== Upgrade the winGRASS-OSGeo4W build environment to a newer GDAL version ==

 * Upgrade the GDAL version by the OSGeo4W installer

See eg. #3716

== Source code update for a new major GDAL version ==

 * [browser:grass/trunk/mswindows/osgeo4w/package.sh] - update of the package script
 * [browser:grass/trunk/lib/raster/gdal.c] - update of the raster lib

See eg.

* r73833
* r73837