[PROJ] PROJ 9.3.0RC1 & PROJ-data 1.15RC1

[Kristian Evers]

All,

in preparation for a new round of PROJ and PROJ-data release I have uploaded release candidates for both packages.

Download the archives here: 

https://download.osgeo.org/proj/proj-9.3.0RC1.tar.gz
https://download.osgeo.org/proj/proj-9.3.0RC1.zip

https://download.osgeo.org/proj/proj-data-1.15RC1.tar.gz
https://download.osgeo.org/proj/proj-data-1.15RC1.zip

The PROJ release includes various updates and bug fixes. See the release notes below.

The PROJ-data release adds the following transformations grids:

- Argentinian GEOIDE-Ar16geoid model
- Polish geoid model PL-geoid2021
- Canadian HT2_1997, HT2_1997_CGG2013a, HT2_2002v70 and HT2_2002v70_CGG2013a vertical grids

Please test the release candidates and report any issues you may find with them.
Either here on the mailing list or on GitHub.

/Kristian

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9.3.0 Release Notes
-------------------

 Updates
 -------

 o Add C++ API to transform coordinate (#3705)

 o CMake: add PROJ_DB_CACHE_DIR (#3711)

 o Implement EPSG:1026 Mercator (Spherical) method (#3741)

 o CMake: remove useless cross-compiling related checks (#3747)

 o Add mapping of Equidistant Conic to new EPSG:1119 method (#3812)

 o Implement proposal001 from Planetary DWG from OGC (#3816)

 o Add option in proj CLI to use a CRS (#3825)

 o proj_factors(): make it work with projected CRS with non-metre unit and/or
   northing/easting axis order (#3826)

 o PROJ_DEBUG: make ON an alias of 2, and OFF of 1 (#3835)

 o Database: update to EPSG 10.094 (#3847)

 Bug fixes
 ---------

 o GeographicBoundingBox::intersection(): avoid infinite recursion and stack
   overflow on invalid bounding boxes (#3748)

 o Various fixes related to concatenated operations (#3820)

 o Projected CRS identification: fix crash when the base CRS is a
   non-geographic geodetic CRS (#3830)

 o Avoid C++ exceptions to be thrown (and caught) when parsing strings
   like '+proj=longlat +datum=WGS84 +type=crs' (#3834)

 o BUG: Handle prefix whitespace when guessing WKT dialiect (#3841)

 o proj_alter_id(): make it replace an existing ID instead
   of appending a new one (#3846)

 o bonne: fix inverse map projection computations when lat_1 < 0 (#3849)

 o WKT1 ESRI import/export: fix GCS name for EPSG:8353 S-JTSK_[JTSK03]_Krovak_East_North (#3851)