= GDAL/OGR 2.3.3 Release Notes =

The 2.3.3 release is a bug fix release.

== Build ==

Unix:
 * fix potential link errors when using internal libgif and internal libpng but headers of those libraries are available in the system in different versions than our internal ones (#938)

All:
 * Add support for Poppler 0.69 (#1004) and 0.71 (#1121)

== Port ==

 * /vsiaz/: support BlobEndpoint element in AZURE_STORAGE_CONNECTION_STRING such as found in Azurite (#957)
 * /vsis3/: detect Amazon EC2 instances that use the newer hypervisor (#958)
 * /vsis3/: honour CPL_VSIL_CURL_ALLOWED_EXTENSIONS configuration option (#995)
 * /vsicurl/: fix parsing of HTML file listing that got broken in GDAL 2.3.0

== GDAL utilities ==

 * gdalwarp: fix crash when warping on an existing dataset with less bands as needed
 * gdal2tiles: rename 'tilesize' and 'tileSize' variables to 'tile_size' to have uniform spelling, and fix exception (#1127)
 * gdal_grid: fix -clipsrc from a vector datasource (broken at least since GDAL 2.1)

== GDAL algorithms ==

 * gdal_grid linear: fix detection of degenerate triangles (#973)

== GDAL drivers ==

FITS driver:
 * allow reading/writing beyond 2 billion pixel limit

GeoRaster driver:
 * Fix the issue by freeing the temporary lobs created by readCLob() and writeCLOB().
 
GPKG driver:
 * properly delete gridded coverage raster layers

GRIB driver:
 * interpret missing data values correctly for complex packing when original data is integer (#1063)
 * fix writing of nodata value for complex value when original data is integer (#1063)
 * add UNIT[] node to SRS on reading, so that is valid

GTiff driver:
 * update COMPRESSION_ZSTD to the new value of 50000. Still recognize files created with 34926, but only in the branch, and emit warning
 * internal libtiff: tif_lzma.c: report error in LZMAPreEncode() which can require a lot of memory; and skip gracefully in tests in that case (#1026)

IRIS driver:
 * add UNIT[] node to SRS on reading, so that is valid

NetCDF driver:
 * fix west > east if west should be < east (#1114)

PDS4 driver:
 * add UNIT[] node to SRS on reading, so that is valid

RasterLite2 driver:
 * fail on Create() that is not supported

RDA driver:
 * enable support for DG RDA Image Reference string

VRT driver:
 * deal with serialized nodata value that is slightly outside Float32 validity range (#1071)

WMTS driver:
 * fix issue with inappropriate zoom level being selected causing integer overflow in raster dimension computation
 * fix potential off-by-one pixel when compositing the underlying WMS/TMS source into the final raster

== OGR core ==

 * SQLite dialect: fix when ROWID is used in WHERE clause and the source layer has a real FID column name
 * GML geometry parser: recognize MultiGeometry.geometryMembers syntax (refs https://issues.qgis.org/issues/19571)

== OGRSpatialReference ==

 * FindMatches(): if the input SRS has a EPSG code, check that its definition and the EPSG one actually matches (#990)

== OGR utilities ==

 * ogr_merge.py: fix issue with non-ASCII characters (#1067)

== OGR drivers ==

DXF driver:
 * fix memory leak in case of attempt to write GeometryCollection of unsupported type. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11516.

GeoJSON driver:
 * RFC7946 writer: clip and offset geometries outside [-180,180] (#1068)

KML/LIBKML drivers:
 * robustify for out-of-memory conditions (https://issues.qgis.org/issues/19989)

LIBKML driver:
 * make edition of existing file work (https://issues.qgis.org/issues/18631)
 * implement OGRLIBKMLLayer::SyncToDisk() to fix https://issues.qgis.org/issues/18631)
 * workaround weird issue with OSGeo4W and newline characters in <coordinate> element (https://issues.qgis.org/issues/19215)

MSSQLSpatial driver:
 * Fix geometry parser with M values (#1051)

MVT driver:
 * disable check on 'extent' field in identifiation method, which rejected tiles with extent > 16384

OpenFileGDB driver:
 * fix potential crash on corrupted datasets. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11313.

Shape driver:
 * avoid being dependent on correctness of file size field in .shp. Fixes https://lists.osgeo.org/pipermail/gdal-dev/2018-October/049218.html

SQLite driver:
 * do not run spatial index creation in rollback code

XLSX / ODS drivers:
 * avoid harmless warning in some cases when guessing column data types

== Python bindings ==

 * avoid crash in ReadRaster() under low memory condition (#1026)