bronze sponsor for 2026. Thanks again GeoCzech for your continued support of the GDAL Sponsorship Program! 
* The [2025 GDAL User Survey](https://gdal.org/survey/) is still active for a few days! Visit https://gdal.org/survey/ and tell the project how you use it, where you get help, what it should do in the future, and how/if it should use LLMs going forward. If you (optionally) give us your email, we'll even enter you to win a GDAL t-shirt!
* Support GDAL with a new t-shirt! Visit https://gdal.org/tshirt/ to purchase. Change your country preference on the bottom of the page. Profits from swag sales go directly to the GDAL Sponsorship Program via NumFOCUS! 


# Maintenance activities update

## Alessandro

* PR review activity
* https://github.com/OSGeo/gdal/issues/13498 GDAL CLI: reproject -
segfault on --bbox with indentical corners
* https://github.com/OSGeo/gdal/issues/13527 gdal_contour behavior
change between 3.9.3 and 3.12.0 when generating contour interval
lines.

## Dan

* finished up `gdal vector sort` (https://github.com/OSGeo/gdal/issues/13351)
* organized/added missing options in the docs for new CLI (https://github.com/OSGeo/gdal/issues/13535)
* fixed crash in `gdal vector check-coverage` (https://github.com/OSGeo/gdal/issues/13521)
* allowed `gdal raster create` to be used in a pipeline, useful for making vector grids (https://github.com/OSGeo/gdal/issues/13554)

## Even

* 45+ tickets triaging/fixing, enhancements, pull request reviews, or other work items
* GDAL 3.12.1 release
* EPSG v12.044, v12.045, v12.046 updates in PROJ (still mostly ETRS89 related)
* `gdal raster calc`: allow to specify input files as nested pipelines
* `gdal vector filter`: add --update-extent
* GeoJSON and GeoJSONSeq: minify output  (might impact downstream that would do byte comparison in their tests)
* `gdal vector buffer`: automatically set output geometry field type to Polygon or MultiPolygon
* GPKG and SQLite SQL dialect: add ST_Hilbert()
* gdal vector check-coverage/clean-coverage/simplify-coverage/sort: add progress report
* a few libtiff security/crashing bug fixes
* Arrow/Parquet/generic arrow: support Timestamp With Offset extension field
* gdal CLI: remove static registration of top-level algorithm that caused issues with (at least some) static builds (MXE Windows builds for R)


# Next Meeting

The next GDAL Maintainers Meeting is 01/22/2026 at 13:00 UTC. Project contributors of any kind are welcome to attend and should contact Howard Butler howard at hobu.co for an invite.

# Online Version

https://gist.github.com/hobu/cf6e0cc6db31b03bea277af6f2f905c7


# Financial Support

* Buy a t-shirt https://gdal.org/tshirt/ 
* Make an individual or corporate donation online https://numfocus.org/donate-to-gdal 
* Organize a contribution to the GDAL Sponsorship Program https://gdal.org/en/latest/sponsors/index.html#sponsorship-program