GDAL2/NEWS-1.x.md

GDAL/OGR 1.11.0 - General Changes

Build(Unix):

• add Unix configure support for SOSI
• remove pointers to old ver of ingres library files
• add --with-libjson-c configure option to build against external libjson-c (>= 0.11) (#4676)
• compilation fixes for iOS (#5197, #5198)
• update to autoconf 2.69
• add pkg-config gdal.pc (#3470)
• configure for FileGDB: add explicit linking to libfgdbunixrtl (requires FileGDB SDK >= 1.2) (#5215); also try .dylib extension (#5221)
• fix so that Java installs are found on the MAC to enable the MDB driver (#5267)
• fix compilation with recent MySQL versions (5.6 for example) (#5284)
• support --with-jp2mrsid with standalone Kakadu with MRSID v8 or later
• Fix parallel build in Python bindings (#5346)
• PCIDSK: don't link against libjpeg if configured --without-jpeg
• Update configure script to pick up ECW JP2 SDK 5.1 (#5390)
• add a 'make install' target for the Java bindings (#5424)
• add Vagrant configuration

Build(Windows):

• add option to generate VC project for x64 on makegdal_gen.bat
• nmake.opt: add WITH_PDB=1 option to optionally generate .pdb file on Release builds (#5420)
• add support for building the OGR SOSI driver as a plugin (#3638)
• add support for building the HDF4 driver as plugin (#5294)
• add support for MrSID v9
• Remove makegdalXX.bat generated files

GDAL 1.11.0 - Overview of Changes

Port:

• vsisubfile: fix Eof() behavior to be POSIX compliant, so that the shapefile reader can read the last feature when using /vsitar (#5093)
• vsicache: fix for 32bit binaries when file size is over 2GB (#5170)
• vsicache: add optional nChunkSize and nCacheSize parameters to VSICreateCachedFile()
• vsicurl: add CPL_VSIL_CURL_USE_HEAD config option to disable use of CURL HEAD for other services like mapbox (likely lame python http implementations)
• vsitar: avoid infinite loop in case of invalid .tar structure
• vsizip: fix path separator in CPLFormFilename
• vsizip: allow additional extensions listed in CPL_VSIL_ZIP_ALLOWED_EXTENSIONS config option.
• vsizip: improve UTF-8 support of filenames inside ZIP file (#5361)
• vsizip: fix ZIP64 support
• vsigzip: reset EOF flag when doing a Seek() to be POSIX compliant
• curl: add .netrc support
• Windows CPLGetSymbol(): avoid dialog boxes to pop up when a DLL or one of its dependencies does not exist (#5211)
• Add CPLOPrintf() and CPLOvPrintf() functions for easy CPLString formatting
• CPLBase64DecodeInPlace() : fix to be robust to malformed base64 strings
• CPLQuadTree: add CPLQuadTreeInsertWithBounds() where the pfnGetBounds is not needed.
• CPLQuadTree: fix potential infinite recursion when inserting several points with identical coordinates in the mode with limited bucket size
• Protect concurrent calls to setlocale() by a mutex (#5366)

Core:

• RFC 45: GDAL datasets and raster bands as virtual memory mapping
• GDALRasterBand::GetHistogram(): ignore nodata values (#4750, #5289)
• allow auto loading of drivers to be disabled via config option
• PAM .aux.xml and VRT: serialize Z component of a GCP as 'Z' attribute, for consistency, instead of GCPZ that could not be read back previously. In reading code, try reading 'Z' and if not found try 'GCPZ' (#5326)
• JPEG2000: Add GDALGeorefPamDataset and GDALJP2AbstractDataset classes and use them in JP2KAK, JP2ECW, JP2OpenJPEG, JPEG2000 and MrSID drivers so that PAM georeferencing consistently overrides internal georeferencing
• GDALDataset::IRasterIO(): don't use BlockBasedRasterIO() when INTERLEAVE=PIXEL if the request band count is just 1
• CopyWholeRaster(): make default GDAL_SWATH_SIZE to 1/4 of GDAL_CACHEMAX instead of hard-coded value of 10 MB
• don't report empty RAT on GDALGetDefaultRAT() (#5232)
• modify GDALGCPsToGeotransform() to do the regression in normalized coordinates to make the math more stable.
• expose new GDALComposeGeoTransforms() function.
• GDALDefaultOverviews::HaveMaskFile(): avoid fetching .ovr file
• JPEG2000: Fix reading georeferencing from some JPEG2000 files with duplicated GeoTIFF JP2Box (#5249)
• Cleanup raster block mutex (#5296)
• Driver registration: move JPEG2000 (Jasper based) after MrSID JPEG2000 support

Algorithms:

• warper: fix regression with lanczos resampling when yradius > xradius (#5058)
• warper: Make GDALCreateGenImgProjTransformer2() and GDALCreateGenImgProjTransformer3() fail when the creation of the reprojection transformer fails
• warper: Fix warping when input pixel size is too close to 0 (#5190)
• warper: revise formula of cubic resampling kernel, and a few optimizations (#5209)
• warper: added DST_METHOD and support for GCP and TPS dest
• warper: add support for DST_METHOD=RPC
• warper: fix mode and near resampling corner computation (#5311)
• warper: GDALGenImgProjTransform(): don't set panSuccess[i] to 1 in the middle of the function, if an intermediate transform before has set the flag to 0
• warper: fix cutline blending (#5343)
• warper: Average/mode kernels: make them less sensitive to numerical precision issues (#5350)
• warper: Average/mode kernels: avoid 'holes' when the source coordinates are in a reversed order from the target coordinates (#5433)
• warper: provide prototypes and work around strict compiler requirements on some opencl platforms (#5400)
• RPC: fix for computation of adfGTFromLL (#5395)
• TPS: optimization for GCC x86_64 that make computation about twice faster with huge number of GCPs
• TPS: when using Armadillo to solve the coefficients, use solve(A,B) instead of inv(A)xB to faster resolution
• TPS: compute direct and inverse transformations in parallel when warping option NUM_THREADS or GDAL_NUM_THREADS config. options are set to > 1
• Geoloc: fix wrong bilinear interpolation in GDALGeoLocTransform() (#5305)
• Geoloc: fail transformation of coordinates that is located on a nodata place of the geoloc array
• rasterize: preliminary support for MERGE_ALG=ADD for heatmaps
• gdal_grid: Add AVX optimized version of GDALGridInverseDistanceToAPower2NoSmoothingNoSearch
• fill_nodata: GDALFillNodata(): Fix use of uninitialized memory and integer overflows (#4010, #5203)
• rpc: Fix out-of-bounds read in RPC dem cubic interpolation

Utilities:

• gdalinfo: add -listmdd and -mdd all options (#5275)
• gdal_translate: add a -exponent option to be used with -scale
• gdal_translate: fix output file naming scheme in gdal_translate -sds (#5119)
• gdal_translate: fix logic in detection non-gray color table level (#5245)
• gdal_translate: add a -norat option
• gdal_translate: don't add 0.1 when -scale is used with a dstmin equal to dstmax (useful to generate a raster with uniform color, i.e. scaleRatio = 0)
• gdal_translate: use floor() to compute image coordinates from world coordinates when specifying -projwin (useful when extracting from left or top of upper-left corner, which generate negative image coordinates) (#5367)
• gdaltindex: remove annoying warning 'Warning 1: Field location of width 255 truncated to 254' (#5121)
• gdaltindex: add -src_srs_name and -src_srs_format to go with MapServer RFC100; add also a -f and -lyr_name options to be able to create a non-shapefile tileindex
• gdalwarp: Fix segfault where metadata values were not being nullchecked properly during conflict resolution (#5069)
• gdalwarp: honor -s_srs when using cutline (#5081)
• gdalwarp: copy nodata values from source to dest if -dstnodata is not given ; add option to not set dest nodata with -dstnodata None (#5087)
• gdalwarp: do not return a non-zero exit status for warnings
• gdalwarp: prevent from copying statistics metadata (#5319)
• gdal_rasterize: set the progress bar to 100% even when there's nothing to do
• gdal_grid: add support for different types of geometries (#5341)
• gdal_grid: add -z_increase and -z_multiply options
• gdaldem: check that value of -z, -s, -az and -alt is numeric
• gdalbuildvrt: validate values of -srcnodata and -vrtnodata arguments
• gdal2tiles.py: Corrected OpenLayers code to reflect fix to geodetic resolution factor
• gdal2tiles.py: add --tmscompatible flag so as to produce 2 tiles at zoom level 0 in geodetic profile
• rgb2pct.py: Use python tempfile logic to avoid permissions issues with cwd (#5079)
• gdal_edit.py: add a -ro option for drivers refusing to use the dataset in update-mode.
• gdal_calc.py: add --allBands options (#5388)
• Add vsipreload.cpp that can be compiled as a shared library that can be LD_PRELOAD'ed as an overload of libc to enable VSI Virtual FILE API to be used with binaries using regular libc for I/O
• Add the wcs_virtds_params.py sample utility to be able to set the MapServer WCS virtual dataset parameters from a tileindex with rasters of mixed SRS (linked to MapServer RFC100)
• gdalcompare.py: move to scripts
• gdalcompare.py: ensure image dimensions match
• gdal_ls.py: Fix issue with UTF-8 characters

Multi driver changes:

• JPEG2000 drivers: take into account PixelIsPoint in GeoJP2 boxes, and expose AREA_OR_POINT=Point (#5437)
• JP2KAK, JP2ECW, JP2OpenJPEG, JPEG2000 CreateCopy(): take into account AREA_OR_POINT=Point if present to write GeoJP2 box (#5437)

AAIGRID:

• revert DECIMAL_PRECISION and add SIGNIFICANT_DIGITS to CreateCopy() (#3732)

AIGRID:

• Turn off errors that can be triggered if the info has no VAT table related with this coverage (#3031)

BAG driver:

• Recognise falseNorthing=10000000 as UTM South (#5152)

DIMAP driver:

• fix memleak in error-code path

DTED driver:

• Speed optimization to be more friendly with CPU cache in GDAL_DTED_SINGLE_BLOCK=YES mode

ECW driver:

• fix crash in GDALDeregister_ECW() with ECW SDK 5 called from GDALDestroy() (#5214)
• fix issue with ECW_CLEVER optimization when nPixelSpace != sizeof eBufDataType (#5262)

Envisat driver:

• implement more reliable way of extracting GCPs from Meris tie-points (#5423)
• add DEM corrections of TP-ADS products when present (#5423)
• workaround dateline discontinuity in GCPs so they can be used with GDAL warping transformers (#5423)

ERS driver:

• fix wrong interpretation of RegistrationCellX/RegistrationCellY (#2612, #3056, #5075)

GeoRaster driver:

• fix RPC support (#4038)
• fix read error when reading from pyramids (#5076)
• make regular table and secure file a default for RDT (#5127)
• fix error when reading NBIT pyramid levels (#5199)
• show the VAT as RAT (#5200)
• fix reading and writing of statistics metadata (#5237)
• add generate pyramid create options (#5288)
• fix incorrect geotransform interpretation when there is no SRS (#5323)

GRASS driver:

• fix compilation issues for GRASS 7

GRIB driver:

• display temperature unit as deg Celsius in metadata (#3606)

GTiff driver:

• when compiling against internal libtiff, in read-only mode, optimization to avoid fetching the whole Strip/TileCounts and Strip/TileOffsets arrays
• add validation of source overview characteristics with COPY_SRC_OVERVIEWS (#5059)
• convert invalid TIFFTAG_RESOLUTIONUNIT=0 to 1(Unknown) (#5069)
• fix potential issues in gt_citation.cpp / CheckUTM()
• upgrade internal libtiff to latest CVS
• implement reading and writing of ICC profiles (#5246)
• make SetColorInterpretation() round-trip with GetColorInterpretation(); read color interpretation from PAM if it exists (overrides internal tiff color interpretation); set TIFFTAG_PHOTOMETRIC=PHOTOMETRIC_RGB if calling SetColorInterpretation() with R,G,B and no explicit PHOTOMETRIC creation option defined
• gt_wkt_srs.cpp: fix compilation with external libgeotiff. The file is dependent of quite a few CPL stuff, don't try to pretend otherwise
• implement GetVirtualMemAuto() for some formulations of TIFF files (RFC 45)
• fix reading a single-strip TIFF file where the single strip is bigger than 2GB (32bit builds only) (#5403)
• look for .tab file before .wld/.tfw

GTX driver:

• Add nodata support (#4660)

HDF4 driver:

• Skip "SceneLineNumber" table if present in the list of geolocation fields of ASTER L1A dataset.

HDF5 driver:

• add support for ODIM H5 georeferencing method (#5032)
• set SRS GEOGCS in all cases (reverts r25801 and closes #4160)
• support HDF5 NATIVE_SCHAR type, subdatsets without PAM (#5088)
• release all opened handles so the file is closed at dataset closing (#5103)
• better deal with dimensions of CSK-L1A HDF5 subdatasets (#4227)
• avoid segmentation fault when H5Sget_simple_extent_ndims() returns negative value (#5291)

HFA driver:

• add minimally tested support for u2 and u4 data in basedata
• use direct binning for thematic layers and real instead of integer for values (#5066)
• add a HFA_COMPRESS_OVR config option to select whether to create compressed overviews (#4866)
• fix rewriting of statistics in existing HFA file where base data value is 8-bit (#5175)
• implement re-writing existing histogram in HFA file, after raster editing (#5176)
• avoid segfaults when creating a Imagine dataset with an invalid WKT (#5258)
• expose color columns in RAT as Integer with values in range [0-255] instead of Real with values [0-1] (#5362)
• report histogram column as GFU_PixelCount instead of GFU_Generic (#5359)
• ensure histogram column written as float for HFA when using RAT API (#5382)

Idrisi driver:

• Improve coordinate system handling and min/max statistics (#4980)

IRIS driver:

• add height information on bands; rename dataset metadata item CAPPI_HEIGHT --> CAPPI_BOTTOM_HEIGHT (#5104)
• IRIS: add support for two bytes data (#5431)

JP2ECW driver:

• fix problem with JP2 write with SDK v5
• fix issue with ECW_CLEVER optimization when nPixelSpace != sizeof eBufDataType (#5262)
• avoid writing dummy GeoJP2 box when source dataset has no georeferencing (#5306)

JP2KAK driver:

• preliminary support for Kakadu V7.x
• fix creation of unsigned int16 with reversible compression (#4050)
• on Windows, use VSI cache for I/O by default, instead Kakadu own I/O layer
• remove extension from 12bit to 16bit (#5328)

JP2OpenJPEG driver:

• avoid 'Empty SOT marker detected: Psot=12.' warning to be repeated several times
• add support for encoding GCPs in a GeoJP2 box (#5279)
• avoid writing dummy GeoJP2 box when source dataset has no georeferencing (#5306)

JPEG driver:

• add autodetection of bitmasks that are msb ordered (#5102)
• avoid memory leak when GDALOpen'ing() a JPEG through a http:// URL, and make it possible to access its overviews
• return YCbCrK raw data for YCbCrK JPEG in GDAL_JPEG_TO_RGB = NO mode (instead of CMYK as before) (#5097)
• implement reading and writing of ICC profiles (#5246)
• internal libjpeg: apply patch for CVE-2013-6629
• allow fallback to PAM to read GCPs
• give priority to PAM GeoTransform if it exists and other source of geotransform (.wld, .tab) also exists (#5352)

KMLSuperOverlay driver:

• recognize an alternate structure for raster KMZ file made of a single doc.kml and tiles whose name pattern is kml_image_L{level}{j}{i}.{png|jpg}
• fix horrible speed performance in Open() (#5094)
• fix crash at dataset closing and inability to read some big PNG tiles (#5154)
• fix to generate files validating against OGC KML 2.2 schema
• put Style into conformity with ATC 7
• remove Region in root KML (ATC 41)
• add NAME and DESCRIPTION creation options; read them back as metadata
• add ALTITUDE and ALTITUDEMODE creation options
• directly write into .kmz file (instead of in temporary location)
• correctly write directories entry in .kmz file
• add progress callback

L1B driver:

• report correct values for GCP (#2403)
• report more GCPS than before
• implement geolocation array
• add fetching of record metadata in .csv file
• add subdatasets with solar zenith angles, cloud coverage
• recognize NOAA-9/14 datasets whose dataset name in TBM header is encoded in EBCDIC and not in ASCII (#2848)
• support opening a few NOAA <= 9 datasets that have no dataset name in the TBM header

LCP driver:

• better handling of projections (#3255)
• add CreateCopy() (#5172)

MBTiles driver:

• add write support
• avoid failure when there's no tile at the center of the maximum zoom level (#5278)
• add capability to open /vsicurl/https:// signed AWS S3 URLs

MEM driver:

• Create(): use calloc() instead of malloc()+memset() for faster creation of huge in-memory datasets

NetCDF driver:

• fix to read netcdf-4 files with UBYTE data (#5053)
• fix reading large netcdf-4 files with chunking and DEFLATE compression
• fix netcdf chunking when creating file with > 2 dims ; add CHUNKING creation option (#5082 )
• fix duplicate nodata metadata when using CreateCopy() (#5084)
• fix copying large metadata in netcdf driver (#5113)
• fix netcdf geotransform detection (#5114)
• fix netcdf driver irregular grids management (#5118 and #4513)
• only call nc_close on a valid netcdf id when closing dataset
• try and identify .grd (and .nc3) files in netcdf-4 format (#5291), so they are identified before the hdf5 driver

NITF driver:

• fix to support reading horizontal and/or vertical mono-block uncompressed images, even when the number of columns is <= 8192 (#3263)
• update NITF Series list with new entries from MIL-STD-2411_1_CHG-3.pdf (#5353)
• allow JP2KAK to be used as the JPEG2000 compression engine in the CreateCopy() case (#5386)

PDF driver:

• Avoid reporting a Poppler error as a GDAL error on some newer USGS GeoPDF files (#5201)
• PDF writing: automatically adjust DPI in case the page dimension exceeds the 14400 maximum value (in user units) allowed by Acrobat (#5412)

PDS driver:

• Parse correctly MISSING_CONSTANT = 16#FF7FFFFB# as a IEEE754 single precision float expressed in hexadecimal; add support for ENCODING_TYPE = ZIP (data file compressed in a ZIP); recognize IMAGE_MAP_PROJECTION as an object included in UNCOMPRESSED_FILE object (#3939)

PNG driver:

• Implement reading and writing of ICC profiles (#5246)

PostgisRaster driver:

• Speed-up dataset opening (#5046).
• Multi-tile multi-band caching added.
• Smarter use of the information advertized in raster_columns view.
• Avoid full table scan in situations without PKID/GIST indices.
• Use of quadtree.

Rasdaman driver:

• caching of tiles for datasets with more than one band (#5298)
• connections are now kept for a whole session (#5298)
• fixing connection-string regex (#5298)
• fixing possible memory leaks (#5298)

Rasterlite driver:

• fix resolution check typo in rasterlite driver

Raw drivers:

• implement GetVirtualMemAuto() (RFC 45)
• IRasterIO(): add special behavior to avoid going to block based IO when the dataset has INTERLEAVE=PIXEL and is eligible to direct I/O access pattern
• allow direct I/O access even if a small proportion of scanlines are loaded (improve QGIS use case where the overview display will load sparse scanlines, which would prevent direct I/O at full resolution afterwards)
• fix optimized RasterIO() when doing sub-sampling with non standard buffer pixel offset (#5438)

RMF driver:

• fix decompression of 24-bit RMF DEM (#5268)

RPFTOC driver:

• fix potential crash on some datasets when selecting the color palette (#5345)

SAGA driver:

• add read/write support for .prj files (#5316)

SRP driver:

• read TRANSH01.THF file to establish subdatasets (#5297)

VRT driver:

• Implement non-linear scaling with a power function (addition of Exponent, SrcMin, SrcMax, DstMin, DstMax sub-elements in )
• Preserve 64bit integer image offsets (#5086)
• Make sure that VRTSourcedRasterBand::AddMaskBandSource() takes into account specified window (#5120)
• Make GDALAutoCreateWarpedVRT() return NULL when GDALSuggestedWarpOutput() fails
• VRTDataset::IRasterIO(): use source DatasetRasterIO even if band count is 1
• VRTWarped: avoid setting up relative paths for things that aren't file-like
• make relativeToVRT=1 work with NITF_IM:, NETCDF:, HDF5:, RASTERLITE:

WCS driver:

• ensure C locale is enforced before parsing floating point values

WMS driver:

• accept 'WMS:http://server/?SRS=EPSG:XXXX' syntax to select the preferred SRS in which to fetch layers
• CPLHTTPFetchMulti(): avoid doing a timeout-only select when there are no file descriptor to wait on (can happen when doing a file:// URL)
• allow cache location to be specified with GDAL_DEFAULT_WMS_CACHE_PATH configuration option if not provided in the XML (#4540)
• Update to be able to understand slight changes in formatting of JSon output of ArcGIS mapserver protocol

XYZ driver:

• accept datasets that have missing values at beginning and/or end of lines, such as MNT250_L93_FRANCE.XYZ
• fix detection when there are only integral values with comma field separator
• reopen with 'rb' flags for Windows happyness

OGR 1.11.0 - Overview of Changes

Core:

• GEOS support: require GEOS >= 3.1.0 and use the _r API of GEOS to avoid issues with the global GEOS error handlers
• exportToWkb(): ISO WKB generation with wkbVariant option (#5330)
• geocoding: when getting several answers from server for a query, report geometries on second, third, etc.. feature, and not only first one (#5057)
• allow auto loading of drivers to be disabled via config option
• remove obsolete OGRGeometryFactory::getGEOSGeometryFactory()
• OGRGeometryFactory::organizePolygons() in DEFAULT method: fix a case with 2 outer rings that are touching by the first point of the smallest one
• OGRGeometryFactory::organizePolygons(): optimization in ONLY_CCW case
• OGRGeometryFactory::organizePolygons(): Add an experimental mode : CCW_INNER_JUST_AFTER_CW_OUTER
• OGRLineString::segmentize() : do not set 0 as z for interpolated points, but the z from the previous point
• OGRLineString::setNumPoints(): add an optional argument to avoid zeroing the arrays
• Add OGRLineString::setZ()
• Add OGRLineString::Project() and OGRLineString::getSubline()
• OGRPolygon: add stealExteriorRing() and stealInteriorRing(int iRing)
• OGRLinearRing::isClockwise(): optimizations and make it work in a degenerated case when a vertex is used several times in the vertex list (#5342)
• OGRLinearRing::isPointOnRingBoundary() : optimizations and take into account bTestEnvelope
• Add OGR_G_SetPointCount and OGR_G_SetPoints functions to API C (#5357)
• OGREnvelope3D::Contains(): fix incorrect test
• Layer algebra: fix handling of method field mapping to output fields when output fields are precreated (#5089)
• Layer algebra: when an error condition is skipped, call CPLErrorReset() (#5269)
• OGRLayer::GetFeature(): make sure that the behavior is not influenced by attribute or spatial filters in the generic implementation; upgrade OGDI, PG, MySQL, MSSQLSpatial, OCI, SDE, PGeo, ODBC, WALK, IDB, SQLite and Ingres driver (#5309)
• introduce OGRLayer::FindFieldIndex() / OGR_L_FindFieldIndex() to lookup potentially laundered field names (RFC 42)
• OGR SQL: upgrade to support RFC 41 (multiple geometry fields)
• OGR SQL: more stricter checks
• OGR SQL: make parsing error report a useful hint where the syntax error occurred
• OGR SQL: fix thread-safety of swq_op_registrar::GetOperator() (#5196)
• OGR SQL: support not explicitly specifying AS keyword for aliasing a column spec
• OGR SQL: don't call CONCAT(a_column ...) or SUBSTR(a_column ...) as a_column
• OGR SQL: validate that arguments of MAX, MIN, AVG, SUM, COUNT are columns and not any expression since this is not supported
• OGR SQL: make AVG field definition a OFTReal
• OGR SQL: implement MIN(), MAX() and AVG() on a date (#5333)
• OGR SQL: fix SELECT * on a layer with a field that has a dot character (#5379)
• SQL SQLITE dialect: Make it available to all OGR drivers that have a specialized ExecuteSQL() implementation

OGRSpatialReference:

• Upgrade to EPSG 8.2 database
• identify LCC_2SP instead of LCC_1SP if lat_0==lat_1 and lat_2 is present (#5191)
• add a variety of linear units to proj4 parsing (#5370)
• Fix crash in CleanupESRIDatumMappingTable() if it is called twice (#5090)
• fix order of AXIS and UNIT nodes in a VERT_CS node (#5105)
• ecw_cs.wkt: add missing TOWGS84[-168,-60,320,0,0,0,0] to NTF datum (#5145)
• fix OGRSpatialReference::importFromProj4() to work with non-C locale (#5147)
• morph central_latitude to latitude_of_origin in morphFromESRI() (#3191)
• OGRProj4CT: avoid using proj when the 2 projections are actually identical (#5188)
• add sanity checks in OGR_SRSNode::importFromWkt() (#5193)
• VERT_CS: when importing from proj.4 put AXIS node after UNIT; COMPD_CS: when importing from EPSG:x+y, set a more meaningful name for the COMPD_CS node
• OGRSpatialReference::Validate() : in addition to hand-validation, use WKT grammar from OGC 01-009 CT
• preserve authority when importing +init=auth_name:auth_code (e.g. +init=IGNF:LAMB93)

Utilities:

• ogrlineref: new utility to deal with linear geometries.
• ogrinfo: upgrade to support RFC 41 (multiple geometry fields)
• ogr2ogr: upgrade to support RFC 41 (multiple geometry fields)
• ogr2ogr: bump default value for -gt from 200 to 20000 (#5391)
• ogr2ogr: add -addfields option to add new fields found in a source layer into an existing layer ; add -unsetFieldWidth option to unset field with and precision; add -dim layer_dim option to force the coordinate dimension of geometries to match the one of the layer geometry type
• ogr2ogr: Check that -t_srs is also specified when -s_srs is specified
• ogr2ogr: add an explicit error message to report FID of feature that couldn't be inserted when CreateFeature() fails
• ogr2ogr: make relaxed lookup optional and add a switch -relaxedFieldNameMatch to allow it (RFC 42)
• ogr2ogr: make sure that the progress bar reaches 100% when converting OSM
• ogr2ogr: make sure that target dataset is properly closed when a CreateFeature() fails (so that truncated shapefiles have their header file properly updated)
• ogr_dispatch.py: Sample Python script to dispatch features into layers according to the value of some fields or the geometry type
• ogrinfo.py: sync with ogrinfo (RFC 41)
• ogr2ogr.py: port -nlt PROMOTE_TO_MULTI option from ogr2ogr.cpp (#5139)

CSV driver:

• avoid erroneously reset of file content when opening in update mode a file without header (#5161)
• upgrade to support RFC 41 in read/write (multiple geometry fields)
• allow backslash doublequote to load (#5318)

DGN driver:

• DGN writing: added polygon inner ring (holes) writing and MSLink writing (#5381)

DXF driver:

• fix writing of 25D linestring where z is not constant (#5210)
• fix writing of POLYLINE objects (#5217, #5210)
• accept reading files starting with a TABLES section (#5307)
• support reading 3DFACE and SOLID (#5380) entities
• fix an error when processing clockwise circle arc (#5182)
• avoid building an invalid polygon when edges cannot be reassembled: turn it into a multilinestring
• use CPLAtof() instead of atof() to avoid issues with locales
• fix linear approximation of circular and elliptic arc in HATCH boundaries (#5182)

DWG driver:

• add support for reading AcDb3dPolyline (#5260)
• fix linear approximation of circular and elliptic arc in HATCH boundaries (#5182)

FileGDB driver:

• implement IgnoreFields API to speed-up a bit the conversion of a sub-set of fields when there's a huge amount of them (e.g. Tiger database).
• when writing of an attribute, use size in bytes (#5192)
• implement ref counting of the FileGDB SDK API' Geodatabase* object to avoid issues on Linux 64bit with interleaved opening and closing of databases (#4270)
• honour update flag to determine which operations are allowed or not
• add a driver global mutex to protect all calls as the FileGDB API SDK is not thread-safe at all
• add a COLUMN_TYPES layer creation option to override default column types; support reading/writing XML column types
• optimize GetFeatureCount() and GetExtent() when there are filters set
• set the default width for string fields to 65536. The width can be configured with the FGDB_STRING_WIDTH configuration option
• fix creation and writing of Binary fields; enable reading
• add a CREATE_MULTIPATCH creation option

FME driver:

• fix Linux compilation

GeoJSON driver:

• recognize alternate formats such as the ones of https://code.google.com/p/election-maps/
• add read support for TopoJSON
• upgrade internal libjson-c to json-c 0.11 (#4676)
• report integer values that are int64 as strings
• add 3d support to esri geojson reader (#5219)
• be less strict on looking for esri field type tag (#5219)
• fix sometimes incorrect result (significant digit lost...) when using -lco COORDINATE_PRECISION=0
• fix handling of huge coordinates when writing (#5377)

GeoRSS driver:

• advertise OLCCreateField capability

GFT driver:

• switch http to https for the oauth2 link to improve security

GML driver:

• add support for multiple geometry columns (RFC 41)
• add support for reading Finnish National Land Survey Topographic data (MTK GML)
• add support for support Finnish NLS cadastral data and Inspire cadastral data.
• add support for Czech RUIAN VFR format
• add data/gml_registry.xml file to associate feature types with schemas.
• extend .gfs syntax to be able to fetch OGR fields from XML attributes.
• extend .gfs syntax to support multiple geometry columns, and define a geometry property name
• autodiscover all XML attributes as OGR fields when creating .gfs file if GML_ATTRIBUTES_TO_OGR_FIELDS is set to YES (#5418)
• allow the in .gfs to have several components that give the full XML path
• fix writing of .xsd file to avoid fid/gml_id being written as regular fields (#5142)
• fix writing of global srsName attribute on the global boundedBy.Envelope when all layers have same SRS (#5143)
• support for writing .gml/.xsd with fields of type StringList, RealList, IntegerList and support for parsing such .xsd files
• when writing .xsd for a datasource that has fields of type StringList, RealList or IntegerList, advertise SF-1 profile in the .XSD schema
• recognize xsd:boolean in XSD parsing and map it to String (#5384)
• add STRIP_PREFIX and WRITE_FEATURE_BOUNDED_BY dataset creation option to help minimizing the size of GML files
• don't write top gml:boundedBy in GML files with multiple layers of different SRS
• fix segfault when reading a GML file with huge coordinates (#5148)
• avoid opening our own .xsd files as valid datasources (#5149)
• make driver thread-safe with Xerces
• open successfully GML datasources with 0 layers (#249, #5205)
• fix tweaking of DescribeFeatureType requests
• support reading WFS 2.0 GetFeature documents with wfs:FeatureCollection as a wfs:member of the top wfs:FeatureCollection
• fix for crash on certain xlink:href with GML_SKIP_RESOLVE_ELEMS=NONE (#5417)
• GML geometry: fix duplicated points in GML_FACE_HOLE_NEGATIVE=YES mode (TopoSurface) (#5230)
• GML geometry: accept CompositeSurface as a child of surfaceMembers (#5369)
• GML geometry: join multilinestrings to linestrings in rings
• GML geometry: correctly deal with MultiSurface of Surface of PolygonPatch where a PolygonPatch has only interior ring(s) and no exterior ring (#5421)
• GML geometry: accept formulations of 'MULTIPOINT EMPTY, MULTILINESTRING EMPTY, MULTIPOLYGON EMPTY and GEOMETRYCOLLECTION EMPTY that are valid GML 3 (and accepted by PostGIS)
• GML geometry: make use of cs, ts and decimal attributes of (deprecated) gml:coordinates element
• GML geometry: accept XML header and comments

GPX driver:

• advertise OLCCreateField capability

ILI driver:

• add support for multiple geometry columns (RFC 41)
• use IlisMeta model reader/writer instead of IOM
• add layers for surface and area geometries

KML driver:

• output KML that validates the ogckml22.xsd schema by placing elements under the level (#5068)
• in writing mode, avoid defining an extending schema for the name and description fields (related to #5208)

LIBKML driver:

• various checks, fixes and improvements related to OGC KML 2.2 Abstract Test Suite
• add support for reading gx:Track as a LINESTRING (#5095)
• add support for writing and reading
• add support for writing atom:author, atom:link, phonenumber, Region, ScreenOverlay, 3D model, StyleMap
• add support for reading and generating Camera object
• add layer creation options to generate a LookAt element at layer level
• if UPDATE_TARGETHREF dataset creation option is defined, a NetworkLinkControl/Update document will be created
• add dataset creation options to generate a NetworkLinkControl element
• add dataset and layer creation options LISTSTYLE_ICON_HREF and LISTSTYLE_TYPE
• add support for writing a NetworkLink
• add support for creating PhotoOverlay objects
• add support for creating BalloonStyle elements
• offer LIBKML_USE_SIMPLEFIELD configuration option can be set to NO to use Data element instead of SimpleField
• add layer creation option FOLDER to optionally write layers as Folder instead of Document
• add dataset and layer creation options NAME, VISIBILITY, OPEN, SNIPPET and DESCRIPTION
• workaround bugs in pretty serializers
• when writing a .kmz file, put layers .kml docs into a layers/ subdirectory
• fix mem leaks, and use after free in kml2FeatureDef() (#5240)
• create document with default namespace set to http://www.opengis.net/kml/2.2
• when writing, consider empty strings as unset (useful when converting from CSV)
• don't write empty